Abstract：
:Deficits in nonverbal vocal expression (e.g., blunted vocal affect, alogia) are a hallmark of schizophrenia and are a focus of the Research Domain Criteria initiative from the National Institute of Mental Health. Results from studies using symptom rating scales suggest that these deficits are profound; on the order of four to six standard deviations. To complement this endeavor, we conducted a meta-analysis of studies employing objective analysis of natural speech in patients with schizophrenia and nonpsychiatric controls. Thirteen studies, collectively including 480 patients with schizophrenia and 326 nonpsychiatric controls, were identified. There was considerable variability across studies in which aspects of vocal communication were examined and in the magnitudes of deficit. Overall, speech production (reflecting alogia) was impaired at a large effects size level (d=-.80; k=13), whereas speech variability (reflecting blunted affect) was much more modest (d=-.36; k=2). Regarding the former, this was largely driven by measures of pause behavior, as opposed to other aspects of speech (e.g., number of words/utterances). On the other hand, ratings of negative symptoms across these studies suggested profound group differences (d=3.54; k=4). These data suggest that only certain aspects of vocal expression are affected in schizophrenia, and highlight major discrepancies between symptom rating and objective-based measures. The discussion centers on advancing objective analysis for understanding vocal expression in schizophrenia and for identifying and defining more homogenous patient subsets for study.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Cohen AS,Mitchell KR,Elvevåg Bdoi
10.1016/j.schres.2014.09.013subject
Has Abstractpub_date
2014-11-01 00:00:00pages
533-8issue
2-3eissn
0920-9964issn
1573-2509pii
S0920-9964(14)00479-4journal_volume
159pub_type
杂志文章,meta分析,评审abstract：BACKGROUND:In schizophrenic psychoses, the normal sexual dimorphism of the brain has been shown to be disrupted or even reversed. Little is known, however, at what time point in emerging psychosis this occurs. We have therefore examined, if these alterations are already present in the at-risk mental state (ARMS) for ps...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2018.03.034
更新日期：2018-09-01 00:00:00
abstract：:Large-scale gene expression studies in schizophrenia (SZ) have generally focused on the dorsolateral prefrontal cortex. Studies of other brain regions have been less frequent and have rarely been performed in the same subjects. We analyzed postmortem gene expression in multiple cortical regions (Brodmann areas 8, 10, ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2005.06.007
更新日期：2005-11-15 00:00:00
abstract：:Abnormality of P300 waveforms of event-related potentials (ERPs) has been suggested to represent an aspect of the pathophysiology of schizophrenia. Previous work points to the contribution of altered neural function in discrete brain regions in the left hemisphere to psychotic symptoms and cognitive deficits of schizo...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2008.01.020
更新日期：2008-04-01 00:00:00
abstract：OBJECTIVE:Examine the association between sedentary behavior and psychiatric symptoms among overweight and obese adults with schizophrenia or schizoaffective disorders (SZO/SA). DESIGN:Randomized clinical trial; Weight Assessment and Intervention in Schizophrenia Treatment (WAIST) Study: baseline data collected 2005-2...
journal_title：Schizophrenia research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.schres.2013.01.010
更新日期：2013-04-01 00:00:00
abstract：OBJECTIVE:Executive dysfunction is a common feature of schizophrenia and bipolar disorder (BP). While deficits in social cognitive abilities, including theory of mind (ToM), have been suggested to be specific to schizophrenia, available evidence suggests that there is also a significant overlap in social cognitive perf...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.06.007
更新日期：2016-10-01 00:00:00
abstract：:Few studies have used self-administered symptom scales as outcome measures with individuals who have schizophrenia. However, with the increase in community-based treatment for the serious and persistently mentally ill and the emphasis on client empowerment, their ability to monitor and report symptoms needs to be asse...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(95)00100-x
更新日期：1996-05-01 00:00:00
abstract：:Prenatal viral infection has been associated with development of schizophrenia and autism. Our laboratory has previously shown that viral infection causes deleterious effects on brain structure and function in mouse offspring following late first trimester (E9) administration of influenza virus. We hypothesized that l...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2007.11.018
更新日期：2008-02-01 00:00:00
abstract：:The accuracy of the WAIS-R seven subtest short form (Ward, L.C., 1990. Prediction of Verbal, Performance and Full Scale IQs from seven subtests of the WAIS-R. J. Clin. Psychol. 46, 436-440) was examined for predicting IQs of 73 inpatients diagnosed with schizophrenia. Results indicated that 93% of the estimated Full S...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(99)00016-x
更新日期：1999-08-23 00:00:00
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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：:Schizophrenia is associated with significant brain abnormalities, including changes in brain metabolites as measured by proton magnetic resonance spectroscopy (MRS). What remains unclear is the extent to which these changes are a consequence of the emergence of psychotic disorders or the result of treatment with antip...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2008.03.012
更新日期：2008-07-01 00:00:00
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journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2010.08.031
更新日期：2010-11-01 00:00:00
abstract：BACKGROUND:Previous literature suggests that better cognitive ability and insight are associated with greater lifetime risk of suicide attempts in schizophrenia, counter to the direction of association in the general population. However, the conjoint association between distinct cognitive domains, insight, and suicidal...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2017.06.013
更新日期：2018-02-01 00:00:00
abstract：BACKGROUND:Proton magnetic resonance spectroscopy (1H-MRS) studies of schizophrenia suggest an effect of the disease or of antipsychotic medications on brain N-acetyl aspartate (NAA), a marker of neuronal viability. We studied in the rat the effect of antipsychotic drugs on NAA in several brain regions where NAA reduct...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(02)00528-5
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND:The Positive and Negative Syndrome Scale (PANSS) total score is widely used to assess antipsychotic efficacy, however schizophrenia is a multi-dimensional disorder. We conducted a 5-factor analysis for evaluating the efficacy of iloperidone vs. placebo across these different domains in the treatment of schiz...
journal_title：Schizophrenia research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.schres.2011.05.018
更新日期：2011-09-01 00:00:00
abstract：BACKGROUND:The Discrimination and Stigma Scale (DISC-12) was specifically developed to measure experienced and anticipated discrimination reported by people with mental health problems. However, the length of the DISC-12 may represent a disadvantage especially in country settings with limited human capacity and infrast...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2019.07.018
更新日期：2019-10-01 00:00:00
abstract：:Cortical thickness may be useful as a treatment response predictor in first-episode (FE) patients with schizophrenia, although this possibility has been scarcely assessed. In this study we assessed the possible relation between cortical thickness in regions of interest selected because of previously reported structura...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2014.06.042
更新日期：2014-09-01 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：:Mismatch negativity (MMN) and P3a are auditory event-related potential (ERP) components that show robust deficits in schizophrenia (SZ) patients and exhibit qualities of endophenotypes, including substantial heritability, test-retest reliability, and trait-like stability. These measures also fulfill criteria for use a...
journal_title：Schizophrenia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.schres.2014.09.042
更新日期：2015-04-01 00:00:00
abstract：BACKGROUND:Negative symptoms are a core feature of schizophrenia. The evolution and trajectory of primary negative symptoms were under-studied. We aimed at evaluating the prevalence and stability of primary negative symptoms, and factors associated with persistent primary negative symptoms in a first-episode sample. M...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2011.09.006
更新日期：2011-12-01 00:00:00
abstract：:Brain abnormalities have been identified in patients with schizophrenia, but what is unclear is whether these changes are progressive over the course of the disorder. In this longitudinal study, hippocampal and temporal lobe volumes were measured at two time points in 30 patients with first episode psychosis (mean fol...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(01)00175-x
更新日期：2001-10-01 00:00:00
abstract：:Numerous studies have described attenuated event-related potential (ERP) component amplitudes in schizophrenia (e.g., P300, Mismatch Negativity (MMN), Error Negativity/Error-Related Negativity (Ne/ERN)). Functional magnetic resonance imaging (fMRI) studies have typically shown decreased recruitment of diverse brain ar...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2009.09.036
更新日期：2009-12-01 00:00:00
abstract：OBJECTIVE:Many rating scales have been in use to evaluate various symptomatic domains, and eventually there are too many scales to be selected and widely utilized in busy real-world settings. Relevant, quick, and user-friendly assessment scales are needed to facilitate measurement-based treatment of schizophrenia. MET...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2008.08.013
更新日期：2008-12-01 00:00:00
abstract：:Left or mixed-handedness, footedness, and eye dominance are thought to indicate abnormalities in lateralization related to schizophrenia. Increased left or mixed-dominance in schizophrenia suggests possible hemispheric abnormalities associated with the disorder. A related body of research suggests that some indication...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2004.04.003
更新日期：2005-01-01 00:00:00
abstract：:Verbal dichotic listening performance was examined in 42 right-handed men and women with DSM-IV-defined schizotypal personality disorder (SPD) and 68 right-handed controls. As expected, both male and female control groups showed a right ear advantage on a verbal dichotic listening task. Although SPD subjects in genera...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2009.04.028
更新日期：2009-12-01 00:00:00
abstract：:Numerous genetic and postmortem studies link N-methyl-d-aspartate receptor (NMDAR) dysfunction with schizophrenia, forming the basis of the popular glutamate hypothesis. Neuronal NMDAR abnormalities are consistently reported from both basic and clinical experiments, however, non-neuronal cells also contain NMDARs, and...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2020.10.004
更新日期：2020-11-11 00:00:00
abstract：:In this study, we examined the preliminary concurrent validity of a brief version of the Prodromal Questionnaire (PQ-B), a self-report screening measure for psychosis risk syndromes. Adolescents and young adults (N=141) who presented consecutively for clinical assessment to one of two early psychosis research clinics ...
journal_title：Schizophrenia research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.schres.2011.03.029
更新日期：2011-06-01 00:00:00
abstract：:The aim of the study was to assess changes in cortical thickness related to the use of n-3 polyunsaturated fatty acids (PUFA) as add-on therapy in patients with first episode schizophrenia. A double-blind randomized controlled study was conducted using a 26-week intervention composed of concentrated fish oil containin...
journal_title：Schizophrenia research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.schres.2017.10.013
更新日期：2018-05-01 00:00:00
abstract：BACKGROUND:Altered motor behavior has consistently been reported in medication-naive adult patients with schizophrenia and first episode psychosis and adults at clinical high risk for psychosis (CHR). This study is the first to evaluate the prevalence of abnormal involuntary movements in a community sample of children ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.04.032
更新日期：2016-07-01 00:00:00
abstract：BACKGROUND:Recent empirical evidence [Maher, B.A., Manschreck, T.C., Linnert, J., Candela, S., 2005. Quantitative assessment of the frequency of normal associations in the utterances of schizophrenia patients and healthy controls. Schizophrenia Research 78, 219-224] shows that schizophrenia patients produce an elevated...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2007.06.009
更新日期：2007-09-01 00:00:00
abstract：BACKGROUND:Patients with schizophrenia and comorbid drug use disorders (DUD) have a severe course of illness. Despite strong evidence that drug use can exacerbate psychotic symptoms, we have limited knowledge of how specific drugs may increase risk of schizophrenia readmission in this group. This study aimed to assess ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2017.09.026
更新日期：2018-05-01 00:00:00
