Poster A20, Saturday, March 25, 5:00 – 7:00 pm, Pacific Concourse
Brain Mechanisms for Processing Natural Dynamic Facial Expressions of Emotion
Shih-Tseng T. Huang1, Yen-Ju Lu1; 1Department of Psychology and Center for research in Cognitive Science, National Chung-Cheng University, Taiwan
Spontaneous emotional expressions are related to the person’s real emotions and are important in understanding the meaning and effects of emotions in social interactions. Recent research has supported an interdependence view based on neural models of face processing (Lander & Butcher, 2015). The present study attempts to further test the hypothesis of interdependence of processing dynamic natural facial expressions by measuring the brain activation in performing tasks involving processing facial emotional expressions. 27 young adults were recruited and completed an experiment to view dynamic facial expressions and objects in motion in an er-fMRI paradigm. We found that emotional faces were having higher activities than the processing objects (non-face) with motion at right middle temporal gyrus, left fusiform, right superior temporal gyrus, left middle occipital gyrus, right thalamus, and right middle frontal gyrus. It was also found difference in between processing emotional expressions and neutral faces at the right fusiform, right amygdala, right insula, right middle temporal gyrus, right inferior frontal gyrus, and right superior temporal gyrus. Furthermore, it was found that the fearful faces were higher than the happy faces at left superior temporal gyrus, right middle frontal gyrus, and right thalamus. And, it was also found that fearful faces were higher than the angry faces at right superior temporal gyrus, right transverse temporal gyrus, left fusiform, and left middle occipital gyrus. These findings may help to elucidate the nature of processing dynamic facial expressions.
Topic Area: EMOTION & SOCIAL: Emotion-cognition interactions