 |
| Research article summary (published 29 Sep 2002): |
Auditory novelty oddball allows reliable distinction of top-down and bottom-up processes of attention.
Full 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.Copyright 2002 Elsevier Science B.V.
Learn Faster Today Improve your study skills
Author information
Author/s: Debener, S (S); Kranczioch, C (C); Herrmann, C S (CS); Engel, A K (AK);
Affiliation: Institute of Medicine, Research Center Jülich, Jülich D-52425, Germany. s.debener@fz-juelich.de
Journal and publication information
Publication Type: Clinical Trial; Journal Article
Journal: International journal of psychophysiology : official journal of the International Organization of Psychophysiology (Int J Psychophysiol), published in Netherlands. (Language: eng)
Reference: 2002-Oct; vol 46 (issue 1) : pp 77-84
Dates: Created 2002/10/10; Completed 2002/11/05; Revised 2006/11/15;
PMID: 12374648, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
Comments and Corrections
CommentIn: Int J Psychophysiol. 2003 Jun;48(3):315. (PMID: 12798991)
External Links for this article (including full text providers, if available):
Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.
This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.
MeSH headings (categories)
This article was linked to the MESH Headings shown below.
|
|
Related articles
This article has not been indexed for related articles as yet, however you can still use the live related article search links below.
See a large map of 100+ related articles.