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Review

Emotional Prosody Processing in Schizophrenic Patients: A Selective Review and Meta-Analysis

by 1, 1,* and 2,*
1
Institute of Cross-Linguistic Processing and Cognition, School of Foreign Languages, Shanghai Jiao Tong University, Shanghai 200240, China
2
Department of Speech-Language-Hearing Sciences & Center for Neurobehavioral Development, University of Minnesota, Twin Cities, MN 55455, USA
*
Authors to whom correspondence should be addressed.
J. Clin. Med. 2018, 7(10), 363; https://doi.org/10.3390/jcm7100363
Received: 13 August 2018 / Revised: 10 October 2018 / Accepted: 14 October 2018 / Published: 17 October 2018
(This article belongs to the Section Psychiatry)
Emotional prosody (EP) has been increasingly recognized as an important area of schizophrenic patients’ dysfunctions in their language use and social communication. The present review aims to provide an updated synopsis on emotional prosody processing (EPP) in schizophrenic disorders, with a specific focus on performance characteristics, the influential factors and underlying neural mechanisms. A literature search up to 2018 was conducted with online databases, and final selections were limited to empirical studies which investigated the prosodic processing of at least one of the six basic emotions in patients with a clear diagnosis of schizophrenia without co-morbid diseases. A narrative synthesis was performed, covering the range of research topics, task paradigms, stimulus presentation, study populations and statistical power with a quantitative meta-analytic approach in Comprehensive Meta-Analysis Version 2.0. Study outcomes indicated that schizophrenic patients’ EPP deficits were consistently observed across studies (d = −0.92, 95% CI = −1.06 < δ < −0.78), with identification tasks (d = −0.95, 95% CI = −1.11 < δ < −0.80) being more difficult to process than discrimination tasks (d = −0.74, 95% CI = −1.03 < δ < −0.44) and emotional stimuli being more difficult than neutral stimuli. Patients’ performance was influenced by both participant- and experiment-related factors. Their social cognitive deficits in EP could be further explained by right-lateralized impairments and abnormalities in primary auditory cortex, medial prefrontal cortex and auditory-insula connectivity. The data pointed to impaired pre-attentive and attentive processes, both of which played important roles in the abnormal EPP in the schizophrenic population. The current selective review and meta-analysis support the clinical advocacy of including EP in early diagnosis and rehabilitation in the general framework of social cognition and neurocognition deficits in schizophrenic disorders. Future cross-sectional and longitudinal studies are further suggested to investigate schizophrenic patients’ perception and production of EP in different languages and cultures, modality forms and neuro-cognitive domains. View Full-Text
Keywords: emotional prosody processing; schizophrenia; meta-analysis emotional prosody processing; schizophrenia; meta-analysis
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MDPI and ACS Style

Lin, Y.; Ding, H.; Zhang, Y. Emotional Prosody Processing in Schizophrenic Patients: A Selective Review and Meta-Analysis. J. Clin. Med. 2018, 7, 363. https://doi.org/10.3390/jcm7100363

AMA Style

Lin Y, Ding H, Zhang Y. Emotional Prosody Processing in Schizophrenic Patients: A Selective Review and Meta-Analysis. Journal of Clinical Medicine. 2018; 7(10):363. https://doi.org/10.3390/jcm7100363

Chicago/Turabian Style

Lin, Yi, Hongwei Ding, and Yang Zhang. 2018. "Emotional Prosody Processing in Schizophrenic Patients: A Selective Review and Meta-Analysis" Journal of Clinical Medicine 7, no. 10: 363. https://doi.org/10.3390/jcm7100363

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