Correlation between the scores of the Wisconsin Card Sorting Test and electroencephalographic activity in postmenopausal women

The aim was to correlate the scores of the performance of Wisconsin Card Sorting Test with measures of electroencephalographic activity (EEG) in 48 postmenopausal women between 48 and 65 years. EEG activity was recorded at rest in F3, F4, F7, F8, FC3, FC4, C3, C4, CP3, CP4, P3, P4, O1, O2, FT7, FT8, Fz, Cz, CPz, Pz and Oz. The power of delta, theta, alphal, alpha2, betal and beta2 was obtained and correlated with the number of categories completed, cards presented, errors, perseverative errors, number of trials and errors to the categories. Beta2 band was positively correlated with the number of categories completed (p = 0.04) and negatively with the number of perseverative errors (p = 0.03) and the number of errors (p = 0.03). These results indicate that a state of cortical activation fast is necessary to successful performance in tests that involve executive function in women with low estrogen levels due to postmenopause.