Existing function in primary visual cortex is not perturbed by new skill acquisition of a non-matched sensory task

Brian B. Jeon, Thomas Fuchs, Steven M. Chase and Sandra J. Kuhlman ()
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Brian B. Jeon: Carnegie Mellon University
Thomas Fuchs: Carnegie Mellon University and University of Pittsburgh
Steven M. Chase: Carnegie Mellon University
Sandra J. Kuhlman: Carnegie Mellon University

Nature Communications, 2022, vol. 13, issue 1, 1-16

Abstract: Abstract Acquisition of new skills has the potential to disturb existing network function. To directly assess whether previously acquired cortical function is altered during learning, mice were trained in an abstract task in which selected activity patterns were rewarded using an optical brain-computer interface device coupled to primary visual cortex (V1) neurons. Excitatory neurons were longitudinally recorded using 2-photon calcium imaging. Despite significant changes in local neural activity during task performance, tuning properties and stimulus encoding assessed outside of the trained context were not perturbed. Similarly, stimulus tuning was stable in neurons that remained responsive following a different, visual discrimination training task. However, visual discrimination training increased the rate of representational drift. Our results indicate that while some forms of perceptual learning may modify the contribution of individual neurons to stimulus encoding, new skill learning is not inherently disruptive to the quality of stimulus representation in adult V1.

Date: 2022
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DOI: 10.1038/s41467-022-31440-y

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