Topic
Facial expression
About: Facial expression is a research topic. Over the lifetime, 17085 publications have been published within this topic receiving 639905 citations. The topic is also known as: expression.
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TL;DR: Direct in vivo evidence of a differential neural response in the human amygdala to facial expressions of fear and happiness is reported, providing direct evidence that the humangdala is engaged in processing the emotional salience of faces, with a specificity of response to fearful facial expressions.
Abstract: The amygdala is thought to play a crucial role in emotional and social behaviour. Animal studies implicate the amygdala in both fear conditioning and face perception. In humans, lesions of the amygdala can lead to selective deficits in the recognition of fearful facial expressions and impaired fear conditioning, and direct electrical stimulation evokes fearful emotional responses. Here we report direct in vivo evidence of a differential neural response in the human amygdala to facial expressions of fear and happiness. Positron-emission tomography (PET) measures of neural activity were acquired while subjects viewed photographs of fearful or happy faces, varying systematically in emotional intensity. The neuronal response in the left amygdala was significantly greater to fearful as opposed to happy expressions. Furthermore, this response showed a significant interaction with the intensity of emotion (increasing with increasing fearfulness, decreasing with increasing happiness). The findings provide direct evidence that the human amygdala is engaged in processing the emotional salience of faces, with a specificity of response to fearful facial expressions.
1,954 citations
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01 Jan 1975
1,938 citations
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TL;DR: This survey introduces the most prominent automatic facial expression analysis methods and systems presented in the literature and discusses issues such as face normalization, facial expression dynamics and facial expression intensity.
1,879 citations
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14 Apr 2005
TL;DR: The study of spontaneous facial expression in psychology has been conducted by as mentioned in this paper, who found that the asymmetry of facial actions is inconsisten with models of hemispheric specialization and the consistency of facial expressions of pain: a comparison across modalities.
Abstract: Foreword Introduction The study of spontaneous facial expression in psychology I: BASIC RESEARCH ON EMOTION 1. Is the startle reaction an emotion? 2. The asymmetry of facial actions is inconsisten with models of hemispheric specialization 3. Coherence between expressive and experiential systmes in emotion 4. Will the real relationship between facial expression and affective experience please stand up: The case of exhilaration 5. Extraversion, alcohol, and enjoyment 6. Signs of appeasement: Evidence for the distinct displays of embarrassment, amusement, and shame 7. Genuine, suppressed, and faked facial behavior during exacerbation of chronic low back pain 8. The consistency of facial expressions of pain: a comparison across modalities 9. Smiles when lying 10. Behavioral markers and recognizability of the smile of enjoyment 11. Components and recognition of facial expression in the communication of emotion by actors 12. Differentiating emotion elicited and deliberate emotional facial expressions 13. Japanese and American infants' responses to arm restraint 14. Differential facial responses to four basic tests in newborns II: APPLIED RESEARCH 15. Facial expressions in affective disorders 16. Emotional experience and epxression in schizophrenia and depression 17. Interaction regulations used by schizophrenic and psychosomatic patients: Studies on facial behavior in dyadic interactions 18. Nonverbal expression of psychological states in psychiatric patients 19. Depression and suicide faces 20. Prototypical affective microsequences in psychotherapeutic interaction 21. Facial expressions of emotion and psychopathology in adolescent boys 22. Type A behavior pattern: Facial behavior and speech components Conclusion What we have learned by measuring the face Index
1,875 citations
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TL;DR: The capability of the human visual system with respect to these problems is discussed, and it is meant to serve as an ultimate goal and a guide for determining recommendations for development of an automatic facial expression analyzer.
Abstract: Humans detect and interpret faces and facial expressions in a scene with little or no effort. Still, development of an automated system that accomplishes this task is rather difficult. There are several related problems: detection of an image segment as a face, extraction of the facial expression information, and classification of the expression (e.g., in emotion categories). A system that performs these operations accurately and in real time would form a big step in achieving a human-like interaction between man and machine. The paper surveys the past work in solving these problems. The capability of the human visual system with respect to these problems is discussed, too. It is meant to serve as an ultimate goal and a guide for determining recommendations for development of an automatic facial expression analyzer.
1,872 citations