Sex differences in functional brain activation during a lexical visual field task.

Full Abstract

Functional MRI was used to investigate sex differences in brain activation during a paradigm similar to a lexical-decision task. Six males and 6 females performed two runs of the lexical visual field task (i.e., deciding which visual field a word compared with a pseudoword was presented to). A sex difference was noted behaviorally:
The reaction time data showed males had a marginal right visual field advantage and women a left visual field advantage. Imaging results showed that men had a strongly left-lateralized pattern of activation, e.g., inferior frontal and fusiform gyrus, while women showed a more symmetrical pattern in language related areas with greater right-frontal and right-middle-temporal activation. The data show evidence of task-specific sex differences in the cerebral organization of language processing.Copyright 2002 Elsevier Science (USA).

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Author information

Author/s: Rossell, Susan L (SL); Bullmore, Edward T (ET); Williams, Steve C R (SC); David, Anthony S (AS);

Affiliation: Department of Psychological Medicine and Neuroimaging, Institute of Psychiatry, London, UK. susan@maccs.mq.edu.au

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Brain and language (Brain Lang), published in United States. (Language: eng)

Reference: 2002-Jan; vol 80 (issue 1) : pp 97-105

Dates: Created 2002/01/30; Completed 2002/05/21; Revised 2006/11/15;

PMID: 11817892, status: MEDLINE (last retrieval date: 11/6/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult
Brain - anatomy & histology; physiology
Decision Making
Female
Humans

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