We electrically stimulated the face-selective area in epileptic patients while they were performing a face-categorization task. Face categorization was interfered by electrical stimulation but was restored by increasing the visual signal. More importantly, face-categorization interference by electrical stimulation was confined to face-selective electrodes, and the amount of interference was positively correlated with the sensitivity of the face-selective electrodes. These results strongly support the hypothesis that the face-selective area has a direct causal link to face perception.
Bibliographical noteFunding Information:
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2009-0093901 ) to S.C. and partly by a grant (2010K000817) from the Brain Research Center of the 21st Century Frontier Research Program funded by the Ministry of Science of the Republic of Korea to S.H.. We thank Eunsam Shin and anonymous reviewers for helpful comments and discussion on this manuscript.
All Science Journal Classification (ASJC) codes
- Cognitive Neuroscience