Dominance of the right hemisphere for visually guided actions

The aim of this project was to investigate whether there is hemispheric dominance for visually guided finger movements independent of the side of the effector. Methods: We studied 12 right-handed healthy subjects while they performed a visuo-spatially cued choice reaction time task. BOLD-signal changes in relation to movements with the right or left index or middle finger were measured with event-related fMRI. Contrast images (CI) were calculated for responses with the right or left hand respectively. CI representing right handed responses where flipped along the x-axis in MNI-space. In the resulting images, act…