Digital Library
Close Browse articles from a journal
<< previous    next >>
     Journal description
       All volumes of the corresponding journal
         All issues of the corresponding volume
           All articles of the corresponding issues
                                       Details for article 2 of 5 found articles
  Emotional after-effects on the P3 component of the event-related brain potential
Title: Emotional after-effects on the P3 component of the event-related brain potential
Author: Kliegel, Matthias
Horn, Andrea B.
Zimmer, Heinz
Appeared in: International journal of psychology
Paging: Volume 38 (2003) nr. 3 pages 129-137
Year: 2003-06
Contents: A growing body of literature indicates that affective states can influence cognitive processes. The core assumption of Ellis and Ashbrook's (1988) model explaining these emotional after-effects on cognition is that the emotional state regulates the allocation of processing resources. A negative emotional state is supposed to pre-empt capacity normally allocated to the cognitive task at hand. This is assumed to occur because the negative emotional state leads to an increase in intrusive, irrelevant thoughts, which compete with relevant cognitive activities and thus result in a lack of attention given to relevant features of the task to be performed. In the present study, the hypothesis that negative emotions lead to a reduced information-processing capacity and that this is observable on a very basic level of information processing is tested. Therefore, 102 participants were assigned to three independent groups, each inducing one of a negative, a positive, or a neutral mood by means of a 3-minute video-clip. Shortly after the video-clip, two acoustical stimuli with increasing information were presented, while the P3 component of the event-related brain potential on these stimuli was measured as a psychophysiological indicator of cognitive resource allocation. In addition, the experimental manipulation was checked by assessing subjective and external mood ratings as well as cortical alpha activity. Results show that the videos did in fact induce positive, neutral, or negative mood. Moreover, even when controlling for video-related unspecific cortical arousal, a significant emotional after-effect was found on the P3 component of the event-related brain potential, indicating reduced information-processing capacity, particularly in the negative mood condition. The reported data support Ellis and Ashbrook's model of emotional after-effects on cognitive processes. As those effects were observable after an event that did not demand a high amount of cognitive resources, this suggests that even tasks that do not heavily engage central processing resources and are not likely to be influenced by cognitive strategies, seem to be affected by a negative emotional state.
Publisher: Psychology Press
Source file: Elektronische Wetenschappelijke Tijdschriften

                             Details for article 2 of 5 found articles
<< previous    next >>
 Koninklijke Bibliotheek - National Library of the Netherlands