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Amygdala activity in response to forward versus backward dynamic facial expressions.
Brain Res. 2010 Feb 22; 1315:92-9.BR

Abstract

Observations of dynamic facial expressions of emotion activate several brain regions, but the psychological functions of these regions remain unknown. To investigate this issue, we presented dynamic facial expressions of fear and happiness forwards or backwards, thus altering the emotional meaning of the facial expression while maintaining comparable visual properties. Thirteen subjects passively viewed the stimuli while being scanned using fMRI. After image acquisition, the subject's emotions while perceiving the stimuli were investigated using valence and intensity scales. The left amygdala showed higher activity in response to forward compared with backward presentations, for both fearful and happy expressions. Amygdala activity showed a positive relationship with the intensity of the emotion experienced. These results suggest that the amygdala is not involved in the visual but is involved in the emotional processing of dynamic facial expressions, including specifically the elicitation of subjective emotions.

Authors+Show Affiliations

Department of Comparative Study of Cognitive Development, Primate Research Institute, Kyoto University, Inuyama, Aichi 484-8506, Japan. sato@pri.kyoto-u.ac.jpNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20025856

Citation

Sato, Wataru, et al. "Amygdala Activity in Response to Forward Versus Backward Dynamic Facial Expressions." Brain Research, vol. 1315, 2010, pp. 92-9.
Sato W, Kochiyama T, Yoshikawa S. Amygdala activity in response to forward versus backward dynamic facial expressions. Brain Res. 2010;1315:92-9.
Sato, W., Kochiyama, T., & Yoshikawa, S. (2010). Amygdala activity in response to forward versus backward dynamic facial expressions. Brain Research, 1315, 92-9. https://doi.org/10.1016/j.brainres.2009.12.003
Sato W, Kochiyama T, Yoshikawa S. Amygdala Activity in Response to Forward Versus Backward Dynamic Facial Expressions. Brain Res. 2010 Feb 22;1315:92-9. PubMed PMID: 20025856.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Amygdala activity in response to forward versus backward dynamic facial expressions. AU - Sato,Wataru, AU - Kochiyama,Takanori, AU - Yoshikawa,Sakiko, Y1 - 2009/12/16/ PY - 2009/03/07/received PY - 2009/11/24/revised PY - 2009/12/01/accepted PY - 2009/12/23/entrez PY - 2009/12/23/pubmed PY - 2010/5/7/medline SP - 92 EP - 9 JF - Brain research JO - Brain Res VL - 1315 N2 - Observations of dynamic facial expressions of emotion activate several brain regions, but the psychological functions of these regions remain unknown. To investigate this issue, we presented dynamic facial expressions of fear and happiness forwards or backwards, thus altering the emotional meaning of the facial expression while maintaining comparable visual properties. Thirteen subjects passively viewed the stimuli while being scanned using fMRI. After image acquisition, the subject's emotions while perceiving the stimuli were investigated using valence and intensity scales. The left amygdala showed higher activity in response to forward compared with backward presentations, for both fearful and happy expressions. Amygdala activity showed a positive relationship with the intensity of the emotion experienced. These results suggest that the amygdala is not involved in the visual but is involved in the emotional processing of dynamic facial expressions, including specifically the elicitation of subjective emotions. SN - 1872-6240 UR - https://www.unboundmedicine.com/medline/citation/20025856/Amygdala_activity_in_response_to_forward_versus_backward_dynamic_facial_expressions_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0006-8993(09)02605-5 DB - PRIME DP - Unbound Medicine ER -