Different activation signatures in the primary sensorimotor and higher-level regions for haptic three-dimensional curved surface exploration.

ABSTRACT: Haptic object perception begins with continuous exploratory contact, and the human brain needs to accumulate sensory information continuously over time. However, it is still unclear how the primary sensorimotor cortex (PSC) interacts with these higher-level regions during haptic exploration over time. This functional magnetic resonance imaging (fMRI) study investigates time-dependent haptic object processing by examining brain activity during haptic 3D curve and roughness estimations. For this experiment, we designed sixteen haptic stimuli (4 kinds of curves × 4 varieties of roughness) for the haptic curve and roughness estimation tasks. Twenty participants were asked to move their right index and middle fingers along the surface twice and to estimate one of the two features-roughness or c

SUBMITTER: Yang J 

PROVIDER: S-EPMC11822888 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature