Journal
SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE
Volume 1, Issue 1, Pages 65-71Publisher
OXFORD UNIV PRESS
DOI: 10.1093/scan/nsl003
Keywords
self-awareness; self-recognition; social cognition; inferior parietal lobule; mirror neurons
Categories
Funding
- National Science Foundation
- Brain Mapping Medical Research Organization
- Brain Mapping Support Foundation
- Pierson-Lovelace Foundation
- Ahmanson Foundation
- Tamkin Foundation
- Jennifer Jones-Simon Foundation
- Capital Group Companies Charitable Foundation
- Robson Family
- Northern Piedmont Community Foundation
- Northstar Fund
- National Center for Research Resources [RR12169, RR13642, RR08655]
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Self-other discrimination is fundamental to social interaction, however, little is known about the neural systems underlying this ability. In a previous functional magnetic resonance imaging study, we demonstrated that a right fronto-parietal network is activated during viewing of self-faces as compared with the faces of familiar others. Here we used image-guided repetitive transcranial magnetic stimulation (rTMS) to create a 'virtual lesion' over the parietal component of this network to test whether this region is necessary for discriminating self-faces from other familiar faces. The current results indeed show that 1 Hz rTMS to the right inferior parietal lobule (IPL) selectively disrupts performance on a self-other discrimination task. Applying 1 Hz rTMS to the left IPL had no effect. It appears that activity in the right IPL is essential to the task, thus providing for the first time evidence for a causal relation between a human brain area and this high-level cognitive capacity.
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