Multi-area recordings and optogenetics in the awake, behaving marmoset

Patrick Jendritza (), Frederike J. Klein and Pascal Fries
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Patrick Jendritza: Ernst Strüngmann Institute (ESI) for Neuroscience in Cooperation with Max Planck Society
Frederike J. Klein: Ernst Strüngmann Institute (ESI) for Neuroscience in Cooperation with Max Planck Society
Pascal Fries: Ernst Strüngmann Institute (ESI) for Neuroscience in Cooperation with Max Planck Society

Nature Communications, 2023, vol. 14, issue 1, 1-16

Abstract: Abstract The common marmoset has emerged as a key model in neuroscience. Marmosets are small in size, show great potential for genetic modification and exhibit complex behaviors. Thus, it is necessary to develop technology that enables monitoring and manipulation of the underlying neural circuits. Here, we describe a novel approach to record and optogenetically manipulate neural activity in awake, behaving marmosets. Our design utilizes a light-weight, 3D printed titanium chamber that can house several high-density silicon probes for semi-chronic recordings, while enabling simultaneous optogenetic stimulation. We demonstrate the application of our method in male marmosets by recording multi- and single-unit data from areas V1 and V6 with 192 channels simultaneously, and show that optogenetic activation of excitatory neurons in area V6 can influence behavior in a detection task. This method may enable future studies to investigate the neural basis of perception and behavior in the marmoset.

Date: 2023
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DOI: 10.1038/s41467-023-36217-5

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