Right posterior parietal lesions impair spatial localization across saccadic eye movements

Objective: To investigate the influence of right posterior parietal lesions on transsaccadic spatial localization psychophysically. Aims: Saccade studies in non-human primates and in human patients have indicated a critical role of the posterior parietal cortex around the intraparietal sulcus (IPS) for maintaining spatial constancy across saccadic eye movements whenever the use of non-visual information (efference copy) is needed. The aim of the present study was to find a perceptual correlate of this. Methods: Postsaccadic spatial localization was investigated in 11 patients with post-ischemic right posterior p…