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Emotion recognition in deaf individuals: evidence from event-related potentials
Sun-Mee Kang1, Lily S Apar1, Richard Hurtado1
1Department of Psychology, California State University at Northridge, CA 91330-8255, United States.
Journal of Deaf Studies and Deaf Education
|March 24, 2025
Summary
Deaf signers showed lower accuracy in recognizing emotions from top-half faces compared to hearing individuals. This highlights challenges in emotion recognition, especially when facial masks obscure the mouth.
Area of Science:
- Cognitive psychology
- Neuroscience
- Linguistics
Background:
- Deaf signers often rely more on visual cues for communication.
- Previous research indicates deaf signers struggle with recognizing emotions from top-half faces.
Purpose of the Study:
- To replicate and extend findings on emotion recognition in deaf signers.
- To investigate the impact of facial conditions on emotion recognition accuracy and neural responses (LPP).
Main Methods:
- Compared emotion recognition accuracy and late positive potential (LPP) amplitudes in deaf signers and hearing non-signers.
- Presented faces as whole, top-half, or bottom-half conditions.
- Recorded event-related potentials during emotion judgments.
Main Results:
- Deaf signers exhibited lower accuracy in recognizing emotions from top-half faces compared to hearing non-signers.
- Deaf signers showed reduced LPP amplitudes in the top-half face condition.
- Findings support hypotheses regarding visual processing differences.
Conclusions:
- Deaf signers face significant challenges in emotion recognition from partially obscured faces.
- Reduced LPP amplitudes suggest altered neural processing of emotional cues in deaf signers.
- These findings have implications for understanding communication barriers, particularly during the COVID-19 pandemic.
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