Visual recognition is heralded by shifts in local field potential oscillations and inhibitory networks in primary visual cortex
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6257.full.pdf
Description
Published version
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3.1 MB
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Adobe PDF
Checksum (MD5)
74894e6f17eac2572c7db1529cc114d0
Author(s)
Hayden, Dustin J
Montgomery, Daniel P
Cooke, Samuel F
Bear, Mark F
Date Issued
2021
Journal
Journal of Neuroscience
Publisher
Society for Neuroscience
Citation
Hayden, Dustin J, Montgomery, Daniel P, Cooke, Samuel F and Bear, Mark F. 2021. "Visual recognition is heralded by shifts in local field potential oscillations and inhibitory networks in primary visual cortex." Journal of Neuroscience, 41 (29).
Version
Final published version
Abstract
Learning to recognize and filter familiar, irrelevant sensory stimuli eases the computational burden on the cerebral cortex. Inhibition is a candidate mechanism in this filtration process, and oscillations in the cortical local field potential (LFP) serve as markers of the engagement of different inhibitory neurons. We show here that LFP oscillatory activity in visual cortex is profoundly altered as male and female mice learn to recognize an oriented grating stimulus-low frequency (∼15 Hz peak) power sharply increases while high frequency (∼65 Hz peak) power decreases. These changes report recognition of the familiar pattern, as they disappear when the stimulus is rotated to a novel orientation. Two-photon imaging of neuronal activity reveals that parvalbumin-expressing inhibitory neurons disengage with familiar stimuli and reactivate to novelty, whereas somatostatin-expressing inhibitory neurons show opposing activity patterns. We propose a model in which the balance of two interacting interneuron circuits shifts as novel stimuli become familiar.SIGNIFICANCE STATEMENT:Habituation, familiarity and novelty detection are fundamental cognitive processes that enable organisms to adaptively filter meaningless stimuli and focus attention on potentially important elements of their environment. We have shown that this process can be studied fruitfully in the mouse primary visual cortex by using simple grating stimuli for which novelty and familiarity are defined by orientation, and by measuring stimulus-evoked and continuous local field potentials. Altered event-related and spontaneous potentials, and deficient habituation, are well-documented features of several neurodevelopmental psychiatric disorders. The paradigm described here will be valuable to interrogate the origins of these signals and the meaning of their disruption more deeply.
MIT Department
Picower Institute for Learning and Memory
Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1523/JNEUROSCI.0391-21.2021
