Recognition of Facial Expressions of Emotion is Related to their Frequency in Everyday Life

Abstract

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Impaired Recognition of Positive Emotions in Individuals with Posttraumatic Stress Disorder, Cumulative Traumatic Exposure, and Dissociation

“…Due to avoidance and social withdrawal, PTSD individuals likely have fewer positive encounters, which may result in less detailed and accessible representations of positive expressions, interfering with ER [8]. In line with a link found between poorer recognition of positive (and neutral) images and childhood trauma but not PTSD [9], our study suggests that trauma history might be related to impaired recognition of positive expressions more strongly than PTSD diagnosis.…”

“…Our findings also show that (childhood) traumatization can be linked to enhanced ER abilities. Similarly, maltreated children are faster at identifying negative emotions [3], which might be an advantage in an abusive environment and is in line with an established link between speed and accuracy of facial expression recognition and frequency with which expressions occur in social encounters [8].…”

Data face : translating data into abstract face and explore its limitations and advantages

“…LBP [2] • Resized image to 64x64; divided image into 16x16 nonoverlapping blocks (i.e., 16 blocks per image); extracted LBP features with radius = 2 and mapped to 8-neighbors. Each block were binned as 256D histogram to yield a feature vector of dimension 256x16 = 4,096D.…”

“…• Unlike other studies that use caricatured portrayals of emotions that occur infrequently in everyday life [2], we used expressions generated by professional actors.…”

“…• However, the role of context may have been underestimated in this prior work, due to the widespread use of caricatured facial actions that do not reflect the range and complexity of real-world emotion expressivity [2]. We are thus interested in looking into the impact of context in emotion perception from stimuli that have more naturalistic qualities-poses by high quality actors.…”