An ERP investigation of emotional processing in European and Japanese individuals

This article examined neural time course differences in the processing of emotional pictures in European and Asian individuals. Event-related potentials (ERPs) were recorded in 15 French and 15 Japanese volunteers during the presentation of neutral and emotional pictures in their own country. ERPs were analyzed by means of spatio-temporal Principal Component Analysis (PCA) and allow to evaluate cultural influences on emotional processing along three temporal windows: 105 to 140 ms, 176 to 230 ms and 255 to 455 ms. Main results highlight that (1) early ERP components coded emotional charge but were not modulated by cultural background, (2) later components showed a significant decrease of amplitudes at parieto-occipital areas for Japanese participants compared to French ones in emotional condition. These findings suggest that, in both populations, similar neurocognitive processes are involved in the early stage of the emotional stimuli processing and effects observed on later components may reflect a poorer engagement of parietal areas, known to be involved in emotional arousal dimension. Considering that cognitive judgments were similar in both populations, electrophysiological findings suggest that cultural influences on later stage of emotional processing could be related to the known lower level of emotionally expressive behavior in Japanese than in Caucasians.

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

[2]  S. Mineka,et al.  Fears, phobias, and preparedness: toward an evolved module of fear and fear learning. , 2001, Psychological review.

[3]  S. Delplanque,et al.  Modulation of cognitive processing by emotional valence studied through event-related potentials in humans , 2004, Neuroscience Letters.

[4]  W. Heller.  Neuropsychological mechanisms of individual differences in emotion, personality, and arousal. , 1993 .

[5]  J. Russell,et al.  Canadian, Greek, and Japanese freely produced emotion labels for facial expressions , 1993 .

[6]  S. Delplanque,et al.  Event-related P3a and P3b in response to unpredictable emotional stimuli , 2005, Biological Psychology.

[7]  David Sander,et al.  A systems approach to appraisal mechanisms in emotion , 2005, Neural Networks.

[8]  T. Ohnishi,et al.  Specific brain activation in Japanese and Caucasian people to fearful faces , 2005, Neuroreport.

[9]  J. C. Woestenburg,et al.  The removal of the eye-movement artifact from the EEG by regression analysis in the frequency domain , 1983, Biological Psychology.

[10]  R. Davidson.  What does the prefrontal cortex “do” in affect: perspectives on frontal EEG asymmetry research , 2004, Biological Psychology.

[11]  Shu-Chen Li,et al.  Biocultural orchestration of developmental plasticity across levels: the interplay of biology and culture in shaping the mind and behavior across the life span. , 2003, Psychological bulletin.

[12]  Simon Rigoulot,et al.  Arousal and valence effects on event-related P3a and P3b during emotional categorization. , 2006, International Journal of Psychophysiology.

[13]  T. Tsunoda.  The Japanese brain: Uniqueness and Universality , 1985 .

[14]  Michael D. Rugg,et al.  The ERP and cognitive psychology: Conceptual issues. , 1995 .

[15]  G. Comi,et al.  IFCN standards for digital recording of clinical EEG. The International Federation of Clinical Neurophysiology. , 1998, Electroencephalography and clinical neurophysiology. Supplement.

[16]  E. Donchin,et al.  Spatiotemporal analysis of the late ERP responses to deviant stimuli. , 2001, Psychophysiology.

[17]  E. Donchin,et al.  Is the P300 component a manifestation of context updating? , 1988, Behavioral and Brain Sciences.

[18]  H. Sequeira,et al.  Diurnal autonomic variations and emotional reactivity , 2005, Biological Psychology.

[19]  R. Cabeza,et al.  Event-related potentials of emotional memory: Encoding pleasant, unpleasant, and neutral pictures , 2002, Cognitive, affective & behavioral neuroscience.

[20]  M. Rugg,et al.  Electrophysiology of Mind: Event-Related Brain Potentials and Cognition , 1995 .

[21]  M. Bradley,et al.  Brain potentials in affective picture processing: covariation with autonomic arousal and affective report , 2000, Biological Psychology.

[22]  Matthias M. Müller,et al.  Effects of emotional arousal in the cerebral hemispheres: a study of oscillatory brain activity and event-related potentials , 2001, Clinical Neurophysiology.

[23]  A. Angrilli,et al.  Visual evoked potentials, heart rate responses and memory to emotional pictorial stimuli. , 1997, International journal of psychophysiology : official journal of the International Organization of Psychophysiology.

[24]  M. Bradley,et al.  Affective picture processing: the late positive potential is modulated by motivational relevance. , 2000, Psychophysiology.

[25]  E. Donchin,et al.  A componential analysis of the ERP elicited by novel events using a dense electrode array. , 1999, Psychophysiology.

[26]  SanderDavid,et al.  2005 Special Issue , 2005 .

[27]  Harald T. Schupp,et al.  Emotional Facilitation of Sensory Processing in the Visual Cortex , 2003, Psychological science.

[28]  G. Comi,et al.  IFCN standards for digital recording of clinical EEG. International Federation of Clinical Neurophysiology. , 1998, Electroencephalography and clinical neurophysiology.

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

[30]  G. R Mangun,et al.  Shifting visual attention in space: an electrophysiological analysis using high spatial resolution mapping , 2000, Clinical Neurophysiology.

[31]  H. Markus,et al.  Culture, Emotion, and Well-being: Good Feelings in Japan and the United States , 2000 .

[32]  W. Skrandies,et al.  The Processing of Semantic Meaning in Chinese Words and Evoked Brain Topography , 2003, Brain Topography.