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Open AccessArticle

The Deficit of Multimodal Perception of Congruent and Non-Congruent Fearful Expressions in Patients with Schizophrenia: The ERP Study

1
Institute of Higher Nervous Activity and Neurophysiology of RAS, 117485 Moscow, Russia
2
The Pushkin State Russian Language Institute, 117485 Moscow, Russia
3
Psychiatric Clinical Hospital No. 1 Named after ON. Alekseeva of the Moscow City Health Department, 117152 Moscow, Russia
4
Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, National Research University Higher School of Economics, 109548 Moscow, Russia
*
Author to whom correspondence should be addressed.
Brain Sci. 2021, 11(1), 96; https://doi.org/10.3390/brainsci11010096
Received: 9 December 2020 / Revised: 6 January 2021 / Accepted: 7 January 2021 / Published: 13 January 2021
(This article belongs to the Section Clinical Neuroscience)
Emotional dysfunction, including flat affect and emotional perception deficits, is a specific symptom of schizophrenia disorder. We used a modified multimodal odd-ball paradigm with fearful facial expressions accompanied by congruent and non-congruent emotional vocalizations (sounds of women screaming and laughing) to investigate the impairment of emotional perception and reactions to other people’s emotions in schizophrenia. We compared subjective ratings of emotional state and event-related potentials (EPPs) in response to congruent and non-congruent stimuli in patients with schizophrenia and healthy controls. The results showed the altered multimodal perception of fearful stimuli in patients with schizophrenia. The amplitude of N50 was significantly higher for non-congruent stimuli than congruent ones in the control group and did not differ in patients. The P100 and N200 amplitudes were higher in response to non-congruent stimuli in patients than in controls, implying impaired sensory gating in schizophrenia. The observed decrease of P3a and P3b amplitudes in patients could be associated with less attention, less emotional arousal, or incorrect interpretation of emotional valence, as patients differed from healthy controls in the emotion scores of non-congruent stimuli. The difficulties in identifying the incoherence of facial and audial components of emotional expression could be significant in understanding the psychopathology of schizophrenia. View Full-Text
Keywords: EEG; event-related potentials; schizophrenia; fearful expressions; perception; non-congruent sounds EEG; event-related potentials; schizophrenia; fearful expressions; perception; non-congruent sounds
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MDPI and ACS Style

Portnova, G.V.; Maslennikova, A.V.; Zakharova, N.V.; Martynova, O.V. The Deficit of Multimodal Perception of Congruent and Non-Congruent Fearful Expressions in Patients with Schizophrenia: The ERP Study. Brain Sci. 2021, 11, 96. https://doi.org/10.3390/brainsci11010096

AMA Style

Portnova GV, Maslennikova AV, Zakharova NV, Martynova OV. The Deficit of Multimodal Perception of Congruent and Non-Congruent Fearful Expressions in Patients with Schizophrenia: The ERP Study. Brain Sciences. 2021; 11(1):96. https://doi.org/10.3390/brainsci11010096

Chicago/Turabian Style

Portnova, Galina V.; Maslennikova, Aleksandra V.; Zakharova, Natalya V.; Martynova, Olga V. 2021. "The Deficit of Multimodal Perception of Congruent and Non-Congruent Fearful Expressions in Patients with Schizophrenia: The ERP Study" Brain Sci. 11, no. 1: 96. https://doi.org/10.3390/brainsci11010096

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