View Entire Collection
By Clinical Topic
By State Requirement
Diabetes – Summer 2012
Future of Nursing Initiative
Heart Failure - Fall 2011
Influenza - Winter 2011
Nursing Ethics - Fall 2011
Trauma - Fall 2010
Traumatic Brain Injury - Fall 2010
Fluids & Electrolytes
TUESDAY, Oct. 26 (HealthDay News) -- Hormone level variation during a woman's menstrual cycle may affect her response to emotional stimuli, according to a study presented at the annual meeting of the American Society for Reproductive Medicine, held from Oct. 23 to 27 in Denver.
In a prospective study, Christina E. Broadwell, of the University of Vermont in Burlington, and colleagues evaluated eight women with regular menstrual cycles, who completed two functional magnetic resonance imaging (fMRI) sessions during the early follicular and late-follicular/ovulatory phase. During each fMRI session, women were shown a set of images and asked to rate them as pleasant, unpleasant, or neutral.
The researchers found increased lateral prefrontal activation and increased activity in the amygdala and subgenual anterior cingulate during mid-cycle fMRI, which has previously been shown to be associated with the processing of emotional information. However, no brain areas showed significantly increased activation during the early follicular phase, when hormone levels were lower compared to mid-cycle.
"These results suggest that estradiol plays a significant role in the modulation of brain activation during the viewing of emotional information in women with regular menstrual cycles," the authors write. "With directed attention and rating of emotional information, increased activations were only seen during late follicular phase compared to previous studies. This suggests dimorphic responses corresponding to estrogen levels with different cognitive processes."
Abstract No. P-329
Sign up for our free enewsletters to stay up-to-date in your area of practice - or take a look at an archive of prior issues
Join our CESaver program to earn up to 100 contact hours for only $34.95
Explore a world of online resources
Back to Top