Skip to main content

Research Repository

Advanced Search

When “happy” means “sad”: neuropsychological evidence for the right prefrontal cortex contribution to executive semantic processing

Samson, Dana; Connolly, Catherine; Humphreys, Glyn W.

Authors

Dana Samson

Catherine Connolly

Glyn W. Humphreys



Abstract

The contribution of the left inferior prefrontal cortex in semantic processing has been widely investigated in the last decade. Converging evidence from functional imaging studies shows that this region is involved in the “executive” or “controlled” aspects of semantic processing. In this study, we report a single case study of a patient, PW, with damage to the right prefrontal and temporal cortices following stroke. PW showed a problem in executive control of semantic processing, where he could not easily override automatic but irrelevant semantic processing. This case thus shows the necessary role of the right inferior prefrontal cortex in executive semantic processing. Compared to tasks previously used in the literature, our tasks placed higher demands on executive semantic processing. We suggest that the right inferior prefrontal cortex is recruited when the demands on executive semantic processing are particularly high.

Citation

Samson, D., Connolly, C., & Humphreys, G. W. (2007). When “happy” means “sad”: neuropsychological evidence for the right prefrontal cortex contribution to executive semantic processing. Neuropsychologia, 45(5),

Journal Article Type Article
Publication Date Jan 1, 2007
Deposit Date Aug 15, 2008
Publicly Available Date Aug 15, 2008
Journal Neuropsychologia
Print ISSN 0028-3932
Electronic ISSN 0028-3932
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 45
Issue 5
Keywords prefrontal cortex; right hemisphere; semantic processing; executive function; selection
Public URL http://eprints.nottingham.ac.uk/id/eprint/918
Publisher URL http://www.elsevier.com/wps/find/journaldescription.cws_home/247/description#description

Files





Downloadable Citations