Yes / In conflict with historically dominant models of time perception, recent evidence suggests that the
encoding of our environment’s temporal properties may not require a separate class of neurons whose
raison d'être is the dedicated processing of temporal information. If true, it follows that temporal
processing should be imbued with the known selectivity found within non-temporal neurons. In the
current study, we tested this hypothesis for the processing of a poorly understood stimulus parameter:
visual event duration. We used sensory adaptation techniques to generate duration aftereffects:
bidirectional distortions of perceived duration. Presenting adapting and test durations to the same vs
different eyes utilises the visual system’s anatomical progression from monocular, pre-cortical neurons
to their binocular, cortical counterparts. Duration aftereffects exhibited robust inter-ocular transfer
alongside a small but significant contribution from monocular mechanisms. We then used novel stimuli
which provided duration information that was invisible to monocular neurons. These stimuli generated
robust duration aftereffects which showed partial selectivity for adapt-test changes in retinal disparity.
Our findings reveal distinct duration encoding mechanisms at monocular, depth-selective and depthinvariant
stages of the visual hierarchy. / The Wellcome Trust [WT097387].
| Identifer | oai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/17113 |
| Date | 30 May 2019 |
| Creators | Heron, James, Fulcher, Corinne, Collins, Howard, Whitaker, David J., Roach, N.W. |
| Source Sets | Bradford Scholars |
| Language | English |
| Detected Language | English |
| Type | Article, Published version |
| Rights | © The Author(s) 2019. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/., CC-BY |
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