This work was supported in part by the Hong Kong Research Grants Council, Early Career Scheme, Project #21201217 to C. L. The FWR device has a patent in China: ZL201120231912.1.

The present study and procedures were approved by the Ethics Committee for Animal Experimentation of the Second Military Medical University (Shanghai, China) in accordance with the Guide for the Care and Use of Laboratory Animals (US National Research Council, 1996).
1. Animals
<ol>
	<li>Use Sprague-Dawley (SD) rats of two months (200&#8211;250 g). For each behavioral assay, use a separate group of rats. Always use separate control and experimental groups. 
	NOTE: There were two autonomic tests: EVM and FWR. The EVM had three conditions in addition to a control group (= 4) with three behavioral assays (balance beam, defecation counting and open field = 3) with 8 rats in each for a total of 96 rats (4 x 3 x 8). The FWR had one condition in addition to a control group (= 2) with three behavioral assays (balance beam, defecation counting and open field = 3) with 8 rats in each for a total of 48 rats (2 x 3 x 8). In total, we report 144 rats.</li>
	<li>Cage rodents under a constant 25 &#176;C temperature and 60%&#8211;70% humidity.</li>
	<li>House rodents in 12 h/12 h light/dark cycles with access to food and drinking water ad libitum. 
	NOTE: Since the following protocols are behavioral experiments, rats should be handled gently. Handling animals should be with both hands with body and rear support, so as not to induce anxiety.</li>
	<li>Perform experiments (EVM and FWR) and evaluation assays (balance beam and open field evaluation) in the darkness to minimize visual cues.</li>
</ol>
2. Elevator vertical motion device
<ol>
	<li>Perform the elevator vertical motion procedures in complete darkness to minimize visual cues.</li>
	<li>Place the rodents in the Plexiglas box (22.5 cm x 26 cm x 20 cm). Here the Plexiglas box can accommodate four rodents (custom-made device).</li>
	<li>Ensure the box is fastened shut and securely closed to avoid rodents falling out. Place the Plexiglass box on the elevator pad of the elevator vertical motion device (custom-made device).</li>
	<li>Turn on the elevator vertical motion device to the lowest setting for acclimatization.</li>
	<li>Set the amplitude as 22 cm up and 22 cm down from neutral. Incrementally change elevator vertical motion as follows:
	<ol>
		<li>Set the initial periods as 2,500 ms for 5 min, 2,000 ms for 5 min, and 1,500 ms for 5 min.</li>
		<li>Use a test period of 1000 ms for 2 h.</li>
		<li>Slow the device in reverse using periods of 1500 ms for 5 min, 2000 ms for 5 min, and 2500 ms for 5 min.</li>
	</ol>
	</li>
</ol>
3. Ferris-wheel rotation device
<ol>
	<li>Ferris-wheel rotation device setup
	<ol>
		<li>Place the plexiglass container (22.5 cm x 26 cm x 20 cm) on a wooden bench (custom-made device).</li>
		<li>Place the rodents in the plexiglass container with the long axis of the body perpendicular to the horizontal rotation rod of the Ferris-wheel (custom-made device). 
		NOTE: The placement with body perpendicular to horizontal rod ensures stimulation of otolith organs (anterior-posterior and vertical direction) during rotation.</li>
		<li>Close the plexiglass box securely.</li>
		<li>Place the second set of rodents in the plexiglass container with the long axis of the body perpendicular to the horizontal rotation rod on the second arm of the Ferris-wheel rotation device. Use a second set of rodents with similar mass to balance the Ferris-wheel.</li>
		<li>Securely close the plexiglass box and place on the Ferris-wheel rotation device.</li>
	</ol>
	</li>
	<li>Ferris-wheel rotation procedure
	<ol>
		<li>Perform the Ferris-wheel rotation procedures in complete darkness to minimize visual cues.</li>
		<li>Start the Ferris-wheel rotating in a clockwise direction at 16&#176;/s2 to reach an angular velocity of 120&#176;/s, and then begin to decelerate at 48&#176;/s2 to reach 0&#176;/s. After a 1 s pause, have the container continue to rotate in a counterclockwise direction in the same manner as above (acceleration at 16&#176;/s2 to reach an angular velocity of 120&#176;/s and then deceleration at 48&#176;/s2 to reach 0&#176;/s). The clockwise-pause-counterclockwise cycle requires approximately 10 s to reach its initial position.</li>
		<li>Continue the clockwise-counterclockwise rotation for 2 h per session for approximately 720 rotations.</li>
	</ol>
	</li>
</ol>
4. Evaluation of EVM and FWR
NOTE: The evaluation of Ferris-wheel rotation device and elevator vertical motion is done by three procedures: balance beam testing, defecation counting, and open-field examination. Identical procedures are used to evaluate elevator vertical motion. These evaluation procedures should be done as soon as possible after Ferris-wheel rotation or elevator vertical motion.
<ol>
	<li>Balance beam
	<ol>
		<li>Balance beam setup
		<ol>
			<li>Set up the balance beam10,11,12 by placing two wooden stools (approximately 0.75 m in height) in the experimental field, approximately 110 cm apart.</li>
			<li>Place a black plastic box (15 cm x 15 cm x 8 cm) on the finish stool.</li>
			<li>Place a narrow wooden beam (2.5 cm x 130 cm) between the two stools, leaving a 100 cm distance between the stool edges, from the start stool to the finish stool. 
			NOTE: The entrance to the black plastic box should be at the finish line of the 100 cm.</li>
			<li>Place a lamp at the start stool. Turn on the lamp.</li>
			<li>Turn off the room lights and ensure that the room is as dark as possible. This ensures the rodent follows the direction of the balance beam from the lighted region to the obscured region.</li>
		</ol>
		</li>
		<li>Balance beam procedures 
		NOTE: The motor coordination assay of the balance beam is assessed by measuring the time taken to traverse the elevated wooden beam.
		<ol>
			<li>Train each rodent daily for 3 consecutive days, before the examination period, in order to achieve stable performance on the balance beam10. Train by introducing the rat to the beam in the lighted corner and prompting it to cross the beam. Eventually the rat will cross of its own volition. Rats in the present protocol took 3.6 &#177; 0.9 seconds. 
			NOTE: Some rodents fail to achieve stable performance during training and should be excluded. Some rodents do not perform the task while others lack motivation to cross the beam. Stable performance was two consecutive trial periods of crossing times less than 4 seconds. If a rat falls off during training or assessment it should be categorized as a rat &#39;fall&#39; and not assessed further.</li>
			<li>For the actual procedure, place the trained rodent on the start stool near the light and simultaneously press start on a stopwatch. The rodent should cross the balance beam rapidly and enter the black box on the finish stool.</li>
			<li>Press start on the stopwatch once the rodent is in place and press stop when the nose enters the dark box on the finish stool. The time to traverse the beam is from start stool to finish stool. 
			NOTE: Once the rodent is trained, you may perform an intervention or manipulation, such as inducing motion sickness, prior to evaluation. You may also obtain a baseline measurement, prior to the intervention, using the time to traverse of the last training session.</li>
		</ol>
		</li>
	</ol>
	</li>
	<li>Defecation counting
	<ol>
		<li>Place the plexiglass container containing the four rodents on a bench after the Ferris-wheel test period.</li>
		<li>Remove the rodents and place in individual open-field boxes (below).</li>
		<li>Count the number of feces pellets in the plexiglass box attributed to each rodent. 
		NOTE: A baseline measurement can be obtained, for comparison with the evaluation after elevator motion, by counting feces pellets prior to undergoing elevator vertical motion.</li>
	</ol>
	</li>
	<li>Open-field examination
	<ol>
		<li>Place the rodents in the open-field box (40 cm x 40 cm x 45 cm).</li>
		<li>Record open field behavior using an IR-video camera for 3 min28,29,30.</li>
		<li>Determine the total distance traveled. 
		NOTE: It is very important NOT to place the rodent in the open-field box before elevator vertical motion. The environment must be novel to the rodent. Therefore, baseline measurements should NOT be taken for open-field examination.</li>
	</ol>
	</li>
</ol>

<ol>
	<li>Balaban, C. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Vestibular+autonomic+regulation+(including+motion+sickness+and+the+mechanism+of+vomiting).">Vestibular autonomic regulation (including motion sickness and the mechanism of vomiting).</a> Current Opinion in Neurology. 12, 29-33 (1999).</li><li>Reason, J. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Motion+sickness+adaptation:+a+neural+mismatch+model.">Motion sickness adaptation: a neural mismatch model.</a> Journal of the Royal Society of Medicine. 71, 819-829 (1978).</li><li>Keshavarz, B., Hettinger, L. J., Kennedy, R. S., Campos, J. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Demonstrating+the+potential+for+dynamic+auditory+stimulation+to+contribute+to+motion+sickness.">Demonstrating the potential for dynamic auditory stimulation to contribute to motion sickness.</a> PLOS One. 9, 101016 (2014).</li><li>Stoffregen, T. A., Chen, F. C., Varlet, M., Alcantara, C., Bardy, B. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Getting+your+sea+legs.">Getting your sea legs.</a> PLoS One. 8, 66949 (2013).</li><li>Smart, L. J., Pagulayan, R. J., Stoffregen, T. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Self-induced+motion+sickness+in+unperturbed+stance.">Self-induced motion sickness in unperturbed stance.</a> Brain Research Bulletin. 47, 449-457 (1998).</li><li>Wang, J. Q., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Temporal+change+in+NMDA+receptor+signaling+and+GABAA+receptor+expression+in+rat+caudal+vestibular+nucleus+during+motion+sickness+habituation.">Temporal change in NMDA receptor signaling and GABAA receptor expression in rat caudal vestibular nucleus during motion sickness habituation.</a> Brain Research. 1461, 30-40 (2012).</li><li>Cai, Y. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Glutamatergic+vestibular+neurons+express+FOS+after+vestibular+stimulation+and+project+to+the+NTS+and+the+PBN+in+rats.">Glutamatergic vestibular neurons express FOS after vestibular stimulation and project to the NTS and the PBN in rats.</a> Neuroscience Letters. 417, 132-137 (2007).</li><li>Cai, Y. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Decreased+Fos+protein+expression+in+rat+caudal+vestibular+nucleus+is+associated+with+motion+sickness+habituation.">Decreased Fos protein expression in rat caudal vestibular nucleus is associated with motion sickness habituation.</a> Neuroscience Letters. 480, 87-91 (2010).</li><li>Wang, J. Q., Qi, R. R., Zhou, W., Tang, Y. F., Pan, L. L., Cai, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Differential+Gene+Expression+profile+in+the+rat+caudal+vestibular+nucleus+is+associated+with+individual+differences+in+motion+sickness+susceptibility.">Differential Gene Expression profile in the rat caudal vestibular nucleus is associated with individual differences in motion sickness susceptibility.</a> PLoS One. 10, 0124203 (2015).</li><li>Zhou, W., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sex+and+age+differences+in+motion+sickness+in+rats:+The+correlation+with+blood+hormone+responses+and+neuronal+activation+in+the+vestibular+and+autonomic+nuclei.">Sex and age differences in motion sickness in rats: The correlation with blood hormone responses and neuronal activation in the vestibular and autonomic nuclei.</a> Frontiers in Aging Neuroscience. 9, 29 (2017).</li><li>Wang, J., Liu, J., Pan, L., Qi, R., Liu, P., Zhou, W., Cai, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Storage+of+passive+motion+pattern+in+hippocampal+CA1+region+depends+on+CaMKII/CREB+signaling+pathway+in+a+motion+sickness+rodent+model.">Storage of passive motion pattern in hippocampal CA1 region depends on CaMKII/CREB signaling pathway in a motion sickness rodent model.</a> Scientific Reports. 7, 43385 (2017).</li><li>Qi, R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Anti-cholinergics+mecamylamine+and+scopolamine+alleviate+motion+sickness-induced+gastrointestinal+symptoms+through+both+peripheral+and+central+actions.">Anti-cholinergics mecamylamine and scopolamine alleviate motion sickness-induced gastrointestinal symptoms through both peripheral and central actions.</a> Neuropharmacology. 146, 252-263 (2019).</li><li>Luong, T. N., Carlisle, H. J., Southwell, A., Patterson, P. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Assessment+of+motor+balance+and+coordination+in+mice+using+the+balance+beam.">Assessment of motor balance and coordination in mice using the balance beam.</a> Journal of Visualized Experiments. (49), e2376 (2011).</li><li>Kalueff, A. V., Minasyan, A., Tuohimaa, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Behavioural+characterization+in+rats+using+the+elevated+alley+Suok+test.">Behavioural characterization in rats using the elevated alley Suok test.</a> Behavioural Brain Research. 30 (1), 52-57 (2005).</li><li>Piot-Grosjean, O., Wahl, F., Gobbo, O., Stutzmann, J. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Assessment+of+sensorimotor+and+cognitive+deficits+induced+by+a+moderate+traumatic+injury+in+the+right+parietal+cortex+of+the+rat.">Assessment of sensorimotor and cognitive deficits induced by a moderate traumatic injury in the right parietal cortex of the rat.</a> Neurobiology of Disease. 8 (6), 1082-1093 (2001).</li><li>Goldstein, L. B., Davis, J. N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Beam-walking+in+rats:+Studies+towards+developing+an+animal+model+of+functional+recovery+after+brain+injury.">Beam-walking in rats: Studies towards developing an animal model of functional recovery after brain injury.</a> Journal of Neuroscience Methods. 31 (2), 101-107 (1990).</li><li>Sweis, B. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=modified+beam-walking+apparatus+for+assessment+of+anxiety+in+a+rodent+model+of+blast+traumatic+brain+injury.">modified beam-walking apparatus for assessment of anxiety in a rodent model of blast traumatic brain injury.</a> Behavioural Brain Research. 296, 149-156 (2016).</li><li>Hess, B. J., Dieringer, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Spatial+organization+of+the+maculo-ocular+reflex+of+the+rat:+Responses+during+off-vertical+axis+rotation.">Spatial organization of the maculo-ocular reflex of the rat: Responses during off-vertical axis rotation.</a> European Journal of Neuroscience. 2, 909-919 (1990).</li><li>Armstrong, P. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Preserved+otolith+organ+function+in+caspase-3-deficient+mice+with+impaired+horizontal+semicircular+canal+function.">Preserved otolith organ function in caspase-3-deficient mice with impaired horizontal semicircular canal function.</a> Experimental Brain Research. 233 (6), 1825-1835 (2015).</li><li>Riccio, D. C., Thach, J. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Response+suppression+produced+by+vestibular+stimulation+in+the+rat.">Response suppression produced by vestibular stimulation in the rat.</a> Journal of the Experimental Analysis of Behavior. 11 (4), 479-488 (1968).</li><li>Rabbath, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Abnormal+vestibular+control+of+gaze+and+posture+in+a+strain+of+a+waltzing+rat.">Abnormal vestibular control of gaze and posture in a strain of a waltzing rat.</a> Experimental Brain Research. 136, 211-223 (2001).</li><li>Brettler, S. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+effect+of+gravity+on+the+horizontal+and+vertical+vestibulo-ocular+reflex+in+the+rat.">The effect of gravity on the horizontal and vertical vestibulo-ocular reflex in the rat.</a> Experimental Brain Research. 132, 434-444 (2000).</li><li>Hutchison, S. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Taste+aversion+in+albino+rats+using+centrifugal+spin+as+an+unconditioned+stimulus.">Taste aversion in albino rats using centrifugal spin as an unconditioned stimulus.</a> Psychological Reports. 33 (2), 467-470 (1973).</li><li>Green, K. F., Lee, D. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effects+of+centrifugal+rotation+on+analgesia+and+conditioned+flavor+aversions.">Effects of centrifugal rotation on analgesia and conditioned flavor aversions.</a> Physiology &amp; Behavior. 40 (2), 201-205 (1987).</li><li>Tse, Y. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Developmental+expression+of+NMDA+and+AMPA+receptor+subunits+in+vestibular+nuclear+neurons+that+encode+gravity-related+horizontal+orientations.">Developmental expression of NMDA and AMPA receptor subunits in vestibular nuclear neurons that encode gravity-related horizontal orientations.</a> Journal of Comparative Neurology. 508 (2), 343-364 (2008).</li><li>Lai, C. H., Tse, Y. C., Shum, D. K., Yung, K. K., Chan, Y. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Fos+expression+in+otolith-related+brainstem+neurons+of+postnatal+rats+following+off-vertical+axis+rotation.">Fos expression in otolith-related brainstem neurons of postnatal rats following off-vertical axis rotation.</a> Journal of Comparative Neurology. 470 (3), 282-296 (2004).</li><li>Lai, S. K., Lai, C. H., Yung, K. K., Shum, D. K., Chan, Y. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Maturation+of+otolith-related+brainstem+neurons+in+the+detection+of+vertical+linear+acceleration+in+rats.">Maturation of otolith-related brainstem neurons in the detection of vertical linear acceleration in rats.</a> European Journal of Neuroscience. 23 (9), 2431-2446 (2006).</li><li>Aitken, P., Zheng, Y., Smith, P. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ethovision+analysis+of+open+field+behaviour+in+rats+following+bilateral+vestibular+loss.">Ethovision analysis of open field behaviour in rats following bilateral vestibular loss.</a> Journal of Vestibular Research. 27 (2-3), 89-101 (2017).</li><li>Gao, V., Vitaterna, M. H., Turek, F. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Validation+of+video+motion-detection+scoring+of+forced+swim+test+in+mice.">Validation of video motion-detection scoring of forced swim test in mice.</a> Journal of Neuroscience Methods. 235, 59-64 (2014).</li><li>Lopes, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Bonsai:+an+event-based+framework+for+processing+and+controlling+data+streams.">Bonsai: an event-based framework for processing and controlling data streams.</a> Frontiers in Neuroinformatics. 9, 7 (2015).</li><li>Conder, G. A., Sedlacek, H. S., Boucher, J. F., Clemence, R. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Efficacy+and+safety+of+maropitant,+a+selective+neurokinin+1+receptor+antagonist,+in+two+randomized+clinical+trials+for+prevention+of+vomiting+due+to+motion+sickness+in+dogs.">Efficacy and safety of maropitant, a selective neurokinin 1 receptor antagonist, in two randomized clinical trials for prevention of vomiting due to motion sickness in dogs.</a> Journal of Veterinary Pharmacology and Therapeutics. 31, 528-532 (2008).</li><li>Percie du Sert, N., Chu, K. M., Wai, M. K., Rudd, J. A., Andrews, P. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Telemetry+in+a+motion-sickness+model+implicates+the+abdominal+vagus+in+motion-induced+gastric+dysrhythmia.">Telemetry in a motion-sickness model implicates the abdominal vagus in motion-induced gastric dysrhythmia.</a> Experimental Physiology. 95, 768-773 (2010).</li><li>Lackner, J. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Motion+sickness:+more+than+nausea+and+vomiting.">Motion sickness: more than nausea and vomiting.</a> Experimental Brain Research. 232, 2493-2510 (2014).</li><li>Lucot, J. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effects+of+naloxone+on+motion+sickness+in+cats+alone+and+with+broad+spectrum+antiemetics.">Effects of naloxone on motion sickness in cats alone and with broad spectrum antiemetics.</a> Autonomic Neuroscience. 202, 97-101 (2016).</li><li>McCaffrey, R. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Appropriateness+of+kaolin+consumption+as+an+index+of+motion+sickness+in+the+rat.">Appropriateness of kaolin consumption as an index of motion sickness in the rat.</a> Physiology &amp; Behavior. 35, 151-156 (1985).</li><li>Horn, C. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Why+can't+rodents+vomit?+A+comparative+behavioral,+anatomical,+and+physiological+study.">Why can't rodents vomit? A comparative behavioral, anatomical, and physiological study.</a> PLoS One. 8 (4), 60537 (2013).</li><li>Ossenkopp, K. -. P., Frisken, N. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Defecation+as+an+index+of+motion+sickness+in+the+rat.">Defecation as an index of motion sickness in the rat.</a> Physiological Psychology. 10, 355-360 (1982).</li><li>Ossenkopp, K. P., Rabi, Y. J., Eckel, L. A., Hargreaves, E. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Reductions+in+body+temperature+and+spontaneous+activity+in+rats+exposed+to+horizontal+rotation:+abolition+following+chemical+labyrinthectomy.">Reductions in body temperature and spontaneous activity in rats exposed to horizontal rotation: abolition following chemical labyrinthectomy.</a> Physiology &amp; Behavior. 56, 319-324 (1994).</li><li>Oman, C. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Motion+sickness:+a+synthesis+and+evaluation+of+the+sensory+conflict+theory.">Motion sickness: a synthesis and evaluation of the sensory conflict theory.</a> Canadian Journal of Physiology and Pharmacology. 68, 294-303 (1990).</li><li>Hu, D. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Emesis+in+the+shrew+mouse+(Suncus+murinus)+induced+by+peroral+and+intraperitoneal+administration+of+staphylococcal+enterotoxin+A.">Emesis in the shrew mouse (Suncus murinus) induced by peroral and intraperitoneal administration of staphylococcal enterotoxin A.</a> Journal of Food Protection. 62, 1350-1353 (1999).</li><li>Ueno, S., Matsuki, N., Saito, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Suncus+murinus+as+a+new+experimental+model+for+motion+sickness.">Suncus murinus as a new experimental model for motion sickness.</a> Life Sciences. 43, 413-420 (1988).</li></ol>

The authors declare no financial or non-financial conflicts of interests. The FWR device has a patent in China: ZL201120231912.1.

The present study describes assessing autonomic responses to passive motion in rodents using elevator vertical motion and Ferris-wheel rotation. These equipment and procedures can be easily adopted to other rodents and several modifications of the assays exist to confirm vestibular functioning in different circumstances, such as during in pharmacological challenge or surgical interventions. Research in MS elicited by vestibular stimulation has led to the theory that sensory conflict or neuronal mismatch caused by receivi...

Motion sickness (MS) due to abnormal visuo-vestibular stimulation leads to autonomic reaction, eliciting symptoms such epigastric discomfort, nausea and/or vomiting1. According to current theories, motion sickness may be caused by a sensory conflict or neuronal mismatch from receiving integrated motion information that differs from the anticipated internal model of the environment2,3 or postural instability as would occur on a yawing ship4,5. Despite significant advances in the field of motion sickness and vestibular autonomic functioning6,7,8,9,10,11,12, future research can be aided by standardized evaluation protocols. Assessing the autonomic effects of standard passive motions will greatly benefit investigations into the causes and prevention of motion sickness. The overall goal of this study is to assess the autonomic and behavioral effects of passive motion in rodents. Animal models, such as rodents, allow easy experimental manipulation (e.g., passive motion and pharmaceutical) and behavioral evaluation, which can be used to study the etiology of motion sickness. Here, we present a detailed battery for testing the effects of passive motion and the integrity of vestibular functioning.
The present study details two assays, elevator vertical motion (EVM) and Ferris-wheel rotation (FWR), that induce autonomic reactions to the passive motion. The assays are coupled to three quantitative behavioral measures, the balance beam (on mice13 and rats14,15,16,17), open-field examination, and defecation counting. The EVM (similar to the pitch and roll of a ship encountering a wave) assesses vestibular functioning by stimulating the otolith sensory organs that encode linear accelerations (i.e., the saccule that responds to movements in the vertical plane)18. The FWR (centrifugal rotation or sinusoidal motion) device stimulates the otolith organs by linear acceleration and the semicircular canals by angular acceleration19,20. The Ferris-wheel/centrifugal rotation device is unique in its autonomic assessment. To date, the only similar device in the literature is the off-vertical axis rotation (OVAR) turntable, which is used to examine the vestibulo-ocular reflex (VOR)18,21,22, conditioned avoidance23,24, and the effects of hypergravity25,26,27. The EVM assay and the FWR device assay induce vestibular stimulation leading to autonomic reactions. We couple the EVM and FWR to quantitative measurements such as balance beam, defecation counting, and open-field analysis28,29,30, to ensure robust and reproducible results. Similar to those previously described in mice13 and rats14,15,16,17, the balance beam assay is a 1.0 m long beam suspended 0.75 m from the ground between two wooden stools using a simple black-box modification at the goal end (finish). The balance beam has been used to assess anxiety (obscure black box)14,17, traumatic injury15,16,17, and here, autonomic reactions affecting balance. We have performed defecation counting for assessing the autonomic response in the motion sickness model previously, and it is a reliable quantitative measurement that is easily performed and unequivocally assessed6,8,9,11. The open-field analysis employs a simple black box open-&#64257;eld behavior assessment using Ethovision28, Bonsai30, or a simple video analysis in Matlab29 to quantify behavior such as motion. In the current protocol, we use the total distance traveled, but we note several different paradigms exist (e.g., elongation, zone of movement, velocity, etc.)28,29,30. Collectively, these procedures form a short battery of assessments for the examination and evaluation of autonomic reactions to passive motion, for example in motion sickness6,7,8,9,10,11. The present assays can be adapted to a variety of animal models.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>Elevator vertical motion device</td>
			<td>Custom</td>
			<td></td>
			<td>Custom-made Elevator vertical motion device to desired specifications</td>
		</tr>
		<tr>
			<td>Ethovision</td>
			<td>Noldus Information Technology</td>
			<td></td>
			<td>Video tracking software</td>
		</tr>
		<tr>
			<td>Ferris-wheel rotation device</td>
			<td>Custom</td>
			<td></td>
			<td>Custom-made Ferris-wheel rotation device to desired specifications</td>
		</tr>
		<tr>
			<td>Latex, polyvinyl or nitrile gloves</td>
			<td>AMMEX</td>
			<td></td>
			<td>Use unpowdered gloves 8-mil</td>
		</tr>
		<tr>
			<td>Open field box</td>
			<td>Custom</td>
			<td></td>
			<td>Darkened plexiglass box with IR camera</td>
		</tr>
		<tr>
			<td>Rat or mouse</td>
			<td>JAX labs</td>
			<td></td>
			<td>Any small rodent</td>
		</tr>
		<tr>
			<td>Small rodent cage</td>
			<td>Tecniplast</td>
			<td>1284L</td>
			<td></td>
		</tr>
		<tr>
			<td>Wooden beam and stools</td>
			<td>Custom</td>
			<td></td>
			<td>Custom-made wooden beam and stools to specifications indicated</td>
		</tr>
	</tbody>
</table>

assessing the autonomic and behavioral effects of passive motion in rats using elevator vertical motion and ferris-wheel rotation

The overall goal of this study is to assess the autonomic and behavioral effects of passive motion in rodents using the elevator vertical motion and Ferris-wheel rotation devices. These assays can help confirm the integrity and normal functioning of the autonomic nervous system. They are coupled to quantitative measures based on defecation counting, open-field examination, and balance beam crossing. The advantages of these assays are their simplicity, reproducibility, and quantitative behavioral measures. The limitations of these assays are that the autonomic reactions could be epiphenomena of non-vestibular disorders and that a functioning vestibular system is required. Examination of disorders such as motion sickness will be greatly aided by the detailed procedures of these assays.

Figure 2 demonstrates representative balance beam results of time taken to transverse. Rats were trained for 3 consecutive days in order to achieve stable performance on the balance beam10. The subsequent day, rats were evaluated for balance beam performance. In the y-axis of the figure, we have the number of seconds taken for rodents to cross the balance beam for Ferris-wheel, elevator vertical motion, and control groups for demonstrative purposes.
<p class="jove...

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Assessing the Autonomic and Behavioral Effects of Passive Motion in Rats using Elevator Vertical Motion and Ferris-Wheel Rotation

Protocols are presented to assess the autonomic and behavioral effects of passive motion in rodents using elevator vertical motion and Ferris-wheel rotation.

The overall goal of this study is to assess the autonomic and behavioral effects of passive motion in rodents using the elevator vertical motion and ...

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6.1K 조회수.  University of Sydney. Protocols are presented to assess the autonomic and behavioral effects of passive motion in rodents using elevator vertical motion and Ferris-wheel rotation.

비디오: Assessing the Autonomic and Behavioral Effects of Passive Motion in Rats using Elevator Vertical Motion and Ferris-Wheel Rotation

A Procedure to Observe Context-induced Renewal of Pavlovian-conditioned Alcohol-seeking Behavior in Rats

Environmental contexts in which drugs of abuse are consumed can trigger craving, a subjective Pavlovian-conditioned response that can facilitate drug-seeking behavior and prompt relapse in abstinent drug users. We have developed a procedure to study the behavioral and neural processes that mediate the impact of context on alcohol-seeking behavior in rats. Following acclimation to the taste and pharmacological effects of 15% ethanol in the home cage, male Long-Evans rats receive Pavlovian discrimination training (PDT) in conditioning chambers. In each daily (Mon-Fri) PDT session, 16 trials each of two different 10 sec auditory conditioned stimuli occur. During one stimulus, the CS+, 0.2 ml of 15% ethanol is delivered into a fluid port for oral consumption. The second stimulus, the CS-, is not paired with ethanol. Across sessions, entries into the fluid port during the CS+ increase, whereas entries during the CS- stabilize at a lower level, indicating that a predictive association between the CS+ and ethanol is acquired. During PDT each chamber is equipped with a specific configuration of visual, olfactory and tactile contextual stimuli. Following PDT, extinction training is conducted in the same chamber that is now equipped with a different configuration of contextual stimuli. The CS+ and CS- are presented as before, but ethanol is withheld, which causes a gradual decline in port entries during the CS+. At test, rats are placed back into the PDT context and presented with the CS+ and CS- as before, but without ethanol. This manipulation triggers a robust and selective increase in the number of port entries made during the alcohol predictive CS+, with no change in responding during the CS-. This effect, referred to as context-induced renewal, illustrates the powerful capacity of contexts associated with alcohol consumption to stimulate alcohol-seeking behavior in response to Pavlovian alcohol cues.

A procedure to study the capacity of an alcohol associated environmental context to trigger the renewal of alcohol-seeking behavior in rats is described.

절차 흰쥐의 파블로프 에어컨 알코올 추구 행동의 상황에 의한 갱신을 준수합니다

Environmental contexts in which drugs of abuse are consumed can trigger craving, a subjective Pavlovian-conditioned response that can facilitate ...

연구

행동분석학

Operant Procedures for Assessing Behavioral Flexibility in Rats

Executive functions consist of multiple high-level cognitive processes that drive rule generation and behavioral selection. An emergent property of these processes is the ability to adjust behavior in response to changes in one&#8217;s environment (i.e., behavioral flexibility). These processes are essential to normal human behavior, and may be disrupted in diverse neuropsychiatric conditions, including schizophrenia, alcoholism, depression, stroke, and Alzheimer&#8217;s disease. Understanding of the neurobiology of executive functions has been greatly advanced by the availability of animal tasks for assessing discrete components of behavioral flexibility, particularly strategy shifting and reversal learning. While several types of tasks have been developed, most are non-automated, labor intensive, and allow testing of only one animal at a time. The recent development of automated, operant-based tasks for assessing behavioral flexibility streamlines testing, standardizes stimulus presentation and data recording, and dramatically improves throughput. Here, we describe automated strategy shifting and reversal tasks, using operant chambers controlled by custom written software programs. Using these tasks, we have shown that the medial prefrontal cortex governs strategy shifting but not reversal learning in the rat, similar to the dissociation observed in humans. Moreover, animals with a neonatal hippocampal lesion, a neurodevelopmental model of schizophrenia, are selectively impaired on the strategy shifting task but not the reversal task. The strategy shifting task also allows the identification of separate types of performance errors, each of which is attributable to distinct neural substrates. The availability of these automated tasks, and the evidence supporting the dissociable contributions of separate prefrontal areas, makes them particularly well-suited assays for the investigation of basic neurobiological processes as well as drug discovery and screening in disease models.

The ability to assess executive functions such as behavioral flexibility in rats is useful for investigating the neurobiology of cognition in both intact animals and disease models. Here we describe automated tasks for assessing strategy shifting and reversal learning, which are particularly sensitive to disruptions in prefrontal cortical networks.

쥐의 행동 유연성을 평가하기위한 조작 적 절차

Executive functions consist of multiple high-level cognitive processes that drive rule generation and behavioral selection. An emergent property of these ...

How to Study Placebo Responses in Motion Sickness with a Rotation Chair Paradigm in Healthy Participants

Placebo responses occur in every medical intervention when patients or participants expect to receive an effective treatment to relieve symptoms. However, underlying mechanisms of placebo responses are not fully understood. It has repeatedly been shown that placebo responses are associated with changes in neural activity but for many conditions it is unclear whether they also affect the target organ, such as the stomach in motion sickness. Therefore, we present a methodology for the multivariate assessment of placebo responses by subjective, behavioral and objective measures in motion sickness with a rotation chair paradigm. The physiological correlate of motion sickness is a shift in gastric myoelectrical activity towards tachygastria that can be recorded with electrogastrography. The presented study applied the so-called balanced placebo design (BPD) to investigate the effects of ginger compared to placebo and the effects of expectations by verbal information. However, the study revealed no significant main or interactional effects of ginger (as a drug) or information on outcome measures but showed interactions when sex of participants and experimenters are taken into considerations. We discuss limitations of the presented study and report modifications that were used in subsequent studies demonstrating placebo responses when rotation speed was lowered. In general, future placebo studies have to identify the appropriate target organ for the studied placebo responses and to apply the specific methods to assess the physiological correlates.

An experimental rotation chair paradigm is used to investigate whether a placebo intervention on motion sickness affects subjective outcome measures only or also affects behavioral and objective measures in a balanced placebo design.

건강한 참가자의 회전 의자 패러다임과 멀미에 위약 응답을 공부하는 방법

Placebo responses occur in every medical intervention when patients or participants expect to receive an effective treatment to relieve symptoms. However, ...

Multifunctional Setup for Studying Human Motor Control Using Transcranial Magnetic Stimulation, Electromyography, Motion Capture, and Virtual Reality

The study of neuromuscular control of movement in humans is accomplished with numerous technologies. Non-invasive methods for investigating neuromuscular function include transcranial magnetic stimulation, electromyography, and three-dimensional motion capture. The advent of readily available and cost-effective virtual reality solutions has expanded the capabilities of researchers in recreating &#8220;real-world&#8221; environments and movements in a laboratory setting. Naturalistic movement analysis will not only garner a greater understanding of motor control in healthy individuals, but also permit the design of experiments and rehabilitation strategies that target specific motor impairments (e.g. stroke). The combined use of these tools will lead to increasingly deeper understanding of neural mechanisms of motor control. A key requirement when combining these data acquisition systems is fine temporal correspondence between the various data streams. This protocol describes a multifunctional system&#8217;s overall connectivity, intersystem signaling, and the temporal synchronization of recorded data. Synchronization of the component systems is primarily accomplished through the use of a customizable circuit, readily made with off the shelf components and minimal electronics assembly skills.

Transcranial magnetic stimulation, electromyography, and 3D motion capture are commonly used non-invasive techniques for investigating neuromuscular function in humans. In this paper, we describe a protocol that synchronously samples data generated by all three of these tools along with the unique addition of virtual reality stimulus presentation and feedback.

경 두개 자기 자극, 근전도, 모션 캡쳐, 가상 현실을 이용하여 인간의 모터 제어 유학을위한 다기능 설치

The study of neuromuscular control of movement in humans is accomplished with numerous technologies. Non-invasive methods for investigating neuromuscular ...

Substantiating Appropriate Motion Capture Techniques for the Assessment of Nordic Walking Gait and Posture in Older Adults

Nordic walking (NW) has become a safe and simple form of exercise in recent years, and in studying this gait pattern, various data collection techniques have been employed, each with positives and negatives. The aim was to determine the effect of NW on older adult gait and posture and to determine optimal use of different data collection systems in both short and long duration analysis. Gait and posture during NW and normal walking were assessed in 17 healthy older adults (age: 69 &#177; 7.3). Participants performed two trials of 6 Minute Walk Tests (6MWT) (1 with poles (WP) and 1 without poles (NP)) and 6 trials of a 5m walk (3 WP and 3 NP). Motion was recorded using two systems, a 6-sensor accelerometry system and an 8-camera 3-dimensional motion capture system, in order to quantify spatial-temporal, kinematic, and kinetic parameters.
With both systems, participants demonstrated increased stride length and double support and decreased gait speed and cadence WP compared to NP (p &#60;0.05). Also, with motion capture, larger single support time was found WP (p &#60;0.05). With 3-D capture, smaller hip power generation and moments of force were found at heel contact and pre-swing as well as smaller knee power absorption at heel contact, pre-swing, and terminal swing WP compared to NP, when assessed over one cycle (p &#60;0.05). Also, WP yielded smaller moments of force at heel contact and terminal swing along with larger moments at mid-stance of a gait cycle (p &#60;0.05). No changes were found for posture.
NW seems appropriate for promoting a normal gait pattern in older adults. Three-dimensional motion capture should primarily be used during short duration gait analysis (i.e. single gait cycle), while accelerometry systems should be primarily employed in instances requiring longer duration analysis such as during the 6MWT.

The aim was to substantiate optimal use of data collection techniques for Nordic walking gait and posture analysis. Three-dimensional motion capture should be used during short duration analysis (i.e. single gait cycle), while accelerometry should be employed for longer duration analysis (i.e. repeated cycles) like a 6 Minute Walk Test.

이전 성인의 노르딕 워킹 보행의 평가와 자세에 대한 적절한 모션 캡처 기술을 실증

Nordic walking (NW) has become a safe and simple form of exercise in recent years, and in studying this gait pattern, various data collection techniques ...

Visualizing Motion Patterns in Acupuncture Manipulation

Acupuncture manipulation varies widely among practitioners in clinical settings, and it is difficult to teach novice students how to perform acupuncture manipulation techniques skillfully. The Acupuncture Manipulation Education System (AMES) is an open source software system designed to enhance acupuncture manipulation skills using visual feedback. Using a phantom acupoint and motion sensor, our method for acupuncture manipulation training provides visual feedback regarding the actual movement of the student's acupuncture manipulation in addition to the optimal or intended movement, regardless of whether the manipulation skill is lifting, thrusting, or rotating. Our results show that students could enhance their manipulation skills by training using this method. This video shows the process of manufacturing phantom acupoints and discusses several issues that may require the attention of individuals interested in creating phantom acupoints or operating this system.

Here, we present a protocol for using the Acupuncture Manipulation Education System (AMES) in the training of acupuncture manipulation skills using phantom acupoints.

침술 조작에 모션 패턴을 시각화

Acupuncture manipulation varies widely among practitioners in clinical settings, and it is difficult to teach novice students how to perform acupuncture ...

The Rodent Psychomotor Vigilance Test (rPVT): A Method for Assessing Neurobehavioral Performance in Rats and Mice

The human Psychomotor Vigilance Test (PVT) is a widely used procedure for measuring changes in fatigue and sustained attention. The present article describes a rodent version of the PVT&#8212;termed the &#34;rPVT&#34;&#8212;that measures similar aspects of attention (i.e., performance accuracy, motor speed, premature responding, and lapses in attention). Data are presented that demonstrate both the short- and long-term usefulness of the rPVT when employed with laboratory rats. Rats easily learn the rPVT, and learning to perform the basic procedure takes less than two weeks of training. Once acquired, rat performances in the rPVT show a high degree of similarity to these same performance measures in the human PVT, including similarities in, lapses in attention, reaction times, vigilance decrements across session time (i.e., the human &#34;time-on-task&#34; effects), and the response-stimulus interval (RSI) effect described for humans. Thus the rPVT can be an extremely valuable tool for assessing the effects of a wide range of variables on sustained attention quite similar to human PVT performances, and thus can be useful for developing novel treatments for neurobehavioral dysfunctions.

The Rodent Psychomotor Vigilance Test rPVT: A Method for Assessing Neurobehavioral Performance in Rats and Mice

A rat version of the human Psychomotor Vigilance Test (PVT) is described that measures aspects of attention similar to those measured with the human PVT, including aspects of human vigilance such as performance accuracy, motor speed, premature responding, and lapses in attention.

설치류 심리 운동 경계 시험 (rPVT) : 쥐에서 신경 행동 학적 성능을 평가하는 방법

The human Psychomotor Vigilance Test (PVT) is a widely used procedure for measuring changes in fatigue and sustained attention. The present article ...

Behavioral Disturbances: An Innovative Approach to Monitor the Modulatory Effects of a Nutraceutical Diet

In dogs, diets are often used to modulate behavioral disturbances related to chronic anxiety and stress caused by intense and restless activity. However, the traditional ways to monitor behavioral changes in dogs are complicated and not efficient. In the current clinical evaluation, a new, simple monitoring system was used to assess the effectiveness of a specific diet in positively modulating the intense and restless activity of 24 dogs of different ages and breeds. This protocol describes how to easily and rapidly evaluate improvement in a set of symptoms related to generalized anxiety by using a specific sensor, a mobile phone app, a wireless router, and a computer. The results showed that dogs treated with specific diets showed significant improvement in the times spent active and at rest after 10 days (p &lt; 0.01 and p &lt; 0.05, respectively). These dogs also showed an overall significant improvement in clinical and behavioral symptoms. A specific sensor, along with its related hardware, was demonstrated to successfully monitor behavioral changes relating to movement in dogs.

We report a simple approach to evaluate the effectiveness of a specific diet in positively modulating the daily activity and clinical and behavioral symptoms of dogs with evident behavioral disturbances.

행동 교란하십시오 기능 식품 다이어트의 조절 성 효과를 모니터하는 혁신적인 접근 방식

In dogs, diets are often used to modulate behavioral disturbances related to chronic anxiety and stress caused by intense and restless activity. However, ...

A Wireless, Bidirectional Interface for In Vivo Recording and Stimulation of Neural Activity in Freely Behaving Rats

In vivo electrophysiology is a powerful technique to investigate the relationship between brain activity and behavior at a millisecond and micrometer scale. However, current methods mostly rely on tethered cable recordings or only use unidirectional systems, allowing either recording or stimulation of neural activity, but not at the same time or same target. Here, a new wireless, bidirectional device for simultaneous multichannel recording and stimulation of neural activity in freely behaving rats is described. The system operates through a single portable head stage that both transmits recorded activity and can be targeted in real-time for brain stimulation using a telemetry-based multichannel software. The head stage is equipped with a preamplifier and a rechargeable battery, allowing stable long-term recordings or stimulation for up to 1 h. Importantly, the head stage is compact, weighs 12 g (including battery) and thus has minimal impact on the animal&#180;s behavioral repertoire, making the method applicable to a broad set of behavioral tasks. Moreover, the method has the major advantage that the effect of brain stimulation on neural activity and behavior can be measured simultaneously, providing a tool to assess the causal relationships between specific brain activation patterns and behavior. This feature makes the method particularly valuable for the field of deep brain stimulation, allowing precise assessment, monitoring, and adjustment of stimulation parameters during long-term behavioral experiments. The applicability of the system has been validated using the inferior colliculus as a model structure.

A Wireless, Bidirectional Interface for In Vivo Recording and Stimulation of Neural Activity in Freely Behaving Rats

A wireless, bidirectional system for multi-channel neural recordings and stimulation in freely behaving rats is introduced. The system is light and compact, thus having minimal impact on the animal&#180;s behavioral repertoire. Moreover, this bidirectional system provides a sophisticated tool to assess causal relationships between brain activation patterns and behavior.

무선, Vivo에서 녹음 하 고 자유롭게 행동 하는 쥐에서 신경 활동의 자극에 대 한 양방향 인터페이스

In vivo electrophysiology is a powerful technique to investigate the relationship between brain activity and behavior at a millisecond and micrometer ...

Measuring Active and Passive Tameness Separately in Mice

Domesticated animals such as dogs and laboratory mice show a high level of tameness, which is important for humans to handle them easily. Tameness has two behavioral components: a reluctance to avoid humans (passive tameness) and a motivation to approach humans (active tameness). To quantify these components in mice, we previously developed behavioral tests for active tameness, passive tameness, and the willingness to stay on a human hand, each designed to be completed within 3 min. The data obtained were used for selective breeding, with a large number of mice analyzed per generation. The active tameness test measures the movement of the mouse toward a human hand and the contact it engages in. The passive tameness test measures the duration of time that a mouse tolerates human touch. In the stay-on-hand test, a mouse is placed on a human hand and touched slowly using the thumb of that hand; the duration of time that the animal remains on the hand is measured. Here, we describe the test set-up and apparatus, explain the procedures, and discuss the appropriate data analysis. Finally, we explain how to interpret the results.

Tameness in animals includes a reduction of avoidance responses to humans (passive tameness) and an increase in active approaches to humans (active tameness). Here, we describe detailed protocols for three behavioral tests (active tameness, passive tameness, and stay-on-hand tests) to separately measure the active and passive tameness of mice.

마우스에서 별도로 측정 능동 및 수동 Tameness

Domesticated animals such as dogs and laboratory mice show a high level of tameness, which is important for humans to handle them easily. Tameness has two ...