Peripersonal and reaching space differ: Evidence from their spatial extent and multisensory facilitation pattern.

ABSTRACT: Peripersonal space (PPS) is a multisensory representation of the space near body parts facilitating interactions with the close environment. Studies on non-human and human primates agree in showing that PPS is a body part-centered representation that guides actions. Because of these characteristics, growing confusion surrounds peripersonal and arm-reaching space (ARS), that is the space one's arm can reach. Despite neuroanatomical evidence favoring their distinction, no study has contrasted directly their respective extent and behavioral features. Here, in five experiments (N = 140) we found that PPS differs from ARS, as evidenced both by participants' spatial and temporal performance and by its modeling. We mapped PPS and ARS using both their respective gold standard tasks and a novel mul

SUBMITTER: Zanini A 

PROVIDER: S-EPMC8642341 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature