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Sex differences in face gender recognition: an event-related potential study.
Yueting Sun1, Xiaochao Gao, Shihui Han
1Department of Psychology Peking University, Beijing, 100871, PR China.
Brain Research
|February 16, 2010
Summary
Attention to social cues in faces, like gender, impacts early face encoding and later evaluation differently in women versus men. These findings highlight sex differences in social face processing.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Social Neuroscience
Background:
- Human face processing involves multiple neurocognitive levels.
- Early face processing, including structural encoding, may be influenced by attentional focus.
Purpose of the Study:
- To investigate if task demands focusing on perceptual versus social facial features modulate early face processing.
- To determine if these modulations differ between men and women.
Main Methods:
- Recorded event-related brain potentials (ERPs) from adult men and women.
- Participants identified low-level perceptual (face orientation) and high-level social (gender) features of faces.
Main Results:
- Task demands modulated early (N170) and late (P3) ERP components.
- N170 amplitude was smaller for gender than orientation identification.
- P3 amplitude was larger for gender than orientation identification, with stronger effects in women.
Conclusions:
- Attention to social facial information modulates early structural encoding and late evaluative processes.
- These modulations are more pronounced in women than in men, indicating sex differences in social face perception.
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