Gender related strategies of visual-spatial task performance
Slavutskaia, A.V.; Gerasimenko, N.I.; Mikhaĭlova, E.S.
Rossiiskii Fiziologicheskii Zhurnal Imeni I.M. Sechenova 98(11): 1339-1349
2012
ISSN/ISBN: 0869-8139 PMID: 23431764 Document Number: 660556
In 31 subjects (16 men and 15 women) in model of the gender differences the brain mechanisms of two different strategies of visual-spatial tasks performance were studied. Although we did not find gender differences in the performing of visual-construction task the pattern of evoked activity was unequal in men and women. In men the early answer of the parietal cortex was related with spatial transformation of figure: the more was rotation of figures details, the more was amplitude of P1 wave. Moreover the amplitude of P1 wave in parietal area decreased with incorrect answers. In opposite, in women we did not find any ERP changes reflecting the details rotation. At the same time, in women we observed the increase of N150 negativity in occipital and infero-temporal cortex area when figure ungrouped into separate details. Our results shed light on some additional information concerning the basis of gender differences in performing of visuo-spatial tasks. Our data show that different strategies are not only defined by the later, but also the early stages of visual processing.