Sex-related differences in amygdala activity influences immediate memory

作者：Aikins Deane E^*; Anticevic Alan; Kiehl Kent A; Krystal John H

来源：NeuroReport, 2010, 21(4): 273-276.

DOI：10.1097/WNR.0b013e328335b3f9

• amygdala
• recognition memory
• sex differences
• unpleasant arousal

Despite a well-established relationship between amygdala activation during learning and long-term memory, contributions of amygdala to immediate memory have not been studied to date. We used functional magnetic resonance imaging at 1.5-T field strength to determine whether amygdala responses to emotional pictures would predict performance on an immediate recognition memory test. Sex differences in amygdala activation were related to false-positive error rates in recognizing unpleasant pictures. Specifically, increased right amygdala activation during unpleasant picture viewing was related to lower false-positive rates for men and higher false-positive rates for women. Our results indicate that increased amygdala activation while viewing unpleasant pictures may preferentially facilitate immediate recognition memory in men relative to women.

• 出版日期2010-3-10