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Abstract

Neuroscience

Wireless Electrophysiological Recording of Neurons by Movable Tetrodes in Freely Swimming Fish

Published: November 26th, 2019

DOI:

10.3791/60524

1Department of Biomedical Engineering, Ben-Gurion University of the Negev, 2Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, 3Department of Life Sciences, Ben-Gurion University of the Negev

* These authors contributed equally

Abstract

The neural mechanisms governing fish behavior remain mostly unknown, although fish constitute the majority of all vertebrates. The ability to record brain activity from freely moving fish would advance research on the neural basis of fish behavior considerably. Moreover, precise control of the recording location in the brain is critical to studying coordinated neural activity across regions in fish brain. Here, we present a technique that records wirelessly from the brain of freely swimming fish while controlling for the depth of the recording location. The system is based on a neural logger associated with a novel water-compatible implant that can adjust the recording location by microdrive-controlled tetrodes. The capabilities of the system are illustrated through recordings from the telencephalon of goldfish.

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Keywords Wireless Electrophysiological Recording

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