Emily Eaves1, Cheuk Ying Tang1,2, Johnny Ng1, David Carpenter1, David Schroeder3, Chris Condon3, Roberto Colom4, Richard J. Haier5
1Radiology, Mount Sinai School of Medicine, New York, NY, USA; 2Psychiatry, Mount Sinai School of Medicine, New York, NY, USA; 3Johnson O'Connor Research Foundation, Chicago, IL, USA; 4Universidad Autnoma de Madrid, Madrid, Spain; 5. School of Medicine (emeritus), UC Irvine, Irvine, CA, USA
We sought to determine if brain activity during a working memory task correlated with various intelligence measures and what, if any, effect gender had on these correlations. Forty subjects completed a battery of cognitive tests prior to completing an N-back working memory task where fMRI data was collected. Percent activations in areas of increased activity during the task were extracted for each subject. Correlation analysis of intelligence scores and percent activations were different for males and females. All correlations were negative suggesting reduced activity with increased performance, providing support for the efficiency model of brain function.