Mental rotation of sequentially presented 3D figures: sex and sex hormones related differences in behavioural and ERP measures.

ABSTRACT: Mental rotation of 3D objects demonstrates one of the largest sex differences. We investigated sex and sex hormones-related differences in behaviour and event related potentials (ERP) using a modified Shepard and Metzler task composed of sequentially presented 3D figures in 29 men and 32 women. We demonstrated a significant increase in response time and decrease in both accuracy and positivity of the parietal ERP with increasing angular disparity between the figures. Higher angular disparity evoked an increase of global field power (GFP) from 270 to 460 ms and different activation topographies from 470 to 583 ms with lower parietal, but higher left frontal positivity. Flatter slopes in higher angular disparity condition suggest distinct strategies being implemented depending on the difficu

SUBMITTER: Griksiene R 

PROVIDER: S-EPMC6906480 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature