The influence of subliminal emotional words on functional hemispheric asymmetry |
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| Authors: | E A Kostandov |
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| Affiliation: | 1. École de psychologie, Université Laval, Quebec City (Qc), Canada;2. Centre for Interdisciplinary Research in Rehabilitation and Social Integration (CIRRIS), Quebec City (Qc), Canada;1. Department of General Psychology, University of Padova, Via Venezia, 8, 35131, Padova, Italy;2. Center for Cognitive Neuroscience, University of Padova, Via Venezia, 8, 35131, Padova, Italy;1. Institute of Medical Psychology and Systems Neuroscience, University of Münster, Germany;2. School of Psychology, Victoria University of Wellington, New Zealand;3. Biological Psychology, Institute of Experimental Psychology, Heinrich-Heine-University Düsseldorf, Germany;4. Biopsychology, Institute of Cognitive Neuroscience, Department of Psychology, Ruhr-University Bochum, Germany;1. Department of Cell Biology, University of Salzburg, Salzburg, Austria;2. Department of Physiological Psychology, University of Salzburg, Salzburg, Austria;3. Center for Neurocognitive, Research, University of Salzburg, Salzburg, Austria;1. School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China;2. College of Psychology, Shenzhen University, Shenzhen, 518060, China;3. Department of Education Science, Innovation Center for Fundamental Education Quality Enhancement of Shanxi Province, Shanxi Normal University, Linfen 041000, China;4. Institute for Brain and Psychological Sciences, Sichuan Normal University, Chengdu, 610068, China;5. School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen, Guangdong, China;6. Center for Language and Brain, Shenzhen Institute of Neuroscience, Shenzhen, 518057, China |
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| Abstract: | ![]()
The P300 component of the evoked potential was recorded over both hemispheres in order to study interhemispheric differences in the process of perception of subliminal verbal stimuli. The stimuli--subliminal words, neutral and emotional--were presented at random to the left or right visual fields. In response to an unrecognized emotional word, the amplitude of P300 wave increased diffusely over both hemispheres as compared to that to a neutral word, with no changes in interhemispheric differences. The interhemispheric difference changed considerably in the presence of an 'unaccountable' emotion caused by a subliminal word. This suggests a unilateral activation of the right hemisphere and a predominant role of this hemisphere in the cortical organization of the unconscious function 'unaccountable' emotion. |
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