Human tactile detection of within- and inter-finger spatiotemporal phase shifts of low-frequency vibrations.

ABSTRACT: When we touch an object, the skin copies its surface shape/texture, and this deformation pattern shifts according to the objects movement. This shift pattern directly encodes spatio-temporal "motion" information of the event, and has been detected in other modalities (e.g., inter-aural time differences for audition and first-order motion for vision). Since previous studies suggested that mechanoreceptor-afferent channels with small receptive field and slow temporal characteristics contribute to tactile motion perception, we tried to tap the spatio-temporal processor using low-frequency sine-waves as primitive probes in our previous study. However, we found that asynchrony of sine-wave pair presented on adjacent fingers was difficult to detect. Here, to take advantage of the small receptive

SUBMITTER: Kuroki S 

PROVIDER: S-EPMC5844903 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature