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Left brain memory activity stronger in women, right brain in men.

Women's Health Weekly

| August 05, 2004 | COPYRIGHT 2004 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

2004 AUG 5 - (NewsRx.com & NewsRx.net) -- Study results show a stronger relationship between left hemisphere amygdala activity and memory in women than in men and between right hemisphere amygdala activity and memory in men than in women.

According to University of California, Irvine, neurobiologists, "The amygdala appears necessary for enhanced long-term memory associated with emotionally arousing events. Recent brain imaging investigations support this view and indicate a sex-related hemispheric lateralization exists in the amygdala relationship to memory for emotional material. This study confirms and further explores this finding."

L. Cahill and colleagues had healthy men and women view standardized slides while undergoing functional magnetic resonance imaging (fMRI). The slides "were rated by the subjects as ranging from emotionally neutral to highly arousing. Two weeks later, memory for the slides was assessed in an incidental recognition test."

The researchers reported that the experiment's "results demonstrate a significantly stronger relationship in men than in women between activity of the right hemisphere amygdala and memory for those slides judged as arousing, and a significantly stronger relationship in women than in men between activity of the left hemisphere amygdala and memory for arousing slides."

"An ANOVA ...

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