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Pinheiro AP, Del Re E, Mezin J, Nestor PG, Rauber A, McCarley RW, Gonçalves OF, Niznikiewicz MA. Sensory-based and higher-order operations contribute to abnormal emotional prosody processing in schizophrenia: an electrophysiological investigation. Psychol Med . 2012 Jul 10 ; :1-16. PubMed Abstract

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Comment by:  Jonathan WynnCarol Jahshan
Submitted 9 August 2012 Posted 9 August 2012

Patients with schizophrenia have difficulties identifying and interpreting other people’s emotions from the tone of their voice. In this study, Pinheiro and colleagues used event-related potentials (ERPs) to shed light on the mechanisms underlying poor emotional prosody recognition in schizophrenia. Specifically, ERPs and behavioral measures were used to track three successive stages of prosody recognition as proposed by Schirmer and Kotz (Schirmer and Kotz, 2006). The N100 ERP was used to track early sensory processing of the auditory signal; the P200 ERP was used to track the detection of emotionally salient cues; and behavioral responses were used to measure the cognitive evaluation of emotional stimuli. The results revealed a complex set of dysfunctions extending from the earliest stages of auditory processing to the later stages of higher-order emotional prosody processing in the patient sample. The N100 and P200 were both smaller in patients compared to controls; accurate behavioral identification of prosody was also...  Read more

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