The contribution of facial dynamics to subtle expression recognition in typical viewers and developmental visual agnosia
| Autor: | Sharon Gilaie-Dotan, Neta Yitzhak, Hillel Aviezer |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male Eye Movements Cognitive Neuroscience Emotions Experimental and Cognitive Psychology 050105 experimental psychology Motion (physics) Young Adult 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Humans 0501 psychology and cognitive sciences Visual agnosia Visual search Analysis of Variance Facial expression 05 social sciences Eye movement Fixation (psychology) Facial Expression Pattern Recognition Visual Facial expression recognition Dynamics (music) Agnosia Female Psychology Photic Stimulation 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Neuropsychologia. 117:26-35 |
| ISSN: | 0028-3932 |
| Popis: | Facial expressions are inherently dynamic cues that develop and change over time, unfolding their affective signal. Although facial dynamics are assumed important for emotion recognition, testing often involves intense and stereotypical expressions and little is known about the role of temporal information in the recognition of subtle, non-stereotypical expressions. In Experiment 1 we demonstrate that facial dynamics are critical for recognizing subtle and non-stereotypical facial expressions, but not for recognizing intense and stereotypical displays of emotion. In Experiment 2 we further examined whether the facilitative effect of motion can lead to improved emotion recognition in LG, an individual with developmental visual agnosia and prosopagnosia, who has poor emotion recognition when tested with static facial expressions. LG's emotion recognition improved when subtle, non-stereotypical faces were dynamic rather than static. However, compared to controls, his relative gain from temporal information was diminished. Furthermore, LG's eye-tracking data demonstrated atypical visual scanning of the dynamic faces, consisting of longer fixations and lower fixation rates for the dynamic-subtle facial expressions, comparing to the dynamic-intense facial expressions. We suggest that deciphering subtle dynamic expressions strongly relies on integrating broad facial regions across time, rather than focusing on local emotional cues, skills which are impaired in developmental visual agnosia. |
| Databáze: | OpenAIRE |
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