Tactile estimation of hedonic and sensory properties during active touch: An electroencephalography study.

ABSTRACT: Perceptual judgements about our physical environment are informed by somatosensory information. In real-world exploration, this often involves dynamic hand movements to contact surfaces, termed active touch. The current study investigated cortical oscillatory changes during active exploration to inform the estimation of surface properties and hedonic preferences of two textured stimuli: smooth silk and rough hessian. A purpose-built touch sensor quantified active touch, and oscillatory brain activity was recorded from 129-channel electroencephalography. By fusing these data streams at a single trial level, oscillatory changes within the brain were examined while controlling for objective touch parameters (i.e., friction). Time-frequency analysis was used to quantify changes in cortical osc

SUBMITTER: Henderson J 

PROVIDER: S-EPMC10946733 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature