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Related Experiment Video

Updated: Mar 6, 2026

In vivo Optogenetic Stimulation of the Rodent Central Nervous System
09:37

In vivo Optogenetic Stimulation of the Rodent Central Nervous System

Published on: January 15, 2015

60.9K

Portable closed-loop optogenetic stimulation device.

Epsy S Edward, Abbas Z Kouzani, Rajas P Kale

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |March 9, 2017
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a portable, head-mountable device for closed-loop optogenetic stimulation in rodents. It enables real-time neural modulation based on detected neuronal activity for pre-clinical research.

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    Area of Science:

    • Neuroscience
    • Biomedical Engineering
    • Optogenetics

    Background:

    • Optogenetic stimulation allows precise control of neural activity.
    • Existing systems may lack portability or real-time closed-loop capabilities for small animal models.

    Purpose of the Study:

    • To develop a self-contained, head-mountable device for closed-loop optogenetic stimulation in small rodents.
    • To enable online modulation of neuronal activity based on real-time neural recordings.

    Main Methods:

    • A single-piece device integrating a neural recorder (analog circuitry), an on-off control algorithm, and an optogenetic stimulator.
    • Neural signal amplification (64 dB) in the 300 Hz to 6 KHz range.
    • Real-time analysis of neural signals to control photostimulation.

    Main Results:

    • Bench testing outcomes demonstrating device functionality.
    • The device is portable and head-mountable, suitable for small rodents.
    • Successful implementation of closed-loop control for neuronal modulation.

    Conclusions:

    • The developed device offers a portable and effective solution for closed-loop optogenetic control in pre-clinical rodent studies.
    • This technology facilitates real-time, state-dependent neuronal modulation, advancing neuroscience research.