Wireless electrophysiological recording of neurons by movable tetrodes in freely swimming fish

Lear Cohen, Ehud Vinepinsky, Ronen Segev

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article numbere60524
JournalJournal of Visualized Experiments
Issue number153
StatePublished - 1 Nov 2019


  • Electrophysiology
  • Extracellular space
  • Fish
  • Goldfish
  • Issue 153
  • Microdrive
  • Neuroscience
  • Pallium
  • Telencephalon
  • Wireless technology

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Chemical Engineering(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)


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