Object size determines the spatial spread of visual time
A 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 to the orderly arrangement of neurons tasked with spatial processing. In the current study, we exam...
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| Format: | Article |
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Royal Society
2016
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| Online Access: | https://eprints.nottingham.ac.uk/34940/ |
| _version_ | 1848794966426386432 |
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| author | Fulcher, Corinne McGraw, Paul V. Roach, Neil W. Whitaker, David Heron, James |
| author_facet | Fulcher, Corinne McGraw, Paul V. Roach, Neil W. Whitaker, David Heron, James |
| author_sort | Fulcher, Corinne |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A 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 to the orderly arrangement of neurons tasked with spatial processing. In the current study, we examine the linkage between the spatial and temporal domains. We use sensory adaptation techniques to generate aftereffects where perceived duration is either compressed or expanded in the opposite direction to the adapting stimulus’ duration. Our results indicate that these aftereffects 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 vs 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. |
| first_indexed | 2025-11-14T19:24:35Z |
| format | Article |
| id | nottingham-34940 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:24:35Z |
| publishDate | 2016 |
| publisher | Royal Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-349402020-05-04T17:59:26Z https://eprints.nottingham.ac.uk/34940/ Object size determines the spatial spread of visual time Fulcher, Corinne McGraw, Paul V. Roach, Neil W. Whitaker, David Heron, James A 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 to the orderly arrangement of neurons tasked with spatial processing. In the current study, we examine the linkage between the spatial and temporal domains. We use sensory adaptation techniques to generate aftereffects where perceived duration is either compressed or expanded in the opposite direction to the adapting stimulus’ duration. Our results indicate that these aftereffects 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 vs 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. Royal Society 2016-07-27 Article PeerReviewed Fulcher, Corinne, McGraw, Paul V., Roach, Neil W., Whitaker, David and Heron, James (2016) Object size determines the spatial spread of visual time. Proceedings of the Royal Society B: Biological Sciences, 283 (1835). ISSN 1471-2954 time perception; spatial selectivity; duration adaptation; visual; size; aftereffect http://rspb.royalsocietypublishing.org/content/283/1835/20161024 doi:10.1098/rspb.2016.1024 doi:10.1098/rspb.2016.1024 |
| spellingShingle | time perception; spatial selectivity; duration adaptation; visual; size; aftereffect Fulcher, Corinne McGraw, Paul V. Roach, Neil W. Whitaker, David Heron, James Object size determines the spatial spread of visual time |
| title | Object size determines the spatial spread of visual time |
| title_full | Object size determines the spatial spread of visual time |
| title_fullStr | Object size determines the spatial spread of visual time |
| title_full_unstemmed | Object size determines the spatial spread of visual time |
| title_short | Object size determines the spatial spread of visual time |
| title_sort | object size determines the spatial spread of visual time |
| topic | time perception; spatial selectivity; duration adaptation; visual; size; aftereffect |
| url | https://eprints.nottingham.ac.uk/34940/ https://eprints.nottingham.ac.uk/34940/ https://eprints.nottingham.ac.uk/34940/ |