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Updated: May 12, 2026

Detecting Pre-Stimulus Source-Level Effects on Object Perception with Magnetoencephalography
Published on: July 26, 2019
Interaction between the electrical stimulation of a face-selective area and the perception of face stimuli
Sang Chul Chong1, Shinho Jo, Kyung Mi Park
1Yonsei University, Republic of Korea. scchong@yonsei.ac.kr
Abstract:
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.
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