Hemispheric specialization and the perception of emotion: Evidence from right-handers and from inverted and non-inverted left-handers

Right-handers and inverted and non-inverted left-handers viewed emotional expressions in one hemifield and, simultaneously, a neutral expression of the same poser in the other hemifield. Subjects were required to identify the side containing the affective face. Happy faces with open (i.e. salient) and closed mouth smiles and sad faces were used as stimuli. For right-handers and inverters reaction time was faster to right hemifield presentations for happy faces and to left hemifield presentations for sad faces. Non-inverters showed the reverse pattern. The saliency of the happy expressions had no effect on the magnitude and direction of asymmetry for any group. The data support the hypothesis of differential hemispheric specialization for positive and negative emotion and demonstrate opposite patterns of asymmetry in affect perception for inverted and non-inverted left-handers.

[1]  C. Umiltà,et al.  Evidence for sex differences in right-hemisphere dominance for emotions , 1980, Neuropsychologia.

[2]  J. Hochberg,et al.  Art, Perception, and Reality , 1972 .

[3]  Joseph E LeDoux,et al.  A divided mind: Observations on the conscious properties of the separated hemispheres , 1977, Annals of neurology.

[4]  K. Heilman,et al.  Discrimination and evocation of affectively intoned speech in patients with right parietal disease , 1977, Neurology.

[5]  H. Terzian.  Behavioural and EEG effects of intracarotid sodium amytal injection , 1964, Acta neurochirurgica.

[6]  R. Ornstein,et al.  Cerebral specialization, writing posture, and motor control of writing in left-handers. , 1979, Science.

[7]  J. Levy,et al.  Variations in writing posture and cerebral organization. , 1976, Science.

[8]  Jerre Levy,et al.  Handwriting Posture and Cerebral Organization: How Are They Related?. , 1982 .

[9]  M. P. Bryden,et al.  A left-ear advantage for identifying the emotional quality of tonal sequences , 1982, Neuropsychologia.

[10]  S. Dimond,et al.  Emotional response to films shown to the right or left hemisphere of the brain measured by heart rate. , 1977, Acta psychologica.

[11]  R. G. Ley,et al.  Hemispheric differences in processing emotions and faces , 1979, Brain and Language.

[12]  J L Bradshaw,et al.  Differential hemispheric mediation of nonverbal visual stimuli. , 1975, Journal of experimental psychology. Human perception and performance.

[13]  B. Kolb,et al.  Affective behavior in patients with localized cortical excisions: role of lesion site and side. , 1981, Science.

[14]  A. Benton,et al.  The neuropsychology of facial recognition. , 1980, The American psychologist.

[15]  G. Gainotti.  Emotional behavior and hemispheric side of the lesion. , 1972, Cortex; a journal devoted to the study of the nervous system and behavior.

[16]  D. Kimura.  Functional Asymmetry of the Brain in Dichotic Listening , 1967 .

[17]  N. Fox,et al.  Asymmetrical brain activity discriminates between positive and negative affective stimuli in human infants. , 1982, Science.

[18]  H. Gardner,et al.  Comprehension and appreciation of humorous material following brain damage. , 1975, Brain : a journal of neurology.

[19]  W. McKeever,et al.  Differential right hemispheric memory storage of emotional and non-emotional faces , 1977, Neuropsychologia.

[20]  M Moscovitch,et al.  Differences in neural organization between individuals with inverted and noninverted handwriting postures. , 1979, Science.

[21]  Richard J. Davidson,et al.  Differential contributions of the two cerebral hemispheres to the perception of happy and sad faces , 1981, Neuropsychologia.

[22]  M. Moscovitch,et al.  Perception of facial expressions , 1981, Brain and Language.

[23]  R. C. Oldfield.  The assessment and analysis of handedness: the Edinburgh inventory. , 1971, Neuropsychologia.

[24]  J L Bradshaw,et al.  Levy and Reid's neurological model in relation to writing hand/posture: an evaluation. , 1981, Psychological bulletin.

[25]  R. Zajonc.  Feeling and thinking : Preferences need no inferences , 1980 .

[26]  P. Ekman.  Pictures of Facial Affect , 1976 .

[27]  G. Rosadini,et al.  Determination of side of cerebral dominance with amobarbital. , 1961, Archives of neurology.