| Summary: | Fabric, our second skin with moisture and thermal capacity for skin
temperature regulation, can arouse feelings of pleasant and discomfort. To
examine the neurocognitive ability and emotion of fabric tactile perception
under different local temperatures, we used functional magnetic resonance
imaging with the same denim fabric stimuli and forearm contact area, and
found a functional dissociation: the affective regions was more involved
during warm condition, the discriminative regions were more involved during
neutral condition and the basis regions were significance during cool
condition. The higher local skin temperature environment can result in the
improvement of sensitivity and discriminability by dorsal pathway (spatial)
and ventral pathway (frequency) for fabric perception. Our results help to
explain how the brain uses internal models to interpret external fabric
tactile stimuli with micro environmental changing.
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