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Electrophysiological evidence for greater attention to threat when cognitive control resources are depleted.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Holmes, Amanda Mogg, Karin de Fockert, Jan Nielsen, Maria Kragh Bradley, Brendan P.
Description	Author Affiliation: Holmes A ( Department of Psychology, University of Roehampton, London, UK, a.holmes@roehampton.ac.uk.)
Abstract	In this study, we investigated the time course of attentional bias for threat-related (angry) facial expressions under conditions of high versus low cognitive (working memory) load. Event-related potential (ERP) and reaction time (RT) data were recorded while participants viewed pairs of faces (angry paired with neutral face) displayed for 500 ms and followed by a probe. Participants were required to respond to the probe while performing a concurrent task of holding in working memory a sequence of digits that were either in the same order (low memory load) or in a random mixed order (high memory load). The ERP results revealed that higher working memory load resulted in enhanced lateralized neural responses to threatening relative to neutral faces, consistent with greater initial orienting of attention to threatening faces (early N2pc: 180-252 ms) and enhanced maintenance of processing representations of threat (late N2pc, 252-320 ms; SPCN, 320-500 ms). The ERP indices showed significant positive relationships with each other, and also with the behavioral index of attentional bias to threat (reflected by faster RTs to probes replacing angry than neutral faces at 500 ms), although the latter index was not significantly influenced by memory load. Overall, the findings indicate that depletion of cognitive control resources, using a working memory manipulation, increases the capacity of task-irrelevant threat cues to capture and hold attention.
File Format	HTM / HTML
ISSN	15307026
Issue Number	2
Volume Number	14
e-ISSN	1531135X
Journal	Cognitive, Affective, & Behavioral Neuroscience
Language	English
Publisher	Springer
Publisher Date	2014-06-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Behavioral Sciences Discipline Neurology Anger Physiology Attention Bias (epidemiology) Cognition Memory, Short-term Pattern Recognition, Visual Adolescent Adult Electroencephalography Evoked Potentials Facial Expression Female Humans Male Photic Stimulation Reaction Time Young Adult Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Cognitive Neuroscience Behavioral Neuroscience

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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