Friday, September 18, 2009

Cerebral organization of component processes in reading

by pugh et al.

AN fMRI study found that "Orthographic processing made maximum demands on extrastriate sites, phonological processing on a number of frontal and temporal sites, and lexical-semantic processing was most strongly associated with middle and superior temporal sites." Men and women processed reading differently: "females did not show an increase in the numbers of activated pixels from the rhyme to semantic category subtractions while males did."

p9 typo? "males displayed greater activation in the LH" shouldn't it be RH?

"in extrastriate regions (as in the total area analysis) females fail to show patterns of increased activation for real words (semantic category-line) relative to nonwords (rhyme-line) while males do show them.

lateral extrastriate region - orthographic processing
medial extrastriate region - real words than to nonword strings of letters
frontal regions - phonological processing
temporal regions - phonological and semantic processing

phonological and semantic networks overlap spatially in women more than man

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