Abstract:
:fMRI investigation on the neural substrates involved in tactile imagery is reported. Healthy subjects performed mental imagery of tactile stimulation on the dorsal aspect of the right hand. The results were compared with the regions of activation during the actual tactile stimulation. During imagery, contralateral primary and secondary somatosensory areas were activated along with activation in the left parietal lobe. Activations in left inferior frontal gyri (Brodmann's area 44), left dorsolateral prefrontal area, left precentral gyrus, left insula, and medial frontal gyrus were also observed. In the basal ganglia, activation in the left thalamus (ventral posteromedial nucleus) and putamen was found. Our results suggest that the primary and secondary somatosensory areas are recruited during tactile imagery, and have partially overlapping neural substrates for the perception of tactile stimulation.
journal_name
Neuroreportjournal_title
Neuroreportauthors
Yoo SS,Freeman DK,McCarthy JJ 3rd,Jolesz FAdoi
10.1097/00001756-200303240-00011subject
Has Abstractpub_date
2003-03-24 00:00:00pages
581-5issue
4eissn
0959-4965issn
1473-558Xjournal_volume
14pub_type
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