The Influence of Facial Expression Absence on the Recognition of Different Emotions: Evidence from Behavioral and Event-Related Potentials Studies
1Faculty of Psychology, Tianjin Normal University, Tianjin 300387, China; Key Research Base of Humanities and Social Sciences of the Ministry of Education, Academy of Psychology and Behavior, Tianjin Normal University, Tianjin 300387, China; Tianjin Key Laboratory of Student Mental Health and Intelligence Assessment, Tianjin 300387, China.
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Summary
Facial expressions are crucial for recognizing basic emotions, but bodily cues become more important for complex emotions when faces are hidden. This study reveals how facial information impacts emotion recognition speed and accuracy.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Social Psychology
Background:
- Facial expressions are key for emotional communication but not always visible.
- Bodily expressions are vital for emotion recognition when facial cues are absent.
- Reliance on facial cues differs between basic and complex emotions.
Purpose of the Study:
- Investigate the influence of absent facial expressions on basic and complex emotion recognition.
- Examine behavioral and electrophysiological differences in emotion processing with and without facial information.
- Understand the distinct roles of facial and bodily cues in emotion recognition.
Main Methods:
- Participants judged emotional word-image congruence using full-body images (faces visible or occluded).
- Behavioral data (accuracy, reaction time) and electroencephalography (EEG) event-related potentials (ERPs) were recorded.
- The study focused exclusively on female participants to control for gender differences.
Main Results:
- Facial expression absence significantly decreased emotion recognition accuracy and speed, especially for basic emotions.
- Event-related potentials showed distinct patterns: N170 for congruent pairs, N400 enhanced with faces, and LPP modulated by emotion type and face visibility.
- Complex emotions showed greater reliance on bodily cues when faces were absent, while basic emotions were more impaired.
Conclusions:
- Facial expressions are essential for efficient basic emotion recognition.
- Bodily cues play a more significant role in recognizing complex emotions, particularly when facial information is unavailable.
- Distinct neural mechanisms underlie the processing of basic and complex emotions, modulated by the availability of facial and bodily cues.