The N160 response was differently lateralized in men and women. Overall (and irrespective of facial expression), women exhibited a N1 response of comparable amplitude over the two visual areas (with a tendency to be larger over the LH), whereas N1 was significantly lateralized over the right hemisphere in men (see Fig. 4) as demonstrated by the significant interaction of "gender X hemisphere" (F[1,38] = 5.22; p < 0.03). This suggests a functional characterization of the hemispheric lateralization in men, which would be more related to the analysis of structural properties of faces and expressions rather than to their affective content.
