Neural mechanisms of embodiment: asomatognosia due to premotor cortex damage

BACKGROUND: Patients with asomatognosia generally describe parts of their body as missing or disappeared from corporeal awareness. This disturbance is generally attributed to damage in the right posterior parietal cortex. However, recent neuroimaging and electrophysiological studies suggest that corporeal awareness and embodiment of body parts are instead linked to the premotor cortex of both hemispheres. PATIENT: We describe a patient with asomatognosia of her left arm due to damage in the right premotor and motor cortices. The patient's pathological embodiment for her left arm was associated with mild left somatosensory loss, mild frontal dysfunction, and a behavioral deficit in the mental imagery of human arms. CONCLUSION: Asomatognosia may also be associated with damage to the right premotor cortex.


Published in:
Archives of neurology, 63, 7, 1022-5
Year:
2006
Publisher:
American Medical Association
ISSN:
0003-9942
Laboratories:




 Record created 2010-11-16, last modified 2018-09-13

Publisher's version:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)