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Optogenetics in primate cortical networks.

Sam Merlin¹, Trichur Vidyasagar^2,3

¹Medical Science, School of Science, Western Sydney University, Campbelltown, NSW, Australia.

Frontiers in Neuroanatomy

|June 7, 2023

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Optogenetics in non-human primates is advancing, overcoming genetic and delivery challenges. It offers a powerful tool to complement existing methods for studying complex neural circuits.

Area of Science:

Neuroscience
Systems Neuroscience
Primate Research

Background:

Optogenetics implementation in non-human primates faced significant challenges.
Genetic tractability and light delivery limitations hindered previous studies.
Complex neural circuits in primates present unique research hurdles.

Purpose of the Study:

To review the advancements and challenges of optogenetics in primate research.
To highlight how new technologies are overcoming previous limitations.
To propose optogenetics as a complementary tool in systems neuroscience.

Main Methods:

Utilizing tailored viral vectors and promoters for enhanced primate gene expression.
Employing implantable microLED arrays for deeper brain tissue light delivery.

Keywords:

electrophysiology neural circuits non-human primate optogenetics systems neuroscience

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Combining Cre-expressing and Cre-dependent vectors for precise circuit targeting.

Main Results:

Recent successes demonstrate the feasibility and increasing application of optogenetics in primates.
Advanced techniques allow for more specific targeting within complex neural circuits.
Optogenetics can now target deeper brain structures effectively.

Conclusions:

Optogenetics is becoming increasingly viable for primate neuroscience research.
New methods address genetic and anatomical challenges in primate brain studies.
Optogenetics is most advantageous when used to complement traditional neuroscience techniques.