Gender Stereotype Activation versus Lexical Semantic Activation: An ERP Study

Area of Science:

• Cognitive Neuroscience
• Social Psychology
• Psycholinguistics

Background:

• Distinguishing social stereotype activation from nonsocial semantic activation is an ongoing research question.
• Understanding how the brain processes social versus nonsocial information is crucial for cognitive science.

Purpose of the Study:

• To directly compare gender stereotype activation (GSA) with lexical semantic activation (LSA).
• To investigate the neural correlates differentiating social stereotype processing from semantic processing.

Main Methods:

• Electroencephalography (EEG) was used to record brain activity in 20 participants.
• Participants identified word pair congruence across four conditions: stereotype congruent, stereotype incongruent, semantic congruent, and semantic incongruent.

Main Results:

• Congruent targets led to faster, more accurate responses and reduced N400 amplitudes regardless of priming type.
• The N400 congruency effect was more pronounced and initiated earlier for GSA than LSA.
• Gender category priming resulted in a smaller N400 and larger P600 compared to lexical category priming.

Conclusions:

• The brain distinguishes between stereotype and semantic violations in post-perceptual processing.
• Neural processing differs for social category (GSA) versus lexical category (LSA) priming.
• Social category information, particularly stereotypes, may undergo faster and deeper cognitive processing.