[O5] 口頭5 《知覚・感性2》

[O5-05] Spatial perspective-taking is mediated by simulated whole-body movement

Identifying the mechanism of the perspective-response congruency effect

*Hiroyuki Muto^1,2, Soyogu Matsushita¹, Kazunori Morikawa¹ (1. Graduate School of Human Sciences, Osaka University, 2. Japan Society for the Promotion of Science)

Keywords:spatial perspective-taking, embodied cognition, motor simulation

Spatial perspective-taking (SPT) is a cognitive process to understand spatial relationships from a perspective other than the one’s own. Muto, Matsushita, and Morikawa (215) found that response time for a SPT task using scene stimuli was shortened when a responding foot (left or right) was congruent with the direction of SPT (clockwise or counterclockwise) compared to when a responding foot was incongruent. To identify the mechanism of this perspective-response congruency effect (PRCE), the current study manipulated the presentation position (left or right) of the scene stimuli. Results showed that the PRCE occurred when the stimuli were presented on the side opposite to a responding foot but did not occur when the stimuli were presented on the same side as a responding foot. This result indicates that the PRCE cannot be accounted for by neither stimulus-response compatibility nor sensorimotor interference, and supports the mediating role of simulated whole-body movement in SPT.