Name: determining ultrasonic vocalization preferences in mice using a two-choice playback test
Uploaded: 2015-09-03T15:00:00
Description: Watch this Scientific Journal Video about Determining Ultrasonic Vocalization Preferences in Mice using a Two-choice Playback Test at JoVE.com

Dit werk werd ondersteund door een Grant-in-Steun voor JSPS Fellows AA; door Grants-in-Steun voor Wetenschappelijk Onderzoek inzake innovatieve gebieden voor JSPS Fellows (nr 4501 en nr 25132712) naar TK; en door een onderzoek subsidie ​​van Azabu University. Figuur 2 is overgenomen uit Kihara, T., Harada, T., &amp; Koshida, N. Wafer-compatibele fabricage en eigenschappen van nanokristallijne silicium thermisch geïnduceerde ultrasone emitters. In: sensoren en actuatoren A: Fysiek, volume 125, Elsevier, p. 426, (2006), met toestemming van Elsevier.

<html> Alle procedures werden goedgekeurd door de ethische commissie van Azabu University. Alle experimenten werden uitgevoerd in een geluiddichte kamer uitgevoerd. 1. Dierlijke Voorbereiding <ol><li> Mannetjes voor opname <ol><li> Verkrijgen geslachtsrijpe mannelijke muizen ervaren in paring. </li></ol></li><li> Vrouwelijke proefpersonen <ol><li> Verkrijgen maagdelijke vrouwelijke muizen die werden ondergebracht met 2-5 nestgenoten per kooi (meestal 8-12 weken oud). </li><li> Verkrijgen va...

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Here, the results of a representative test showed that female mice can discriminate between artificial male USVs and background noise (Figure 3). The conclusion to be drawn from these results is that the discrimination signal is reflected in the duration of stay in the room and sound zone, and in the duration of searching the mesh in the first 5 min of testing, but not in the second 5 min (Figure 3C, E and F). These data indicate that mice become habituated to the playback sounds, possib...

Veel dieren gebruiken geluiden voor intraspecifieke communicatie. In de muis Mus musculus, een belangrijke vorm van communicatie signaal ultrasone geluiden (USVs), welke frequenties hoger dan 20 kHz. USVs uitgezonden door muizen worden beschouwd als een onderdeel van de sociale erkenning in man-vrouw 1-4, female-female 1, 5, en man-man 1, 6 interacties. USVs worden ook uitgestoten door pups wanneer ze geïsoleerd van hun moeder, die haar-pup ophalen gedrag toeneemt, en dus overleving van de jongen 7. Hoewel veel rapporten hebben geanalyseerd en gecategoriseerd muis USVs 8, 9, de gedragsreacties en neurale mechanismen van de ontvangende dieren zijn minder gedocumenteerd 10, 11. Dit laatste is noodzakelijk om de biologische significantie van de verschillende kenmerken van USVs verduidelijken. Om deze mechanismen onthullen de weergave experiment is een efficiënte methode. Recente afspelen studies hebben aangetoond dat vrouwelijkemuizen worden aangetrokken USVs 12, en dat ze liever USVs van mannetjes die verschillen van hun ouders 13, 14. Dit artikel legt de playback-test gebruikt om USV voorkeur in muizen te evalueren. Een twee-choice test box ontwikkeld waarbij twee verschillende USVs weer tegelijk kunnen worden gespeeld in twee compartimenten van een test behuizing, zoals weergegeven in figuur 1. Dit type test box voorkomt geluid besmetting door het testgebied verdelen in drie sub-kamers gebruik lead wanden. De ultrasone emitters bevinden zich buiten elke kamer. In de wand tussen de kamers en de ultrasone emitters gaten bedekt met gaas. Muizen kunnen vrij bewegen in de drie kamers, en tonen een &quot;zoeken de mazen&quot; gedrag, als om te reageren op USVs afgespeeld door de ultrasone emitters. In deze test muizen verblijven perioden van verschillende duur dichtbij een geluid emitter of andere. Deze parameters kunnen worden ingelogd zijn om een ​​gevoelige measu verkrijgen<html> re van geluid voorkeur. Om de USVs afspelen, nanokristallijne silicium thermo-akoestische zenders (dwz &quot;nc-Si emitter&quot;) werden gebruikt als in eerdere studies 15-17. Deze apparaten bestaan ​​uit een dunne-film verwarmer elektrode, een nanoporeuze siliciumlaag, en een kristallijne siliciumwafel. De digitaal geluidsbestand wordt geconverteerd naar een analoog signaal en vervolgens door de verwarmingselektrode. Het apparaat zet de resulterende voltage-afhankelijke thermische signalen in aanzienlijke geluidsdruk met een lage vervorming. Deze inrichting is uniek doordat, anders dan gewone geluidsgeneratoren die afhankelijk zijn van mechanische trillingen, kan het geluid reproduceren zonder de noodzaak van een diafragma. De zender vertoont een vlak geluidsdrukniveau bij frequenties 20-160 kHz (figuur 2), en kan digitaal opgenomen muizen USVs reproduceren zeer nauwkeurig in termen van duur, frequentie en geluidsdrukniveau 15, 18, ​​19. ve_content &quot;&gt; In een representatief experiment is getoond in figuur 3, werden C57BL / 6 (B6) vrouwtjes kunnen kiezen tussen BALB / c (BALB) mannelijke USVs en achtergrondruis. Bovendien Figuur 4 toont de keuze van B6 en BALB vrouwen tussen gelijktijdige USV playback van een BALB en B6 mannelijke, zoals gerapporteerd in een eerdere studie 14. De kenmerken van de mannelijke USVs verschillen tussen B6 en BALB stammen 20. Zoals blijkt uit deze resultaten, kan de aantrekkelijkheid van USVs worden beoordeeld met het huidige protocol, waarin geluiden worden opgenomen van een live individu, akoestisch geanalyseerd, en afgespeeld met andere individuen.

<table border="0" cellpadding="0" cellspacing="0">
	<tbody>
		<tr>
			<td>Soundproof chamber</td>
			<td>Muromachi Kikai</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Small cage</td>
			<td>CLEA Japan</td>
			<td>CL-0113-1</td>
			<td></td>
		</tr>
		<tr>
			<td>Middle cage</td>
			<td>CLEA Japan</td>
			<td>CL-0103-1</td>
			<td></td>
		</tr>
		<tr>
			<td>Ultrasound condenser microphones</td>
			<td>Avisoft Bioacoustics</td>
			<td>CM16/CMPA</td>
			<td></td>
		</tr>
		<tr>
			<td>A/D converter</td>
			<td>Avisoft Bioacoustics</td>
			<td>UltraSoundGate116H</td>
			<td></td>
		</tr>
		<tr>
			<td>Audio software</td>
			<td>Avisoft Bioacoustics</td>
			<td>RECORDER USGH</td>
			<td></td>
		</tr>
		<tr>
			<td>Adobe Audition 3.0 / Audio editing software</td>
			<td>Adobe Systems</td>
			<td>Adobe Audition 3.0</td>
			<td></td>
		</tr>
		<tr>
			<td>Nc-Si emitter</td>
			<td>Original</td>
			<td></td>
			<td>not commercially available but it is planned to be so in near future</td>
		</tr>
		<tr>
			<td>D/A converter</td>
			<td>National Instruments</td>
			<td>NI USB-6251 BNC</td>
			<td></td>
		</tr>
		<tr>
			<td>Attenuator</td>
			<td>Original</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Amplifier</td>
			<td>Yamatake</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>PC</td>
			<td>Windows 7 professional</td>
			<td></td>
			<td>Intel&#174; core i7-2600K CPU @ 3.4GHz, 8GB RAM, 64-bit operating system</td>
		</tr>
		<tr>
			<td>Event recorder Excel-macro / Event-scoring software</td>
			<td>original</td>
			<td></td>
			<td>Programmed by Naoto Akagawa &#38; Takeru Yamamoto</td>
		</tr>
		<tr>
			<td>CCD Camera</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Rubber plates (made of elastomer resin)</td>
			<td>Tokyo bouon</td>
			<td>TI-75BK B4</td>
			<td>Cut them to the proper size http://www.piano-bouon.jp/shopping/?pid=1329272401-447630&#38;ca=6&#38;p=3</td>
		</tr>
		<tr>
			<td>Giemsa&#39;s azur eosin methylene blue solution</td>
			<td>Merck Millipore</td>
			<td>1.09204.0500</td>
			<td></td>
		</tr>
	</tbody>
</table>

determining ultrasonic vocalization preferences in mice using a two-choice playback test

Mice emit ultrasonic vocalizations (USVs) during a variety of conditions, such as pup isolation and adult social interactions. These USVs differ with age, sex, condition, and genetic background of the emitting animal. Although many studies have characterized these differences, whether receiver mice can discriminate among objectively different USVs and show preferences for particular sound traits remains to be elucidated. To determine whether mice can discriminate between different characteristics of USVs, a playback experiment was developed recently, in which preference responses of mice to two different USVs could be evaluated in the form of a place preference.
First, USVs from mice were recorded. Then, the recorded USVs were edited, trimmed accordingly, and exported as stereophonic sound files. Next, the USV amplitudes generated by the two ultrasound emitters used in the experiment were adjusted to the same sound pressure level. Nanocrystalline silicon thermo-acoustic emitters were used to play the USVs back. Finally, to investigate the preference of subject mice to selected USVs, pairs of two differing USV signals were played back simultaneously in a two-choice test box. By repeatedly entering a defined zone near an ultrasound emitter and searching the wire mesh in front of the emitter, the mouse reveals its preference for one sound over another. This model allows comparing the attractiveness of the various features of mouse USVs, in various contexts.

De USVs opgenomen van een BALB-male (161 lettergrepen per 20 sec), en achtergrondgeluid werden als weergave geluiden in de representatief experiment is getoond in figuur 3. In dit experiment werden 7 vrouwelijke B6-muizen gebruikt 9 weken oud . Voor zover duur van het testen van vrouwelijke respons op geluid afspelen bepalen werden de gedragsparameters afzonderlijk geanalyseerd voor de eerste en laatste vijf minuten van het totaal 10 minuten testtijd. Ten eerste, was er geen...

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Determining Ultrasonic Vocalization Preferences in Mice using a Two-choice Playback Test

Ultrasonic vocalizations (USVs) in mice differ depending on age, sex, condition, and genetic background. Using two ultrasound emitters broadcasting simultaneously in different locations, this two-choice test can evaluate murine recognition and preference responses to different characteristics of USVs.

Het bepalen van Ultrasonic Vocalisatie Voorkeuren in Muizen met behulp van een twee-keuze afspelen Test

Mice emit ultrasonic vocalizations (USVs) during a variety of conditions, such as pup isolation and adult social interactions. These USVs differ with age, ...

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