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Background Tactile adaptation is a phenomenon of the sensory system that results in temporal desensitization after an exposure to sustained or repetitive tactile stimuli. Previous studies reported psychophysical and physiological adaptation where perceived intensity and mechanoreceptive afferent signals exponentially decreased during tactile adaptation. Along with these studies, we hypothesized that...
In the human mechanosensation system, rapidly adapting afferents project sensory signals of flutter (5–50Hz) to the contralateral primary somatosensory cortex (S1) and bilateral secondary somatosensory cortex (S2) whereas Pacinian afferents project sensory signals of vibration (50–400Hz) to bilateral S2. However, it remains largely unknown how somatosensory cortical activity changes as a function...
Mechanosensation includes the detection of mechanical stimuli from mechanoreceptors and sensory signal transduction to the somatosensory cortex through neural afferents. Previous studies reported the sensory signals of flutter (5–50 Hz) and vibration (50–400 Hz) traveled through separated neural afferents of rapidly adapting type 1 (RA) and rapidly adapting type 2 (PC) respectively, and they activated...
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