by Delia Lenzi
The Somatosensory system is known to be a multimodal system but we still know little about these proprieties. In particular, researchers are discovering that one of these submodalities —touch — has another dimension, besides that of decoding a wide range of tactile stimuli, the affective one. In this article, McGlone and colleagues propose that a class of low-threshold mechanosensitive C fibers that innervate the hairy skin may be the neurobiological substrate for the affective and rewarding properties of touch.
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