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• W1684809134 abstract "Are sensory estimates formed centrally in the brain and then shared between perceptual and motor pathways or is centrally represented sensory activity decoded independently to drive awareness and action? Questions about the brain's information flow pose a challenge because systems-level estimates of environmental signals are only accessible indirectly as behavior. Assessing whether sensory estimates are shared between perceptual and motor circuits requires comparing perceptual reports with motor behavior arising from the same sensory activity. Extrastriate visual cortex both mediates the perception of visual motion and provides the visual inputs for behaviors such as smooth pursuit eye movements. Pursuit has been a valuable testing ground for theories of sensory information processing because the neural circuits and physiological response properties of motion-responsive cortical areas are well studied, sensory estimates of visual motion signals are formed quickly, and the initiation of pursuit is closely coupled to sensory estimates of target motion. Here, we analyzed variability in visually driven smooth pursuit and perceptual reports of target direction and speed in human subjects while we manipulated the signal-to-noise level of motion estimates. Comparable levels of variability throughout viewing time and across conditions provide evidence for shared noise sources in the perception and action pathways arising from a common sensory estimate. We found that conditions that create poor, low-gain pursuit create a discrepancy between the precision of perception and that of pursuit. Differences in pursuit gain arising from differences in optic flow strength in the stimulus reconcile much of the controversy on this topic." @default.
• W1684809134 created "2016-06-24" @default.
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• W1684809134 creator A5036406490 @default.
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• W1684809134 date "2015-06-03" @default.
• W1684809134 modified "2023-09-27" @default.
• W1684809134 title "Shared Sensory Estimates for Human Motion Perception and Pursuit Eye Movements" @default.
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• W1684809134 doi "https://doi.org/10.1523/jneurosci.4320-14.2015" @default.
• W1684809134 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4452555" @default.
• W1684809134 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26041919" @default.
• W1684809134 hasPublicationYear "2015" @default.
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