Hayashi, MJ;
Ditye, T;
Harada, T;
Hashiguchi, M;
Sadato, N;
Carlson, S;
Walsh, V;
(2015)
Time Adaptation Shows Duration Selectivity in the Human Parietal Cortex.
PLoS Biology
, 13
(9)
, Article e1002262. 10.1371/journal.pbio.1002262.
Preview |
Text
Time Adaptation Shows Duration Selectivity in the Human Parietal Cortex.pdf - Published Version Download (2MB) | Preview |
Abstract
Although psychological and computational models of time estimation have postulated the existence of neural representations tuned for specific durations, empirical evidence of this notion has been lacking. Here, using a functional magnetic resonance imaging (fMRI) adaptation paradigm, we show that the inferior parietal lobule (IPL) (corresponding to the supramarginal gyrus) exhibited reduction in neural activity due to adaptation when a visual stimulus of the same duration was repeatedly presented. Adaptation was strongest when stimuli of identical durations were repeated, and it gradually decreased as the difference between the reference and test durations increased. This tuning property generalized across a broad range of durations, indicating the presence of general time-representation mechanisms in the IPL. Furthermore, adaptation was observed irrespective of the subject's attention to time. Repetition of a nontemporal aspect of the stimulus (i.e., shape) did not produce neural adaptation in the IPL. These results provide neural evidence for duration-tuned representations in the human brain.
| Type: | Article |
|---|---|
| Title: | Time Adaptation Shows Duration Selectivity in the Human Parietal Cortex |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1371/journal.pbio.1002262 |
| Publisher version: | http://dx.doi.org/10.1371/journal.pbio.1002262 |
| Language: | English |
| Additional information: | © 2015 Hayashi et al. 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. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Institute of Cognitive Neuroscience |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1476517 |
Archive Staff Only
 |
View Item |
