Effects of Sexually Dimorphic Shape Cues on Neurophysiological Correlates of Women's Face Processing

Lisa L. M. Welling, Patricia E. G. Bestelmeyer, Benedict C. Jones, Lisa M. DeBruine, Kevin Allan

Research output: Contribution to journalArticle

Abstract

Sexual dimorphism (i.e., masculinity in males and femininity in females) is known to affect social perceptions that are important for both mate choice and intrasexual competition, such as attractiveness and dominance. Little is known, however, about the neurophysiological underpinnings mediating sexual dimorphism's effects on face processing. Here we investigate the neurological correlates of processing sexually dimorphic faces using event-related potentials (ERPs). We employed image transformation techniques to enhance and reduce the sexually dimorphic shape features of male and female faces viewed by women performing a sex categorization task. Sexual dimorphism modulated superior-central N250 magnitude and the peak latency of the N170 and P200. The sex of the face further modulated the amplitude of the P200. These findings extend prior work linking the superior-central N250 to social categorization processes triggered by face shape, and strengthen its functional interpretation in terms of coarse- versus fine-grained categorical judgements. We conclude that ERPs can illuminate the cognitive mechanisms (i.e., mental processes) underlying behavioral responses to sexual dimorphism.
Original languageEnglish
Pages (from-to)337-350
Number of pages14
JournalAdaptive Human Behavior and Physiology
Volume3
Issue number4
Early online date21 Jul 2017
DOIs
Publication statusPublished - Dec 2017

Fingerprint

Cues
Sex Characteristics
Evoked Potentials
Femininity
Social Perception
Mental Processes
Masculinity

Keywords

  • faces
  • sexual dimorphism
  • event-related potentials
  • N250
  • N170

Cite this

Effects of Sexually Dimorphic Shape Cues on Neurophysiological Correlates of Women's Face Processing. / Welling, Lisa L. M.; Bestelmeyer, Patricia E. G.; Jones, Benedict C.; DeBruine, Lisa M.; Allan, Kevin.

In: Adaptive Human Behavior and Physiology, Vol. 3, No. 4, 12.2017, p. 337-350.

Research output: Contribution to journalArticle

Welling, Lisa L. M. ; Bestelmeyer, Patricia E. G. ; Jones, Benedict C. ; DeBruine, Lisa M. ; Allan, Kevin. / Effects of Sexually Dimorphic Shape Cues on Neurophysiological Correlates of Women's Face Processing. In: Adaptive Human Behavior and Physiology. 2017 ; Vol. 3, No. 4. pp. 337-350.
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