Cortical responses to object-motion and visually-induced self-motion perception

We investigated the spatiotemporal cortical dynamics during the perception of object-motion and visually-induced self-motion perception in six normal subjects, using a 143-channel neuromagnetometer. Object-motion specific tas ks evoked early transient activity over the right temporooccipital cortex, while self-motion perception, or vection, additionally was followed by sust ained bilateral activity in the temporoparietal area. The specific signal d istributions suggest to represent the different perceptual modes of object- motion and self-motion sensation. (C) 2001 Elsevier Science B.V. All rights reserved.