Proceedings of the Annual Meeting of the Cognitive Science Society

According to theories of anticipatory behavior control, actionplanning and control is realized by activating desired goalstates. From an event-predictive perspective, this activationshould focus sensorimotor processing on expected, upcomingevent boundaries. Previous studies have shown that periper-sonal hand space (PPHS) is remapped to the future hand lo-cation in a grasping task before the movement commences.Here, we investigated if the current hand posture interfereswith the anticipatory remapping of PPHS. Participants had tograsp virtual bottles from two differently oriented starting pos-tures. During the prehension, they received a vibrotactile stim-ulus on their right index finger or on their thumb, while a vi-sual stimulus appeared at the bottle, either matching the futurefinger position, or not. Participants had to name the stimu-lated finger. While the hand posture affected verbal responsetimes, the anticipatory remapping remained unchanged. Ap-parently, the predictive processes that realize the anticipatoryremapping, generalize over initial hand postures.