Hemispheric asymmetry in hand preference of right-handers for passive vibrotactile perception: an fNIRS study.

ABSTRACT: Hemispheric asymmetry in hand preference for passive cutaneous perception compared to active haptic perception is not well known. A functional near-infrared spectroscopy was used to evaluate the laterality of cortical facilitation when 31 normal right-handed participants were involved in 205 Hz passive vibrotactile cutaneous stimuli on their index fingers of preferred and less-preferred hand. Passive cutaneous perception resulted that preferred (right) hand stimulation was strongly leftward lateralized, whereas less-preferred (left) hand stimulation was less lateralized. This confirms that other manual haptic exploration studies described a higher hemispheric asymmetry in right-handers. Stronger cortical facilitation was found in the right primary somatosensory cortex (S1) and right somato

SUBMITTER: Jin SH 

PROVIDER: S-EPMC7414115 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature