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• W3086619880 abstract "Whenever the retinal image changes, some neurons in visual cortex increase their rate of firing whereas others decrease their rate of firing. Linking specific sets of neuronal responses with perception and behavior is essential for understanding mechanisms of neural circuit computation. We trained mice of both sexes to perform visual detection tasks and used optogenetic perturbations to increase or decrease neuronal spiking primary visual cortex (V1). Perceptual reports were always enhanced by increments in V1 spike counts and impaired by decrements, even when increments and decrements in spiking were generated in the same neuronal populations. Moreover, detecting changes in cortical activity depended on spike count integration rather than instantaneous changes in spiking. Recurrent neural networks trained in the task similarly relied on increments in neuronal activity when activity has costs. This work clarifies neuronal decoding strategies used by cerebral cortex to translate cortical spiking into percepts that can be used to guide behavior. SIGNIFICANCE STATEMENT Visual responses in the primary visual cortex (V1) are diverse, in that neurons can be either excited or inhibited by the onset of a visual stimulus. We selectively potentiated or suppressed V1 spiking in mice while they performed contrast change detection tasks. In other experiments, excitation or inhibition was delivered to V1 independent of visual stimuli. Mice readily detected increases in V1 spiking while equivalent reductions in V1 spiking suppressed the probability of detection, even when increases and decreases in V1 spiking were generated in the same neuronal populations. Our data raise the striking possibility that only increments in spiking are used to render information to structures downstream of V1." @default.
• W3086619880 created "2020-09-21" @default.
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• W3086619880 date "2020-09-11" @default.
• W3086619880 modified "2023-10-16" @default.
• W3086619880 title "Mice Preferentially Use Increases in Cerebral Cortex Spiking to Detect Changes in Visual Stimuli" @default.
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• W3086619880 doi "https://doi.org/10.1523/jneurosci.1124-20.2020" @default.
• W3086619880 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7548699" @default.
• W3086619880 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32917791" @default.
• W3086619880 hasPublicationYear "2020" @default.
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