Expressing fear enhances sensory acquisition

It has been proposed that facial expression production originates in sensory regulation. Here we demonstrate that facial expressions of fear are configured to enhance sensory acquisition. A statistical model of expression appearance revealed that fear and disgust expressions have opposite shape and surface reflectance features. We hypothesized that this reflects a fundamental antagonism serving to augment versus diminish sensory exposure. In keeping with this hypothesis, when subjects posed expressions of fear, they had a subjectively larger visual field, faster eye movements during target localization and an increase in nasal volume and air velocity during inspiration. The opposite pattern was found for disgust. Fear may therefore work to enhance perception, whereas disgust dampens it. These convergent results provide support for the Darwinian hypothesis that facial expressions are not arbitrary configurations for social communication, but rather, expressions may have originated in altering the sensory interface with the physical world.

[1]  C. Izard.  Innate and universal facial expressions: evidence from developmental and cross-cultural research. , 1994, Psychological bulletin.

[2]  K. Scherer,et al.  Voluntary facial expression of emotion: comparing congenitally blind with normally sighted encoders. , 1997, Journal of personality and social psychology.

[3]  R. Dolan,et al.  Distant influences of amygdala lesion on visual cortical activation during emotional face processing , 2004, Nature Neuroscience.

[4]  Reginald B. Adams,et al.  Why Do Fear and Anger Look the Way They Do? Form and Social Function in Facial Expressions , 2005, Personality & social psychology bulletin.

[5]  A. J. Fridlund.  Human Facial Expression: An Evolutionary View , 1994 .

[6]  U. Hess,et al.  The Influence of Facial Emotion Displays, Gender, and Ethnicity on Judgments of Dominance and Affiliation , 2000 .

[7]  J. Turner.  Human Emotions: A Sociological Theory , 2007 .

[8]  C. Zelano,et al.  Humans as an Animal Model for Systems-Level Organization of Olfaction , 2005, Neuron.

[9]  J. Stainer,et al.  The Emotions , 1922, Nature.

[10]  Christoph M. Michel,et al.  Two electrophysiological stages of spatial orienting towards fearful faces: early temporo-parietal activation preceding gain control in extrastriate visual cortex , 2005, NeuroImage.

[11]  F. Saussure,et al.  Course in General Linguistics , 1960 .

[12]  F. Strack,et al.  Inhibiting and facilitating conditions of the human smile: a nonobtrusive test of the facial feedback hypothesis. , 1988, Journal of personality and social psychology.

[13]  M. Kinsbourne.  CHILD PSYCHIATRY AND PREVENTION , 1965 .

[14]  A. O'Toole,et al.  Prototype-referenced shape encoding revealed by high-level aftereffects , 2001, Nature Neuroscience.

[15]  R. Zajonc.  Emotion and facial efference: a theory reclaimed. , 1985, Science.

[16]  L. Cosmides,et al.  The past explains the present: Emotional adaptations and the structure of ancestral environments , 1990 .

[17]  Jeffrey S. Maxwell,et al.  Human Amygdala Responsivity to Masked Fearful Eye Whites , 2004, Science.

[18]  K. Scherer,et al.  Appraisal processes in emotion: Theory, methods, research. , 2001 .

[19]  A. Anderson,et al.  Neural Correlates of the Automatic Processing of Threat Facial Signals , 2022 .

[20]  Michael Davis,et al.  The amygdala: vigilance and emotion , 2001, Molecular Psychiatry.

[21]  T. Singer.  The neuronal basis and ontogeny of empathy and mind reading: Review of literature and implications for future research , 2006, Neuroscience & Biobehavioral Reviews.

[22]  P. Ekman.  An argument for basic emotions , 1992 .

[23]  K. Scherer,et al.  Evidence for universality and cultural variation of differential emotion response patterning. , 1994, Journal of personality and social psychology.

[24]  A. Fallon,et al.  A perspective on disgust. , 1987, Psychological review.

[25]  W. James,et al.  What Is an Emotion , 1977 .

[26]  C. Darwin.  The Expression of the Emotions in Man and Animals , .

[27]  V. Gallese.  Before and below ‘theory of mind’: embodied simulation and the neural correlates of social cognition , 2007, Philosophical Transactions of the Royal Society B: Biological Sciences.

[28]  Timothy F. Cootes,et al.  Active Appearance Models , 1998, ECCV.

[29]  G. Cottrell,et al.  EMPATH: A Neural Network that Categorizes Facial Expressions , 2002, Journal of Cognitive Neuroscience.

[30]  P. Schyns,et al.  A mechanism for impaired fear recognition after amygdala damage , 2005, Nature.

[31]  Theodor Piderit.  Mimik und Physiognomik , 1886 .

[32]  Albrecht Peiper,et al.  Cerebral function in infancy and childhood , 1963 .

[33]  R. Adolphs.  Recognizing emotion from facial expressions: psychological and neurological mechanisms. , 2002, Behavioral and cognitive neuroscience reviews.

[34]  J. Movellan,et al.  Human and computer recognition of facial expressions of emotion , 2007, Neuropsychologia.

[35]  N. Ambady,et al.  The effects of fear and anger facial expressions on approach- and avoidance-related behaviors. , 2005, Emotion.

[36]  R. Andrew,et al.  EVOLUTION OF FACIAL EXPRESSION. , 1963, Science.

[37]  P. Ekman,et al.  Constants across cultures in the face and emotion. , 1971, Journal of personality and social psychology.

[38]  P. Ekman.  Universals and cultural differences in facial expressions of emotion. , 1972 .

[39]  F. Boiten,et al.  Autonomic response patterns during voluntary facial action. , 1996, Psychophysiology.

[40]  S. Rauch,et al.  Masked Presentations of Emotional Facial Expressions Modulate Amygdala Activity without Explicit Knowledge , 1998, The Journal of Neuroscience.

[41]  John F. Fulton,et al.  Medical physiology and biophysics , 1960 .

[42]  M. Carrasco,et al.  PSYCHOLOGICAL SCIENCE Research Article Emotion Facilitates Perception and Potentiates the Perceptual Benefits of Attention , 2022 .

[43]  W. James.  II.—WHAT IS AN EMOTION ? , 1884 .

[44]  K. Scherer.  Appraisal considered as a process of multilevel sequential checking. , 2001 .

[45]  I. Eibl-Eibesfeldt,et al.  The expressive behavior of the deaf-and-blind born , 1973 .

[46]  W. Alvarez.  Cerebral Function in Infancy and Childhood. , 1965 .

[47]  T. Dalgleish.  Basic Emotions , 2004 .