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Dissertation
The role of somatosensory feedback in the visual recognition of emotion: an EMG and ANS study
Doctor of Philosophy (Ph.D.), Drexel University
Sep 2002
DOI:
https://doi.org/10.17918/00007649
Abstract
The somatic feedback hypothesis predicts autonomic nervous system reactivity and facial sensory involvement in the visual recognition of emotion in faces. Photographs of actors' faces showing mild and extreme intensity expressions labeled "happy," "anger," "fear," "sad," and "neutral" were presented for two types of judgments by healthy controls. Participants were asked to identify the displayed emotion and to discern the age of each face. Skin conductance level (SCR) and heart rate (HR) were measured during both tasks. EMG activity at the left brow ( m. corrugator supercillii), left periocular (m. orbicularis oculi), and left cheek (m. zygomaticus) muscle regions was collected. Results indicated significantly greater SCR activity and slower heart rate for the emotion identification task compared to the age discrimination task. The EMG data showed significantly greater activity during emotion identification for the periocular and cheek region compared to age discrimination. No significant difference was observed at the brow region. Results are discussed in the context of somatosensory feedback model of emotion recognition.
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Details
- Title
- The role of somatosensory feedback in the visual recognition of emotion
- Creators
- James Woodworth Loughead
- Contributors
- Douglas L. Chute (Advisor) - Drexel University, Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Doctor of Philosophy (Ph.D.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- viii, 73 pages
- Resource Type
- Dissertation
- Language
- English
- Academic Unit
- College of Arts and Sciences; Drexel University
- Other Identifier
- 991021889071704721