עבודה זו נתמכה על ידי אסתר ויוסף Klingenstein הקרן, קרן מק &#39;נייט הקרן, וNINDS 1R01NS066408-01A1.

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Neurosci. 25 (3), 652-661 (2005).</li><li>Yamamoto, J., Wilson, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Large-scale+chronically+implantable+precision+motorized+microdrive+array+for+freely+behaving+animals.">Large-scale chronically implantable precision motorized microdrive array for freely behaving animals.</a> J. Neurophysiol. 100 (4), 2430-2440 (2008).</li><li>Fee, M. S., Leonardo, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Miniature+motorized+microdrive+and+commutator+system+for+chronic+neural+recording+in+small+animals.">Miniature motorized microdrive and commutator system for chronic neural recording in small animals.</a> J. Neurosci. Methods. 112, 83-94 (2001).</li><li>&#214;lveczky, B. P., Otchy, T. M., Goldberg, J. H., Aronov, D., Fee, M. 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הפרוטוקול המובא כאן יביא מכשיר מסוגל הקלטות באיכות גבוהה עם ממצאי תנועה מינימאליים רק אם טיפול הולם היא נלקחה עם הבנייה. אם חשיבות קריטית ההתקף של המעבורת במארז: הדוקה מדי ואת הסיכון לעומס המנוע הוא גבוה; רופף מדי והסיכון לחפץ תנועה משמעותי הוא גבוהה. כושר אידיאלי יא?...

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design and assembly of an ultra-light motorized microdrive for chronic neural recordings in small animals

היכולת כרונית להקליט מאוכלוסיות של נוירונים בחיות באופן חופשי מתנהגות הוכיחה כלי רבת ערך עבור לנתח את הפונקציה של מעגלים עצביים העומדים בבסיס מגוון רחב של התנהגויות טבעיות, כולל 1 ניווט, קבלת החלטות 2,3, והדור של רצפים מוטוריים מורכבים 4 , 5,6. התקדמות בעיבוד הדיוק אפשרה לייצור של מכשירים קלי משקל מתאימים להקלטות כרוניות בבעלי חיים קטנים, כגון עכברים וציפוריים שיר. היכולת להתאים את המיקום האלקטרודה עם מנועים קטנים הנשלטים מרחוק הגדילה עוד יותר את תשואת ההקלטה בהקשרים התנהגותיים שונים על ידי צמצום טיפול בעלי חיים. 6,7 כאן אנו מתארים פרוטוקול לבנות microdrive ממונע קל במיוחד עבור הקלטות כרוניות ארוכות טווח בבעלי חיים קטנים. העיצוב שלנו התפתח מגרסה 7 שפורסם קודם לכן, והותאם לקלויות שימוש והעלות effectiveness להיות מעשי יותר ונגיש למגוון רחב של חוקרים. עיצוב 8,9,10,11 זה מוכח מאפשר למיצוב בסדר, מרחוק של אלקטרודות על פני טווח של ~ 5 מ&quot;מ ושוקל פחות מ 750 מ&quot;ג כאשר הורכב במלואו. אנו מציגים את הפרוטוקול המלא ל איך לבנות ולהרכיב כוננים אלה, כוללים שרטוטי 3D CAD לכל רכיבי Microdrive המותאמים אישית.

Watch this Scientific Journal Video about Design and Assembly of an Ultra-light Motorized Microdrive for Chronic Neural Recordings in Small Animals at JoVE.com

Design and Assembly of an Ultra-light Motorized Microdrive for Chronic Neural Recordings in Small Animals

העיצוב, הייצור וההרכבה של ממונע microdrive קל במיוחד הוא תאר. המכשיר מספק פתרון חסכוני וקל לשימוש, עבור הקלטות כרוניות של יחידות בודדות בחיות מתנהגות קטנות.

תכנון והרכבה של Microdrive קל במיוחד ממונע להקלטות עצביות כרוניות בבעלי חיים קטנים

The ability to chronically record from populations of neurons in freely behaving animals has proven an invaluable tool for dissecting the function of ...

design-assembly-an-ultra-light-motorized-microdrive-for-chronic

Research

JoVE Journal

Neuroscience

12.0K Views.  Harvard University. העיצוב, הייצור וההרכבה של ממונע microdrive קל במיוחד הוא תאר. המכשיר מספק פתרון חסכוני וקל לשימוש, עבור הקלטות כרוניות של יחידות בודדות בחיות מתנהגות קטנות.

Video: Design and Assembly of an Ultra-light Motorized Microdrive for Chronic Neural Recordings in Small Animals

Construction of Microdrive Arrays for Chronic Neural Recordings in Awake Behaving Mice

State-of-the-art electrophysiological recordings from the brains of freely behaving animals allow researchers to simultaneously examine local field potentials (LFPs) from populations of neurons and action potentials from individual cells, as the animal engages in experimentally relevant tasks. Chronically implanted microdrives allow for brain recordings to last over periods of several weeks. Miniaturized drives and lightweight components allow for these long-term recordings to occur in small mammals, such as mice. By using tetrodes, which consist of tightly braided bundles of four electrodes in which each wire has a diameter of 12.5 &mu;m, it is possible to isolate physiologically active neurons in superficial brain regions such as the cerebral cortex, dorsal hippocampus, and subiculum, as well as deeper regions such as the striatum and the amygdala. Moreover, this technique insures stable, high-fidelity neural recordings as the animal is challenged with a variety of behavioral tasks. This manuscript describes several techniques that have been optimized to record from the mouse brain. First, we show how to fabricate tetrodes, load them into driveable tubes, and gold-plate their tips in order to reduce their impedance from M&Omega; to K&Omega; range. Second, we show how to construct a custom microdrive assembly for carrying and moving the tetrodes vertically, with the use of inexpensive materials. Third, we show the steps for assembling a commercially available microdrive (Neuralynx VersaDrive) that is designed to carry independently movable tetrodes. Finally, we present representative results of local field potentials and single-unit signals obtained in the dorsal subiculum of mice. These techniques can be easily modified to accommodate different types of electrode arrays and recording schemes in the mouse brain.

The design and assembly of microdrives for in vivo electrophysiological recordings of brain signals from the mouse is described. By attaching microelectrode bundles to sturdy driveable carriers, these techniques allow for long-term and stable neural recordings. The lightweight design allows for unrestricted behavioral performance by the animal following drive implantation.

בנייה של מערכי Microdrive להקלטות עצביות כרוניות בעכברים מתנהגים ערים

State-of-the-art electrophysiological recordings from the brains of freely behaving animals allow researchers to simultaneously examine local field ...

Behavior

Large-scale Recording of Neurons by Movable Silicon Probes in Behaving Rodents

A major challenge in neuroscience is linking behavior to the collective activity of neural assemblies. Understanding of input-output relationships of neurons and circuits requires methods with the spatial selectivity and temporal resolution appropriate for mechanistic analysis of neural ensembles in the behaving animal, i.e. recording of representatively large samples of isolated single neurons. Ensemble monitoring of neuronal activity has progressed remarkably in the past decade in both small and large-brained animals, including human subjects1-11. Multiple-site recording with silicon-based devices are particularly effective because of their scalability, small volume and geometric design.
Here, we describe methods for recording multiple single neurons and local field potential in behaving rodents, using commercially available micro-machined silicon probes with custom-made accessory components. There are two basic options for interfacing silicon probes to preamplifiers: printed circuit boards and flexible cables. Probe supplying companies (<a href="http://www.neuronexustech.com/" >http://www.neuronexustech.com/</a>; <a href="http://www.sbmicrosystems.com/">http://www.sbmicrosystems.com/</a>; <a href="http://www.acreo.se/">http://www.acreo.se/</a>) usually provide the bonding service and deliver probes bonded to printed circuit boards or flexible cables. Here, we describe the implantation of a 4-shank, 32-site probe attached to flexible polyimide cable, and mounted on a movable microdrive. Each step of the probe preparation, microdrive construction and surgery is illustrated so that the end user can easily replicate the process.

We describe methods for large-scale recording of multiple single units and local field potential in behaving rodents with silicon probes. Drive fabrication, probe attachment to the drive and probe implantation processes are illustrated in sufficient details for easy replication.

בקנה מידה גדול הקלטה של ​​הנוירונים על ידי בדיקות מטלטלין סיליקון מתנהג מכרסמים

A major challenge in neuroscience is linking behavior to the collective activity of neural assemblies. Understanding of input-output relationships of ...

Micro-drive Array for Chronic in vivo Recording: Drive Fabrication

Chronic recording of large populations of neurons is a valuable technique for studying the function of neuronal circuits in awake behaving rats. Lightweight recording devices carrying a high density array of tetrodes allow for the simultaneous monitoring of the activity of tens to hundreds of individual neurons. Here we describe a protocol for the fabrication of a micro-drive array with twenty one independently movable micro-drives. This device has been used successfully to record from hippocampal and cortical neurons in our lab. We show how to prepare a custom designed, 3-D printed plastic base that will hold the micro-drives. We demonstrate how to construct the individual micro-drives and how to assemble the complete micro-drive array. Further preparation of the drive array for surgical implantation, such as the fabrication of tetrodes, loading of tetrodes into the drive array and gold-plating, is covered in a subsequent video article.

Micro-drive Array for Chronic in vivo Recording: Drive Fabrication

In this protocol we demonstrate how to fabricate a micro-drive array for chronic electrophysiological recordings in rats.

Micro-Drive Array עבור כרונית In vivo</emהקלטה>: כונן ייצור

Chronic recording of large populations of neurons is a valuable technique for studying the function of neuronal circuits in awake behaving rats. ...

Biology

Micro-drive Array for Chronic in vivo Recording: Tetrode Assembly

The tetrode, a bundle of four electrodes, has proven to be a valuable tool for the simultaneous recording of multiple neurons in-vivo.  The differential amplitude of action potential signatures over the channels of a tetrode allows for the isolation of single-unit activity from multi-unit signals.  The ability to precisely control the stereotaxic location and depth of the tetrode is critical for studying coordinated neural activity across brain regions.  In combination with a micro-drive array, it is possible to achieve precise placement and stable control of many tetrodes over the course of days to weeks.  In this protocol, we demonstrate how to fabricate and condition tetrodes using basic tools and materials, install the tetrodes into a multi-drive tetrode array for chronic in-vivo recording in the rat, make ground wire connections to the micro-drive array, and attach a protective cone onto the micro-drive array in order to protect the tetrodes from physical contact with the environment.



Micro-drive Array for Chronic in vivo Recording: Tetrode Assembly

In this protocol we demonstrate how to fabricate and condition tetrodes for use with a micro-drive array, which was designed for chronic electrophysiological recordings in rats. In addition, we illustrate the final stages of micro-drive array construction, which includes installing ground wires and a protective cone.

Micro-Drive Array עבור כרונית In vivo</emהקלטה>: Tetrode האסיפה

The tetrode, a bundle of four electrodes, has proven to be a valuable tool for the simultaneous recording of multiple neurons in-vivo.  The differential ...

Design and Fabrication of Ultralight Weight, Adjustable Multi-electrode Probes for Electrophysiological Recordings in Mice

The number of physiological investigations in the mouse, mus musculus, has experienced a recent surge, paralleling the growth in methods of genetic targeting for microcircuit dissection and disease modeling. The introduction of optogenetics, for example, has allowed for bidirectional manipulation of genetically-identified neurons, at an unprecedented temporal resolution. To capitalize on these tools and gain insight into dynamic interactions among brain microcircuits, it is essential that one has the ability to record from ensembles of neurons deep within the brain of this small rodent, in both head-fixed and freely behaving preparations. To record from deep structures and distinct cell layers requires a preparation that allows precise advancement of electrodes towards desired brain regions. To record neural ensembles, it is necessary that each electrode be independently movable, allowing the experimenter to resolve individual cells while leaving neighboring electrodes undisturbed. To do both in a freely behaving mouse requires an electrode drive that is lightweight, resilient, and highly customizable for targeting specific brain structures.
A technique for designing and fabricating miniature, ultralight weight, microdrive electrode arrays that are individually customizable and easily assembled from commercially available parts is presented. These devices are easily scalable and can be customized to the structure being targeted; it has been used successfully to record from thalamic and cortical regions in a freely behaving animal during natural behavior.

Understanding the neural substrates of behavior requires brain circuit ensemble recording. Because of its genetic tractability, the mouse offers a model for circuit dissection and disease mimicry. Here, a method of designing and fabricating miniaturized probes is described that is suitable for targeting deep brain structure in the mouse.

עיצוב וייצור של Ultralight משקל, בדיקות Multi-אלקטרודה מתכוונן לקלטות אלקטרו בעכברים

The number of physiological investigations in the mouse, mus musculus, has experienced a recent surge, paralleling the growth in methods of genetic ...

Construction of an Improved Multi-Tetrode Hyperdrive for Large-Scale Neural Recording in Behaving Rats

Monitoring the activity patterns of a large population of neurons over many days in awake animals is a valuable technique in the field of systems neuroscience. One key component of this technique consists of the precise placement of multiple electrodes into desired brain regions and the maintenance of their stability. Here, we describe a protocol for the construction of a 3D-printable hyperdrive, which includes eighteen independently adjustable tetrodes, and is specifically designed for in vivo extracellular neural recording in freely behaving rats. The tetrodes attached to the microdrives can either be individually advanced into multiple brain regions along the track, or can be used to place an array of electrodes into a smaller area. The multiple tetrodes allow for simultaneous examination of action potentials from dozens of individual neurons, as well as local field potentials from populations of neurons in the brain during active behavior. In addition, the design provides for simpler 3D drafting software that can easily be modified for differing experimental needs.

We present the construction of a 3D-printable hyperdrive with eighteen independently adjustable tetrodes. The hyperdrive is designed to record brain activity in freely behaving rats over a period of several weeks.

בניית הנעת Tetrode רב משופרת עבור הקלטת עצבית בקנה מידה גדול ב מתנהג חולדות

Monitoring the activity patterns of a large population of neurons over many days in awake animals is a valuable technique in the field of systems ...

Hybrid Microdrive System with Recoverable Opto-Silicon Probe and Tetrode for Dual-Site High Density Recording in Freely Moving Mice

Multi-regional neural recordings can provide crucial information to understanding fine-timescale interactions between multiple brain regions. However, conventional microdrive designs often only allow use of one type of electrode to record from single or multiple regions, limiting the yield of single-unit or depth profile recordings. It also often limits the ability to combine electrode recordings with optogenetic tools to target pathway and/or cell type specific activity. Presented here is a hybrid microdrive array for freely moving mice to optimize yield and a description of its fabrication and reuse of the microdrive array. The current design employs nine tetrodes and one opto-silicon probe implanted in two different brain areas simultaneously in freely moving mice. The tetrodes and the opto-silicon probe are independently adjustable along the dorsoventral axis in the brain to maximize the yield of unit and oscillatory activities. This microdrive array also incorporates a set-up for light, mediating optogenetic manipulation to investigate the regional- or cell type-specific responses and functions of long-range neural circuits. In addition, the opto-silicon probe can be safely recovered and reused after each experiment. Because the microdrive array consists of 3D-printed parts, the design of microdrives can be easily modified to accommodate various settings. First described is the design of the microdrive array and how to attach the optical fiber to a silicon probe for optogenetics experiments, followed by fabrication of the tetrode bundle and implantation of the array into a mouse brain. The recording of local field potentials and unit spiking combined with optogenetic stimulation also demonstrate feasibility of the microdrive array system in freely moving mice.

This protocol describes the construction of a hybrid microdrive array that allows implantation of nine independently adjustable tetrodes and one adjustable opto-silicon probe in two brain regions in freely moving mice. Also demonstrated is a method for safely recovering and reusing the opto-silicon probe for multiple purposes.

מערכת Microdrive היברידית עם בדיקה ההשבה Opto-סיליקון ו Tetrode עבור הקלטה כפול בצפיפות גבוהה בחופשיות העברת עכברים

Multi-regional neural recordings can provide crucial information to understanding fine-timescale interactions between multiple brain regions. However, ...

שתל מיקרו-דרייב לרישום פעילות עצבית יומיומית בעכברים צעירים

A Lightweight Drive Implant for Chronic Tetrode Recordings in Juvenile Mice

In vivo electrophysiology provides unparalleled insight into the sub-second-level circuit dynamics of the intact brain and represents a method of particular importance for studying mouse models of human neuropsychiatric disorders. However, such methods often require large cranial implants, which cannot be used in mice at early developmental time points. As such, virtually no studies of in vivo physiology have been performed in freely behaving infant or juvenile mice, despite the fact that a better understanding of neurological development in this critical window would likely provide unique insights into age-dependent developmental disorders such as autism or schizophrenia. Here, a micro-drive design, surgical implantation procedure, and post-surgery recovery strategy are described that allow for chronic field and single-unit recordings from multiple brain regions simultaneously in mice as they age from postnatal day 20 (p20) to postnatal day 60 (p60) and beyond, a time window roughly corresponding to the human ages of 2 years old through to adulthood. The number of recording electrodes and final recording sites can be easily modified and expanded, thus allowing flexible experimental control of the in vivo monitoring of behavior- or disease-relevant brain regions across development.

מחבר זרקור: שתל כונן קל משקל להקלטות טטרוד כרוניות בעכברים צעירים  

Here, we describe a micro-drive design, surgical implantation procedure, and post-surgery recovery strategy that allow for chronic field and single-unit recordings from multiple brain regions simultaneously in juvenile and adolescent mice across a critical developmental window from postnatal day 20 (p20) to postnatal day 60 (p60) and beyond.

תכנון והרכבה של Microdrive קל במיוחד ממונע להקלטות עצביות כרוניות בבעלי חיים קטנים

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בנייה של מערכי Microdrive להקלטות עצביות כרוניות בעכברים מתנהגים ערים

בקנה מידה גדול הקלטה של הנוירונים על ידי בדיקות מטלטלין סיליקון מתנהג מכרסמים

Micro-Drive Array עבור כרונית In vivo: כונן ייצור

Micro-Drive Array עבור כרונית In vivo: Tetrode האסיפה

עיצוב וייצור של Ultralight משקל, בדיקות Multi-אלקטרודה מתכוונן לקלטות אלקטרו בעכברים

בניית הנעת Tetrode רב משופרת עבור הקלטת עצבית בקנה מידה גדול ב מתנהג חולדות

מערכת Microdrive היברידית עם בדיקה ההשבה Opto-סיליקון ו Tetrode עבור הקלטה כפול בצפיפות גבוהה בחופשיות העברת עכברים

שתל כונן קל משקל לרישומי טטרוד כרוניים בעכברים צעירים

שתל כונן קל משקל לרישומי טטרוד כרוניים בעכברים צעירים

שתל כונן קל משקל לרישומי טטרוד כרוניים בעכברים צעירים

תכנון והרכבה של Microdrive קל במיוחד ממונע להקלטות עצביות כרוניות בבעלי חיים קטנים

Summary

Explore More Videos

Chapters in this video

בנייה של מערכי Microdrive להקלטות עצביות כרוניות בעכברים מתנהגים ערים

בקנה מידה גדול הקלטה של ​​הנוירונים על ידי בדיקות מטלטלין סיליקון מתנהג מכרסמים

Micro-Drive Array עבור כרונית In vivo: כונן ייצור

Micro-Drive Array עבור כרונית In vivo: Tetrode האסיפה

עיצוב וייצור של Ultralight משקל, בדיקות Multi-אלקטרודה מתכוונן לקלטות אלקטרו בעכברים

בניית הנעת Tetrode רב משופרת עבור הקלטת עצבית בקנה מידה גדול ב מתנהג חולדות

מערכת Microdrive היברידית עם בדיקה ההשבה Opto-סיליקון ו Tetrode עבור הקלטה כפול בצפיפות גבוהה בחופשיות העברת עכברים

שתל כונן קל משקל לרישומי טטרוד כרוניים בעכברים צעירים

שתל כונן קל משקל לרישומי טטרוד כרוניים בעכברים צעירים

שתל כונן קל משקל לרישומי טטרוד כרוניים בעכברים צעירים

בקנה מידה גדול הקלטה של הנוירונים על ידי בדיקות מטלטלין סיליקון מתנהג מכרסמים