Concurrent use of somatotopic and external reference frames in a tactile mislocalization task

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Concurrent use of somatotopic and external reference frames in a tactile mislocalization task.

Localizing tactile stimuli on our body requires sensory information to be represented in multiple frames of reference along the sensory pathways. These reference frames include the representation of sensory information in skin coordinates, in which the spatial relationship of skin regions is maintained. The organization of the primary somatosensory cortex matches such somatotopic reference fram...

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The mindless act of swatting a mosquito on the hand poses a remarkable challenge for the brain. Given that the primary somatosensory cortex maps skin location independently of arm posture [1, 2], the brain must realign tactile coordinates in order to locate the origin of the stimuli in extrapersonal space. Previous studies have highlighted the behavioral relevance of such an external mapping of...

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ژورنال

عنوان ژورنال: Brain and Cognition

سال: 2017

ISSN: 0278-2626

DOI: 10.1016/j.bandc.2016.10.005