Contrasting hemispheric asymmetries for emotional processing from event-related potentials and behavioral responses

Neuropsychology
Giulia PreteLuca Tommasi

Abstract

Four main theories concerning hemispheric asymmetries for emotional processing have been proposed: the right hemisphere hypothesis (RHH; the right hemisphere is specialized in processing all emotions), the valence hypothesis (VH; the left and the right hemispheres are superior in positive and negative emotion processing, respectively), the modified VH (the right-hemispheric superiority at posterior sites is followed by a valence-specific activity at frontal sites), and the motivational model (the left and the right hemispheres are superior in approaching-related and avoidance-related emotions, respectively). In a divided visual field paradigm, we presented happy and angry faces to 16 healthy participants, either unilaterally or bilaterally, in order to test the aforementioned theories. Behavioral results provided support for the VH and correlational analysis revealed that handedness influences the rightward bias for positive emotions. The amplitude of P1, N170, and P2 event-related potential components at parietal sites (selected by means of topographic maps) was larger in the right than in the left hemisphere, independently of the emotional expression of the stimuli, supporting the RHH. At frontal sites, no asymmetry was found...Continue Reading

Citations

Mar 5, 2020·Social Neuroscience·Giulia PreteLuca Tommasi
May 13, 2020·Brain and Behavior·Stephanie S A H BlomGün R Semin
Nov 28, 2019·Perceptual and Motor Skills·Miloš Stanković, Milkica Nešić
Apr 18, 2019·Scientific Reports·Gianluca MalatestaLuca Tommasi
Jul 6, 2020·Scientific Reports·Grégoire Boulinguez-AmbroiseAdrien Meguerditchian
May 28, 2019·Evolutionary Psychology : an International Journal of Evolutionary Approaches to Psychology and Behavior·Gianluca MalatestaLuca Tommasi
Jun 20, 2019·Frontiers in Behavioral Neuroscience·Xue XiaXiaochun Wang
Feb 23, 2020·Frontiers in Behavioral Neuroscience·Naira A TaroyanPaul G Overton
Feb 16, 2019·Computational Intelligence and Neuroscience·Min HaoRui Chen
Jun 6, 2019·Frontiers in Psychology·Deema AwadIsabelle Mareschal
Jan 15, 2021·Scientific Reports·Julian PackheiserSebastian Ocklenburg
Nov 14, 2020·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Miloš Stanković
Apr 9, 2021·Frontiers in Behavioral Neuroscience·Gianluca MalatestaLuca Tommasi
Jul 6, 2019·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Coline JeantetStéphanie Caharel
May 8, 2021·Progress in Neuro-psychopharmacology & Biological Psychiatry·Saba AmiriMehdi M Mirbagheri

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