Abstract:
BACKGROUND:Aprosody, or flattened speech intonation, is a recognized negative symptom of schizophrenia, though it has rarely been studied from a linguistic/phonological perspective. To bring the latest advances in computational linguistics to the phenomenology of schizophrenia and related psychotic disorders, a clinical first-episode psychosis research team joined with a phonetics/computational linguistics team to conduct a preliminary, proof-of-concept study. METHODS:Video recordings from a semi-structured clinical research interview were available from 47 first-episode psychosis patients. Audio tracks of the video recordings were extracted, and after review of quality, 25 recordings were available for phonetic analysis. These files were de-noised and a trained phonologist extracted a 1-minute sample of each patient's speech. WaveSurfer 1.8.5 was used to create, from each speech sample, a file of formant values (F0, F1, F2, where F0 is the fundamental frequency and F1 and F2 are resonance bands indicating the moment-by-moment shape of the oral cavity). Variability in these phonetic indices was correlated with severity of Positive and Negative Syndrome Scale negative symptom scores using Pearson correlations. RESULTS:A measure of variability of tongue front-to-back position-the standard deviation of F2-was statistically significantly correlated with the severity of negative symptoms (r=-0.446, p=0.03). CONCLUSION:This study demonstrates a statistically significant and meaningful correlation between negative symptom severity and phonetically measured reductions in tongue movements during speech in a sample of first-episode patients just initiating treatment. Further studies of negative symptoms, applying computational linguistics methods, are warranted.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Covington MA,Lunden SL,Cristofaro SL,Wan CR,Bailey CT,Broussard B,Fogarty R,Johnson S,Zhang S,Compton MTdoi
10.1016/j.schres.2012.10.005subject
Has Abstractpub_date
2012-12-01 00:00:00pages
93-5issue
1-3eissn
0920-9964issn
1573-2509pii
S0920-9964(12)00577-4journal_volume
142pub_type
杂志文章abstract::Gray matter brain volume decreases have been found in patients with schizophrenia as compared to healthy control subjects measured by using Magnetic Resonance Imaging (MRI). An association has been suggested between decreased gray matter volume and poor outcome in chronically ill patients with schizophrenia. The prese...
journal_title:Schizophrenia research
pub_type: 杂志文章,多中心研究
doi:10.1016/s0920-9964(03)00018-5
更新日期:2003-11-01 00:00:00
abstract::Poly(A+) mRNA was extracted from the post-mortem brain of schizophrenics (9 subjects), unipolar depressives (5 subjects) and controls (10 subjects) and used to direct the in vitro translation of radiolabelled protein in a cell-free reticulocyte-lysate system. Protein species were analysed on two-dimensional gels. Over...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/0920-9964(92)90002-m
更新日期:1992-03-01 00:00:00
abstract::The current study examined the factor structure of the Brief Negative Symptom Scale (BNSS), a next-generation negative symptom rating instrument developed in response to the NIMH-sponsored Consensus Development Conference on Negative Symptoms. Participants included 146 individuals with a DSM-IV diagnosis of schizophre...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2012.09.007
更新日期:2012-12-01 00:00:00
abstract::The exact mechanisms of action of some antipsychotics and mood stabilizers have not been elucidated. Response to these medications can vary among individuals. Recent studies indicate that infection with the parasite Toxoplasma gondii may contribute to the symptoms of schizophrenia in some individuals. We investigated ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(02)00357-2
更新日期:2003-08-01 00:00:00
abstract::The aim of this paper is to provide a brief review of mitochondrial structure as it relates to function and then present abnormalities in mitochondria in postmortem schizophrenia with a focus on ultrastructure. Function, morphology, fusion, fission, motility, ΔΨmem, ATP production, mitochondrial derived vesicles, and ...
journal_title:Schizophrenia research
pub_type: 杂志文章,评审
doi:10.1016/j.schres.2017.01.056
更新日期:2017-09-01 00:00:00
abstract::We conducted data-mining analyses of genome wide association (GWA) studies of the CATIE and MGS-GAIN datasets, and found 13 markers in the two physically linked genes, PTPN21 and EML5, showing nominally significant association with schizophrenia. Linkage disequilibrium (LD) analysis indicated that all 7 markers from P...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2011.06.023
更新日期:2011-09-01 00:00:00
abstract::The guarantee of perceptual coherence for events through everyday life situations depends upon the capacity to correctly integrate series of multi-sensory experiences. Patients with schizophrenia have been shown to reveal a deficit in integrating, i.e., "binding", perceptual information together. However, results in t...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2007.08.013
更新日期:2007-12-01 00:00:00
abstract::Stigma can be a major stressor for individuals with schizophrenia and other mental illnesses. It is unclear, however, why some stigmatized individuals appraise stigma as more stressful, while others feel they can cope with the potential harm posed by public prejudice. We tested the hypothesis that the level of perceiv...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2009.01.006
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Bullying victimisation has been suggested to contribute to paranoid ideation in general population samples and recent evidence found that individuals with an ultra high risk (UHR) for psychosis are twice as likely to have been bullied than controls. AIMS:This study sought to examine whether a history of bul...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2015.08.029
更新日期:2015-10-01 00:00:00
abstract::Impaired fiber bundle connectivity between brain regions is a key neuropathological finding in schizophrenia. Symptom dimensions in schizophrenia can be clustered into factor models. Single syndromes have been related to grey and white matter brain structure alterations. We associated all core syndromes of schizophren...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2016.11.045
更新日期:2017-06-01 00:00:00
abstract::Individuals with schizophrenia have difficulties in emotional information processing. A relationship between behavioral variables of emotional processing and structural amygdala alterations in schizophrenia has been proposed but not shown, yet. Morphological studies of amygdala size in schizophrenia have yielded incon...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2004.02.023
更新日期:2004-12-01 00:00:00
abstract::Variable levels of essential polyunsaturated fatty acids (EPUFAs) reported in schizophrenia are likely due to differences in age, sex, ethnicity, diet, life style and treatments. The present study examined the EPUFAs levels in plasma, RBC and CSF in never-medicated first-episode psychotic patients and normal controls ...
journal_title:Schizophrenia research
pub_type: 杂志文章,多中心研究
doi:10.1016/j.schres.2007.09.036
更新日期:2008-01-01 00:00:00
abstract::Studies suggest that the affective response is impaired in both schizophrenia and adolescent offspring of schizophrenia patients. Adolescent offspring of patients are developmentally vulnerable to impairments in several domains, including affective responding, yet the bases of these impairments and their relation to n...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2010.07.023
更新日期:2010-11-01 00:00:00
abstract:INTRODUCTION:Widespread white matter abnormalities and alterations in glutamate levels have been reported in patients with schizophrenia. We hypothesized that alterations in white matter integrity and glutamate levels in individuals at clinical high risk (CHR) for psychosis are associated with the subsequent developmen...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2020.06.006
更新日期:2020-06-25 00:00:00
abstract::Long-stay patients constitute a small proportion of all patients with schizophrenia, but in both VA and state psychiatric systems these patients account for a majority of the costs associated with treatment of the illness. VA and state patients would be expected to differ in several respects, including age at onset an...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(99)00182-6
更新日期:2000-05-25 00:00:00
abstract:OBJECTIVES:Gender differences in psychotic disorder have been observed in terms of illness onset and course; however, past research has been limited by inconsistencies between studies and the lack of epidemiological representative of samples assessed. Thus, the aim of this study was to elucidate gender differences in a...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2009.07.002
更新日期:2009-10-01 00:00:00
abstract::Studies defining the course and outcome of individuals experiencing their first episode (FE) of psychosis generally report an improvement in symptoms and functioning. Today, many FE patients are treated in specialized early psychosis programs. Little is known what happens to these individuals after discharge from thes...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2008.08.032
更新日期:2008-12-01 00:00:00
abstract::Cognitive impairments have been shown to predict impairments in adaptive functioning in patients with chronic schizophrenia and to be more predictive of overall outcome than positive or negative symptoms of the illness. Both adaptive and cognitive impairments are multidimensional, and it is possible that correlations ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/S0920-9964(97)00068-6
更新日期:1997-10-30 00:00:00
abstract::The 24-h profiles of plasma melatonin and cortisol were evaluated in 7 drug-free male paranoid schizophrenics and in 7 healthy subjects matched to the patients for age, sex, body weight, height and season of testing. Blood samples were obtained at 20.00, 22.00, 24.00, 01.00, 02.00, 06.00, 08.00 and 12.00 h. Light was ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/0920-9964(92)90077-i
更新日期:1992-04-01 00:00:00
abstract:BACKGROUND:Clozapine is the drug of choice for patients with unsatisfactory response to routine antipsychotic treatment. Polypharmacy is widely used among patients having clozapine-resistant schizophrenia, although no solid evidence exists for any effective augmentation therapy for this patient population. We aimed to ...
journal_title:Schizophrenia research
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.schres.2009.01.002
更新日期:2009-04-01 00:00:00
abstract::Schizophrenia is a multifactorial disease in both clinical and molecular terms. Thus, depicting the molecular aspects of the disease will contribute to the understanding of its biochemical mechanisms and consequently may lead to the development of new treatment strategies. The protein phosphorylation/dephosphorylation...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2016.03.022
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:Tumor necrosis factor alpha (TNFalpha), a cytokine involved in inflammatory processes, has been implicated in the pathophysiology of schizophrenia. The chromosomal location in the major histocompatibility complex (MHC) region on 6p21.1-21.3, a region with evidence for linkage, suggests a role in susceptibili...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(02)00534-0
更新日期:2003-12-01 00:00:00
abstract::Insight was investigated in 180 individuals consecutively admitted to a comprehensive early psychosis treatment program. Insight was assessed on admission and after 3, 6 and 12 months. Insight improved significantly over 12 months, and was negatively correlated with both positive and negative symptoms, and positively ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/S0920-9964(03)00047-1
更新日期:2004-04-01 00:00:00
abstract::The positive and negative syndrome scale (PANSS) is widely used in psychiatric research. Reflecting this common use, considerable attention has been applied to the psychometric properties of this instrument. However, despite the publication of numerous studies and analyses, it remains uncertain how best data from the ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(02)00295-5
更新日期:2003-05-01 00:00:00
abstract::Motor abnormalities (MAs) may be already evidenced long before the beginning of illness and are highly prevalent in psychosis. However, the extent to which the whole range of MAs are related to cognitive impairment in psychosis remains understudied. This study aimed to examine comparatively the relationships between t...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2017.10.035
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVE:Quality of life (QOL) is considered an important outcome in the treatment of schizophrenia, but the determinants of QOL are poorly understood in this population. Furthermore, previous studies have relied on combined measures of subjective QOL (usually defined as life satisfaction) and objective QOL (usually d...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2007.09.001
更新日期:2008-01-01 00:00:00
abstract:INTRODUCTION:HTR2A gene has been the subject of numerous studies in psychiatric genetics because LSD, which resembles serotonin causes psychosis and atypical antipsychotic drugs target the HTR2A receptor. However, evidence for the role of HTR2A polymorphism(s) in schizophrenia (SCZ) and bipolar disorder (BD) has been e...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2011.04.007
更新日期:2011-07-01 00:00:00
abstract::Two previous studies suggested that childhood cat ownership is a possible risk factor for later developing schizophrenia or other serious mental illness. We therefore used an earlier, large NAMI questionnaire to try and replicate this finding. The results were the same, suggesting that cat ownership in childhood is si...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2015.03.036
更新日期:2015-06-01 00:00:00
abstract::Disrupted-in-Schizophrenia 1 (DISC1), a strong candidate gene for schizophrenia and other mental disorders, regulates neurodevelopmental processes including neurogenesis, neuronal migration, neurite outgrowth and spine development. Glycogen synthase kinase-3 (GSK3) directly interacts with DISC1 and also plays a role i...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2011.03.032
更新日期:2011-06-01 00:00:00
abstract::Evidence from event-related-potential (ERP) studies has repeatedly shown differences in the perception and processing of auditory stimuli in children with dyslexia compared to control children. The mismatch negativity (MMN) - an ERP component reflecting passive auditory change detection ability - has been found to be ...
journal_title:Schizophrenia research
pub_type: 杂志文章,评审
doi:10.1016/j.schres.2017.07.010
更新日期:2018-01-01 00:00:00