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Margaret A Niznikiewicz - One of the best experts on this subject based on the ideXlab platform.
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altered attentional processing of happy Prosody in schizophrenia
Schizophrenia Research, 2019Co-Authors: Ana P Pinheiro, Margaret A NiznikiewiczAbstract:Abstract Background Abnormalities in emotional Prosody processing have been consistently reported in schizophrenia. Emotionally salient changes in vocal expressions attract attention in social interactions. However, it remains to be clarified how attention and emotion interact during voice processing in schizophrenia. The current study addressed this question by examining the P3b event-related potential (ERP) component. Method The P3b was elicited with a modified oddball task, in which frequent (p = .84) neutral stimuli were intermixed with infrequent (p = .16) task-relevant emotional (happy or angry) targets. Prosodic speech was presented in two conditions - with intelligible (semantic content condition - SCC) or unintelligible semantic content (Prosody-only condition - POC). Fifteen chronic schizophrenia patients and 15 healthy controls were instructed to silently count the target vocal sounds. Results Compared to controls, P3b amplitude was specifically reduced for happy prosodic stimuli in schizophrenia, irrespective of semantic status. Groups did not differ in the processing of neutral standards or angry targets. Discussion The selectively reduced P3b for happy Prosody in schizophrenia suggests top-down attentional resources were less strongly engaged by positive relative to negative Prosody, reflecting alterations in the evaluation of the emotional salience of the voice. These results highlight the role played by higher-order processes in emotional Prosody dysfunction in schizophrenia.
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sensory based and higher order operations contribute to abnormal emotional Prosody processing in schizophrenia an electrophysiological investigation
Psychological Medicine, 2013Co-Authors: Ana P Pinheiro, Robert W. Mccarley, E Del Re, J Mezin, Paul G Nestor, Andreia Schurt Rauber, Oscar F Goncalves, Margaret A NiznikiewiczAbstract:BACKGROUND Schizophrenia is characterized by deficits in emotional Prosody (EP) perception. However, it is not clear which stages of processing Prosody are abnormal and whether the presence of semantic content contributes to the abnormality. This study aimed to examine event-related potential (ERP) correlates of EP processing in 15 chronic schizophrenia individuals and 15 healthy controls. METHOD A total of 114 sentences with neutral semantic content [sentences with semantic content (SSC) condition] were generated by a female speaker (38 with happy, 38 with angry, and 38 with neutral intonation). The same sentences were synthesized and presented in the 'pure Prosody' sentences (PPS) condition where semantic content was unintelligible. RESULTS Group differences were observed for N100 and P200 amplitude: patients were characterized by more negative N100 for SSC, and more positive P200 for angry and happy SSC and happy PPS. Correlations were found between delusions and P200 amplitude for happy SSC and PPS. Higher error rates in the recognition of EP were also observed in schizophrenia: higher error rates in neutral SSC were associated with reduced N100, and higher error rates in angry SSC were associated with reduced P200. CONCLUSIONS These results indicate that abnormalities in Prosody processing occur at the three stages of EP processing, and are enhanced in SSC. Correlations between P200 amplitude for happy Prosody and delusions suggest a role that abnormalities in the processing of emotionally salient acoustic cues may play in schizophrenia symptomatology. Correlations between ERP and behavioral data point to a relationship between early sensory abnormalities and Prosody recognition in schizophrenia.
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prosodic abnormalities in schizotypal personality disorder
Schizophrenia Research, 2012Co-Authors: Chandlee C Dickey, Margaret A Niznikiewicz, Martina M Voglmaier, Robert W. Mccarley, Lawrence P PanychAbstract:Objective Patients with schizophrenia speak with blunted vocal affect but little is known regarding the Prosody of persons with schizotypal personality disorder (SPD). This work examined expressive Prosody in SPD, its relationship to brain structure, and outlined a framework for measuring elements of Prosody in clinical populations.
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factors in sensory processing of Prosody in schizotypal personality disorder an fmri experiment
Schizophrenia Research, 2010Co-Authors: Chandlee C Dickey, Margaret A Niznikiewicz, Martina M Voglmaier, Lawrence P Panych, Istvan A Morocz, Daniel Minney, Usman KhanAbstract:Introduction Persons diagnosed with schizophrenia demonstrate deficits in Prosody recognition. To examine Prosody along the schizophrenia spectrum, antipsychotic-naive schizotypal personality disorder (SPD) subjects and healthy control subjects were compared. It was hypothesized that SPD subjects would perform more poorly; with cognitive and demographic factors contributing to the poor performance. The superior temporal gyrus (STG) was selected as the region-of-interest (ROI) given its known abnormalities in SPD and its important role in the processing of Prosody.
Christoph Scheepers - One of the best experts on this subject based on the ideXlab platform.
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Direct speech quotations promote low relative-clause attachment in silent reading of English
Cognition, 2018Co-Authors: Christoph ScheepersAbstract:Abstract The implicit Prosody hypothesis (Fodor, 1998, 2002) proposes that silent reading coincides with a default, implicit form of Prosody to facilitate sentence processing. Recent research demonstrated that a more vivid form of implicit Prosody is mentally simulated during silent reading of direct speech quotations (e.g., Mary said, “This dress is beautiful”), with neural and behavioural consequences (e.g., Yao, Belin, & Scheepers, 2011; Yao & Scheepers, 2011). Here, we explored the relation between ‘default’ and ‘simulated’ implicit Prosody in the context of relative-clause (RC) attachment in English. Apart from confirming a general low RC-attachment preference in both production (Experiment 1) and comprehension (Experiments 2 and 3), we found that during written sentence completion (Experiment 1) or when reading silently (Experiment 2), the low RC-attachment preference was reliably enhanced when the critical sentences were embedded in direct speech quotations as compared to indirect speech or narrative sentences. However, when reading aloud (Experiment 3), direct speech did not enhance the general low RC-attachment preference. The results from Experiments 1 and 2 suggest a quantitative boost to implicit Prosody (via auditory perceptual simulation) during silent production/comprehension of direct speech. By contrast, when reading aloud (Experiment 3), Prosody becomes equally salient across conditions due to its explicit nature; indirect speech and narrative sentences thus become as susceptible to Prosody-induced syntactic biases as direct speech. The present findings suggest a shared cognitive basis between default implicit Prosody and simulated implicit Prosody, providing a new platform for studying the effects of implicit Prosody on sentence processing.
Chandlee C Dickey - One of the best experts on this subject based on the ideXlab platform.
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prosodic abnormalities in schizotypal personality disorder
Schizophrenia Research, 2012Co-Authors: Chandlee C Dickey, Margaret A Niznikiewicz, Martina M Voglmaier, Robert W. Mccarley, Lawrence P PanychAbstract:Objective Patients with schizophrenia speak with blunted vocal affect but little is known regarding the Prosody of persons with schizotypal personality disorder (SPD). This work examined expressive Prosody in SPD, its relationship to brain structure, and outlined a framework for measuring elements of Prosody in clinical populations.
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factors in sensory processing of Prosody in schizotypal personality disorder an fmri experiment
Schizophrenia Research, 2010Co-Authors: Chandlee C Dickey, Margaret A Niznikiewicz, Martina M Voglmaier, Lawrence P Panych, Istvan A Morocz, Daniel Minney, Usman KhanAbstract:Introduction Persons diagnosed with schizophrenia demonstrate deficits in Prosody recognition. To examine Prosody along the schizophrenia spectrum, antipsychotic-naive schizotypal personality disorder (SPD) subjects and healthy control subjects were compared. It was hypothesized that SPD subjects would perform more poorly; with cognitive and demographic factors contributing to the poor performance. The superior temporal gyrus (STG) was selected as the region-of-interest (ROI) given its known abnormalities in SPD and its important role in the processing of Prosody.
Lawrence P Panych - One of the best experts on this subject based on the ideXlab platform.
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prosodic abnormalities in schizotypal personality disorder
Schizophrenia Research, 2012Co-Authors: Chandlee C Dickey, Margaret A Niznikiewicz, Martina M Voglmaier, Robert W. Mccarley, Lawrence P PanychAbstract:Objective Patients with schizophrenia speak with blunted vocal affect but little is known regarding the Prosody of persons with schizotypal personality disorder (SPD). This work examined expressive Prosody in SPD, its relationship to brain structure, and outlined a framework for measuring elements of Prosody in clinical populations.
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factors in sensory processing of Prosody in schizotypal personality disorder an fmri experiment
Schizophrenia Research, 2010Co-Authors: Chandlee C Dickey, Margaret A Niznikiewicz, Martina M Voglmaier, Lawrence P Panych, Istvan A Morocz, Daniel Minney, Usman KhanAbstract:Introduction Persons diagnosed with schizophrenia demonstrate deficits in Prosody recognition. To examine Prosody along the schizophrenia spectrum, antipsychotic-naive schizotypal personality disorder (SPD) subjects and healthy control subjects were compared. It was hypothesized that SPD subjects would perform more poorly; with cognitive and demographic factors contributing to the poor performance. The superior temporal gyrus (STG) was selected as the region-of-interest (ROI) given its known abnormalities in SPD and its important role in the processing of Prosody.
Martina M Voglmaier - One of the best experts on this subject based on the ideXlab platform.
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prosodic abnormalities in schizotypal personality disorder
Schizophrenia Research, 2012Co-Authors: Chandlee C Dickey, Margaret A Niznikiewicz, Martina M Voglmaier, Robert W. Mccarley, Lawrence P PanychAbstract:Objective Patients with schizophrenia speak with blunted vocal affect but little is known regarding the Prosody of persons with schizotypal personality disorder (SPD). This work examined expressive Prosody in SPD, its relationship to brain structure, and outlined a framework for measuring elements of Prosody in clinical populations.
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factors in sensory processing of Prosody in schizotypal personality disorder an fmri experiment
Schizophrenia Research, 2010Co-Authors: Chandlee C Dickey, Margaret A Niznikiewicz, Martina M Voglmaier, Lawrence P Panych, Istvan A Morocz, Daniel Minney, Usman KhanAbstract:Introduction Persons diagnosed with schizophrenia demonstrate deficits in Prosody recognition. To examine Prosody along the schizophrenia spectrum, antipsychotic-naive schizotypal personality disorder (SPD) subjects and healthy control subjects were compared. It was hypothesized that SPD subjects would perform more poorly; with cognitive and demographic factors contributing to the poor performance. The superior temporal gyrus (STG) was selected as the region-of-interest (ROI) given its known abnormalities in SPD and its important role in the processing of Prosody.
