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- Title
Testing the facial feedback hypothesis in facial transplant patients.
- Authors
Gülbetekin, Evrim; Bayraktar, Seda; Özkan, Özlenen; Özkan, Ömer
- Abstract
Objective: According to Facial Feedback Hypothesis (Adelmann&Zajong, 1989;McIntosh,1996), facial movements have also influence on emotions in addition to visual and contextual cues. Mimicking facial expressions occurs very quickly, automatically and specific to the emotion (Dimberg, Thunberg &Elmehed, 2000).This feedback from muscles to brain leads same kind of emotion to be experienced by the receiver, therefore contributes to understanding the emotions of conveying person. Oberman, Winkielman, Ramachandran (2007) indicated that blocking facial mimicry in healthy individuals can selectively impair recognition of emotional expressions. Thus, we aimed to test recognition of emotional expressions in face transplant patients who have difficulties in mimicking. Methods: Two face transplant patients and a control group were participated. Data collection on the patients who are going to be operated or transplanted is continuing. The patients were tested in two tasks in order to measure recognition of facial expressions of emotions. Task1: Seven different emotional expressions on different faces were presented on computer screen and the participants were asked to evaluate the presented expression correctly as soon as possible. The correct response rate (CRR) and reaction time were recorded. Task2: "Reading the Mind in the Eyes Test"(RMIET) which was developed by Baron-Cohen (1999-2001)- measuring social cognition and mind reading abilities in adults- was applied. Results: The CRR of the face transplant patients were lower than the CRR of the healthy control. The scores changed in respect to the expression (p<.05). The CRR for happiness (100%) and surprise (90%) were high, but it was lower for fear (%10) and disgust (%30). Happiness could be recognized fast (2781.50 ms), however, fear (5640.80 ms), sadness (5585.20 ms) and disgust (4091.86 ms) were recognized slowly. The maximum score of RMIET is 32. The scores of Patient1 and Patient2 are 12 and 13. Their scores were low comparing to their matched sample. Conclusion: The facial structure and facial feedback seem to be critical in recognizing emotional expressions on other faces.
- Subjects
FACIAL transplantation; EMOTIONS; FACIAL expression
- Publication
Anatomy: International Journal of Experimental & Clinical Anatomy, 2018, Vol 12, Issue Supp1, pS42
- ISSN
1307-8798
- Publication type
Abstract