Iperception 2021 Mar-Apr;12(2):20416695211004620. Epub 2021 Mar 28.
NTT Communication Science Laboratories, NTT Corporation, Kanagawa, Japan; Department of Intelligence Science and Technology, Graduate School of Informatics, Kyoto University, Kyoto, Japan.
Motion detection is a fundamental sensory function for multiple modalities, including touch, but the mechanisms underlying tactile motion detection are not well understood. While previous findings supported the existence of high-level feature tracking, it remains unclear whether there also exist low-level motion sensing that directly detects a local spatio-temporal correlation in the skin-stimulation pattern. To elucidate this mechanism, we presented, on braille displays, tactile random-dot kinematograms, similar to those widely used in visual motion research, which enables us to independently manipulate feature trackability and various parameters of local motion. Read More