Psychiatry Investig.
2013 Jun;10(2):164-172.
Gender Difference in Event Related Potentials to Masked Emotional Stimuli in the Oddball Task
- Affiliations
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- 1Clinical Emotion and Cognition Research Laboratory, Goyang, Republic of Korea. lshpss@paik.ac.kr
- 2Department of Psychiatry, Inje University Ilsan Paik Hospital, Goyang, Republic of Korea.
- 3Keyo Mental Hospital, Uiwang, Republic of Korea.
- 4Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea.
- 5Department of Psychology, Korea University, Seoul, Republic of Korea.
Abstract
OBJECTIVE
We investigated gender differences in event-related potential (ERP) responses to subliminally presented threat-related stimuli.
METHODS
Twenty-four participants were presented with threat-related and neutral pictures for a very brief period of time (17 ms). To explore gender differences in ERP responses to subliminally presented stimuli, we examined six ERP components [P1, N170, N250, P300, Early Posterior Negativity (EPN) and Late Positive Potential (LPP)].
RESULTS
The result revealed that only female participants showed significant increases in the N170 and the EPN in response to subliminally presented threat-related stimuli compared to neutral stimuli.
CONCLUSION
Our results suggest that female participants exhibit greater cortical processing of subliminally presented threat-related stimuli than male participants.
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