Notes and discussion: Sex Differences in Functional Brain Activation during a Lexical Visual Field Task  

Oleh:

Rossell, Susan L. ; Bullmore, Edward T. ; Williams, Steve C. R. ; David, Anthony S.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 80 no. 1 (2002), page 97-105 .
Topik: lexical visual field task; sex differences; language processing; functional MRI
Fulltext: 80_01_Rossell.pdf (96.74KB)

Isi artikel

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.

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