Abstract
In this study, in order to clarify the human advanced brain information processing mechanism on tactile cognition, we used functional MRI (fMRI) and the manufactured tactile length stimulus presentation equipment by 12 persons normal subjects identified human brain activity region to tactile length cognition without visual guidance. By the experiment result, activation regions are found in the intra-parietal sulcus (IPS), lateral occipital cortex (LOC), dorsal occipital cortex (DOC), MT/V5, Wernicke, Broca, and right dorsolateral prefrontal area. These brain activation regions showed that tactile cognition closely associated with high order vision information processing areas and language information processing areas. On the tactile length cognition, using tactile mental representation, it is accompanied also by logical intellectual judgment at the same time it makes an intuitive cognitional judgment.
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