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dc.contributor.authorFulcher, Corinne
dc.contributor.authorMcGraw, Paul V.
dc.contributor.authorRoach, N.W.
dc.contributor.authorWhitaker, David J.
dc.contributor.authorHeron, James
dc.date.accessioned2016-08-05T15:35:23Z
dc.date.available2016-08-05T15:35:23Z
dc.date.issued2016-07-27
dc.identifier.citationFulcher C, McGraw PV, Roach NW, Whitaker D and Heron J (2016) Object size determines the spatial spread of visual time. Proceedings of the Royal Society B: Biological Sciences. 283(1835).en_US
dc.identifier.urihttp://hdl.handle.net/10454/8751
dc.descriptionYesen_US
dc.description.abstractA key question for temporal processing research is how the nervous system extracts event duration, despite a notable lack of neural structures dedicated to duration encoding. This is in stark contrast with the orderly arrangement of neurons tasked with spatial processing. In this study, we examine the linkage between the spatial and temporal domains. We use sensory adaptation techniques to generate after-effects where perceived duration is either compressed or expanded in the opposite direction to the adapting stimulus’ duration. Our results indicate that these after-effects are broadly tuned, extending over an area approximately five times the size of the stimulus. This region is directly related to the size of the adapting stimulus—the larger the adapting stimulus the greater the spatial spread of the aftereffect. We construct a simple model to test predictions based on overlapping adapted versus non-adapted neuronal populations and show that our effects cannot be explained by any single, fixed-scale neural filtering. Rather, our effects are best explained by a self-scaled mechanism underpinned by duration selective neurons that also pool spatial information across earlier stages of visual processing.en_US
dc.description.sponsorshipJ.H. is supported by the Vision Research Trust (43069). N.W.R. is supported by a Wellcome Trust Research Career Development Fellowship (WT097387).en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://dx.doi.org/10.1098/rspb.2016.1024en_US
dc.rights© 2016 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.en_US
dc.subjectTime perception; Spatial selectivity; Duration adaptation; Visual; Size; After-effecten_US
dc.titleObject size determines the spatial spread of visual timeen_US
dc.status.refereedYesen_US
dc.date.Accepted2016-07-04
dc.date.application2016-07-27
dc.typeArticleen_US
dc.type.versionpublished version paperen_US
refterms.dateFOA2018-07-25T14:57:42Z


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