Rosenthal 2023 S1 represents multisensory contexts

S1 represents multisensory contexts and somatotopic locations within and outside the bounds of the cortical homunculus

Summary: "Rosenthal et al. examine the arm region of the human primary somatosensory cortex and show that it is modulated by vision during physical touches but is unresponsive during passive visual observation alone. They also show that this region encodes information from two distinct body locations, despite the area’s classical topographic organization.

• We examine human multi-unit electrophysiological data during visuotactile touches
• Vision strongly modulates S1 activity during physical touches d S1 does not respond to passively viewing touches with no physical stimulus
• Despite classic S1 topography, arm and finger are both represented in S1 arm area"

Reference: 

Isabelle A. Rosenthal, Luke Bashford, Spencer Kellis, Kelsie Pejsa, Brian Lee, Charles Liu, Richard A. Andersen,

S1 represents multisensory contexts and somatotopic locations within and outside the bounds of the cortical homunculus,

Cell Reports,

Volume 42, Issue 4,

2023,

112312,

ISSN 2211-1247,

https://doi.org/10.1016/j.celrep.2023.112312.