![]() Natural stimuli are known to have strong statistical dependencies across both space and time, such as a prevalence of vertical and horizontal (cardinal) orientations and a higher probability of small orientation changes in given spatial region over short time intervals. įunding: National Institute of Mental Health ( ) Training Grant in Cognitive Neuroscience (T32- MH020002) to TCS National Eye Institute ( ) R01-EY025872 and National Institutes of Mental Health ( ) RO1-MH087214 to JTS The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist.įunctional magnetic resonance imaging FWHM, This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All data and code required to complete analysis are available on an OSF repository at. Received: NovemAccepted: JPublished: September 6, 2022Ĭopyright: © 2022 Sheehan, Serences. PLoS Biol 20(9):Īcademic Editor: Frank Tong, Vanderbilt University, UNITED STATES According to this account, the visual system can simultaneously improve efficiency via adaptation while still optimizing behavior based on the temporal structure of natural stimuli.Ĭitation: Sheehan TC, Serences JT (2022) Attractive serial dependence overcomes repulsive neuronal adaptation. Second, our modeling work suggest that serial dependence is induced by readout mechanisms that account for adaptation in visual cortex. First, neural adaptation reduces redundancy at encoding and leads to the repulsive biases that we observed in visual cortex. We reconciled these opposing neural and behavioral biases using a model where both sensory encoding and readout are shaped by stimulus history. While behavioral reports were attracted to the previous stimulus, response patterns in visual cortex were repelled. We recorded functional magnetic resonance imaging (fMRI) responses while human participants (male and female) performed a delayed orientation discrimination task. While behavioral studies have pointed to both perceptual and postperceptual origins of this phenomenon, neural data that could elucidate where these biases emerge is limited. For example, perceptual reports are sometimes biased toward previously viewed stimuli (serial dependence). Sensory responses and behavior are strongly shaped by stimulus history.
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