Auditory novelty oddball allows reliable distinction of top-down and bottom-up processes of attention
Debener, S., Kranczioch, C., Herrmann, C.S. and Engel, A.K. (2002) Auditory novelty oddball allows reliable distinction of top-down and bottom-up processes of attention. International Journal of Psychophysiology, 46, (1), 77-84. (doi:10.1016/S0167-8760(02)00072-7).
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Description/Abstract
An auditory novelty-oddball task, which is known to evoke a P3 event-related potential (ERP) in a target condition and a novelty-P3 ERP in response to task-irrelevant unique environmental sounds, was repeatedly applied to healthy participants (n=14) on two separate recording sessions, 7 days apart. Both target-P3 and novelty-P3 were internally consistent and test–retest reliable. Interestingly, novelty-P3 amplitude declined from the first to the second half of each recording session, whereas no systematic alteration between both sessions occurred. The target-P3 showed the opposite pattern, i.e. a reduced amplitude from the first to the second session, but no systematic change within each session. These findings suggest that novelty-P3 amplitude changes reflect habituation, whereas target-P3 session effects may indicate the adjusted amount of processing resources invested into the task. In general, the results support the interpretation of the novelty-P3 as indicating automatic, bottom–up related aspects of attention, whereas the target-P3, in the present paradigm, seems to reflect voluntary, top–down related aspects of attention
| Item Type: | Article |
|---|---|
| Related URLs: | |
| Keywords: | target-P3, novelty-P3, habituation, reliability, attention; top–down, bottom–up |
| Subjects: | R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry B Philosophy. Psychology. Religion > BF Psychology |
| Divisions: | University Structure - Pre August 2011 > School of Medicine > Clinical Neurosciences |
| Item ID: | 27560 |
| Date Deposited: | 25 Apr 2006 |
| Last Modified: | 31 May 2011 23:48 |
| Contributors: | Debener, S. (Author) Kranczioch, C. (Author) Herrmann, C.S. (Author) Engel, A.K. (Author) |
| Date: | 2002 |
| Status: | Published |
| Contact Email Address: | s.debener@fz-juelich.de |
| URI: | http://eprints.soton.ac.uk/id/eprint/27560 |
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