Dumontheil, Iroise and Gilbert, S.J. and Burgess, P.W. and Otten, L.J. (2010) Neural correlates of task and source switching: similar or different? Biological Psychology 83 (3), pp. 239-249. ISSN 0301-0511.
|
Text
6559.pdf - Published Version of Record Available under License Creative Commons Attribution. Download (569kB) | Preview |
Abstract
Controlling everyday behaviour relies on the ability to configure appropriate task sets and guide attention towards information relevant to the current context and goals. Here, we ask whether these two aspects of cognitive control have different neural bases. Electrical brain activity was recorded while sixteen adults performed two discrimination tasks. The tasks were performed on either a visual input (letter on the screen) or self-generated information (letter generated internally by continuing the alphabetical sequence). In different blocks, volunteers either switched between (i) the two tasks, (ii) the two sources of information, or (iii) tasks and source of information. Event-related potentials differed significantly between switch and no-switch trials from an early point in time, encompassing at least three distinct effects. Crucially, although these effects showed quantitative differences across switch types, no qualitative differences were observed. Thus, at least under the current circumstances, switching between different tasks and between perceptually derived or self-generated sources of information rely on similar neural correlates until at least 900 ms after the onset of a switch event.
Metadata
| Item Type: | Article |
|---|---|
| Keyword(s) / Subject(s): | Event-related potentials, Executive functions, Cognitive control, Task switching, Internal/external |
| School: | Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences |
| Research Centres and Institutes: | Educational Neuroscience, Centre for, Brain and Cognitive Development, Centre for (CBCD) |
| Depositing User: | Administrator |
| Date Deposited: | 01 May 2013 09:24 |
| Last Modified: | 02 Aug 2023 17:03 |
| URI: | https://eprints.bbk.ac.uk/id/eprint/6559 |
Statistics
Additional statistics are available via IRStats2.
Archive Staff Only (login required)
