Abstract：
OBJECTIVE:The aim of this study was to test the goodness-of-fit of all previously published five-factor models of the Positive and Negative Syndrome Scale (PANSS). METHODS:We used confirmatory factor analysis (CFA) with a large data set (N = 5769). RESULTS:The different subsamples were tested for heterogeneity and were found to be homogeneous. This indicates that despite variability in age, sex, duration of illness, admission status, etc., in the different subsamples, the structure of symptoms is the same for all patients with schizophrenia. Although previous research has shown that a five-factor model fits the data better than models with three or four factors, no satisfactory fit for any of the 25 published five-factor models was found with CFA. CONCLUSIONS:Variability in age, sex, admission status and duration of illness has no substantial effect on the structure of symptoms in schizophrenia. The lack of fit can be caused by ill-defined items that aim to measure several properties in a single rating. Another explanation is that well-defined symptoms can have two or more causes. Then a double or triple loading item should not be discarded, but included because the complexity of symptoms in schizophrenia is represented by these multiple loadings. Such a complex model not only needs confirmation by CFA, but also has to be proven stable. A 10-fold cross-validation is suggested to develop a complex and stable model.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
van der Gaag M,Cuijpers A,Hoffman T,Remijsen M,Hijman R,de Haan L,van Meijel B,van Harten PN,Valmaggia L,de Hert M,Wiersma Ddoi
10.1016/j.schres.2006.04.001subject
Has Abstractpub_date
2006-07-01 00:00:00pages
273-9issue
1-3eissn
0920-9964issn
1573-2509pii
S0920-9964(06)00170-8journal_volume
85pub_type
杂志文章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：:Executive dysfunction and language impairment are the most prominent neuropsychological models of formal thought disorder (FTD) in schizophrenia. However, available studies have provided contradictory findings regarding the accuracy of these models. Furthermore, specific neurocognitive underpinnings of positive FTD (P...
journal_title：Schizophrenia research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.schres.2019.05.025
更新日期：2019-07-01 00:00:00
abstract：BACKGROUND:Targeting glutamatergic dysfunction provides an exciting opportunity to improve cognitive impairment in schizophrenia. One treatment approach has targeted inadequate antioxidant defenses at glutamatergic synapses. Animal and human data suggest NMDA antagonists worsen executive cognitive controls--e.g. increa...
journal_title：Schizophrenia research
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.schres.2012.10.001
更新日期：2012-12-01 00:00:00
abstract：:Sustained attention deficits and high rates of smoking are often observed in patients with schizophrenia. This has led to the hypothesis that patients may smoke as an attempt to ameliorate cognitive deficits related to abnormal nicotinic structure and function. Continuous performance tasks (CPT) are often used to inde...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2013.06.012
更新日期：2013-08-01 00:00:00
abstract：:Astrocytic markers glial fibrillary acidic protein (GFAP) and connexin 43 (CX43) are known to have altered expression in brains of subjects with psychiatric disorders including autism and major depression. The current study investigated whether GFAP and CX43 expressions are affected by several commonly used psychotrop...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2008.05.016
更新日期：2008-09-01 00:00:00
abstract：:Poor insight into the neurocognitive deficits in schizophrenia-spectrum disorders may have significant clinical implications for treatment. The purpose of this study was to replicate and extend the psychometric findings initially reported on the Measure of Insight into Cognition Clinician-Rated (MIC-CR) and Self-Repor...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2011.10.002
更新日期：2012-01-01 00:00:00
abstract：:Three-channel actometry was used to study neuroleptic-induced akathisia (NIA), a common and often serious disorder in association of traditional neuroleptic therapy. The aim was to explore the diagnostic possibilities of actometry in NIA and to examine in detail the motor phenomenology of the disorder in detail. The a...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(99)00045-6
更新日期：1999-11-30 00:00:00
abstract：BACKGROUND:Aberrations in body perception are common in psychotic disorders. The insula and temporoparietal junction (TPJ) are involved in body ownership and spatial perception suggesting that abnormal structure of these regions might be related to the expression of perceptual aberrations in psychosis. METHODS:58 indi...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.10.005
更新日期：2017-01-01 00:00:00
abstract：:Catatonia is a severe psychomotor syndrome that frequently occurs in patients with schizophrenia spectrum disorders (SSD). Accumulating neuroimaging evidence suggests orbitofrontal, frontoparietal and cerebellar network dysfunction in catatonia. Very little is known about contributions of brainstem regions (as part of...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2020.09.025
更新日期：2020-10-01 00:00:00
abstract：BACKGROUND:Some studies have suggested that antipsychotic-naïve patients with nonaffective psychosis (NAP) have glucose intolerance. AIMS:To conduct a systematic review and meta-analysis of fasting glucose (FG), two hour values in the oral glucose tolerance test (2HG), fasting insulin concentration (INS), and insulin ...
journal_title：Schizophrenia research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.schres.2016.09.026
更新日期：2017-01-01 00:00:00
abstract：BACKGROUND:Suicide and violence often co-occur in the general population as well as in mentally ill individuals. Few studies, however, have assessed whether these suicidal behaviors are predictive of violence risk in mental illness. AIMS:The aim of this study is to investigate whether suicidal behaviors, including sui...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2014.02.001
更新日期：2014-04-01 00:00:00
abstract：:The dopamine hypothesis of schizophrenia was formulated 30 years ago and postulates that the symptoms of schizophrenia are related to an increased central dopaminergic neurotransmission. The two fundamental assumptions that underlay the dopamine hypothesis of schizophrenia have received support from brain imaging stud...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(97)00121-7
更新日期：1997-12-19 00:00:00
abstract：:Given the morbidity and difficulty of treating psychotic disorders, including schizophrenia, there has been a move toward identifying and treating adolescents and young adults who appear to be clinically at risk or "prodromal" to psychosis. The field now has greater specificity in identification, with rates of 40-50% ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2004.05.021
更新日期：2005-03-01 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：: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：:We developed and validated a self-administered questionnaire (Subjective Quality of Life Analysis, S.QUA.L.A.) to measure subjective quality of life. S.QUA.L.A. is a multidimensional instrument. This scale includes 22 domains of life. It covers traditional areas (food, family relation etc)., and more abstract aspects ...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2004.09.017
更新日期：2005-07-01 00:00:00
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 clinica...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2012.10.005
更新日期：2012-12-01 00:00:00
abstract：BACKGROUND:In many natural audiovisual events (e.g., the sight of a face articulating the syllable /ba/), the visual signal precedes the sound and thus allows observers to predict the onset and the content of the sound. In healthy adults, the N1 component of the event-related brain potential (ERP), reflecting neural ac...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2013.04.038
更新日期：2013-07-01 00:00:00
abstract：:A total of 57 schizophrenic patients (of which 17 were first-episode, neuroleptic naive) and 76 healthy controls were screened for anti-histone IgG antibodies using an enzyme immunoassay (ELISA). All patients had significantly higher anti-histone antibody titers than controls (t = 3.1, p less than 0.003). Previously m...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(92)90073-e
更新日期：1992-04-01 00:00:00
abstract：:Task set maintenance and switching deficits are robust in schizophrenia. However, little is known about how these constructs are related to one another. The development of an improved understanding of set switching and maintenance deficits in schizophrenia requires that these constructs be explicated in terms of eleme...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2006.01.022
更新日期：2006-06-01 00:00:00
abstract：INTRODUCTION:Contextual factors representing chronic stressors, such as neighborhood crime characteristics, have been repeatedly linked to compromised mental and physical health, and may contribute to the pathologizing of normative/non-clinical experiences. However, the impact of such structural factors has seldom been...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2019.11.024
更新日期：2020-01-01 00:00:00
abstract：:53 inpatients with a DSM-III diagnosis of schizophrenia were assessed in the week prior to discharge from hospital on measures of social skills performance and on severity of positive and negative symptoms. A cluster analysis based on the total positive and negative symptom scores resulted in three groups. The group w...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(89)90007-8
更新日期：1989-05-01 00:00:00
abstract：BACKGROUND:A potential link between increase in total cholesterol and triglycerides and clinical improvement has been observed during antipsychotic drug treatment in chronic schizophrenia patients, possibly due to drug related effects on lipid biosynthesis. We examined whether changes in serum lipids are associated wit...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2017.10.042
更新日期：2018-07-01 00:00:00
abstract：:The relationship between social cognition (i.e., cognition for social stimuli) and ward behavior among individuals with chronic schizophrenia was investigated. Twenty-seven inpatients completed a battery of cognitive and social-cognitive tasks and were rated by staff on various indices of ward behavior. Overall, there...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/0920-9964(96)00010-2
更新日期：1996-07-05 00:00:00
abstract：BACKGROUND:Cannabis and cocaine are the most common illicit drugs for which people are treated in addiction services in Latin America. Much research has suggested that the use of cannabis increases the risk of schizophrenia; there is less evidence concerning cocaine. The aim of the present study was to establish the re...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2017.04.010
更新日期：2018-04-01 00:00:00
abstract：:Although factor scores are commonly used to interpret the Weschsler Adult Intelligence Scale--Revised (WAIS-R), the WAIS-R factor structure has not been investigated in patients with schizophrenia. We used confirmatory factor analysis (CFA) to examine five latent construct models in 169 males with schizophrenia. The W...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(98)00090-5
更新日期：1998-11-09 00:00:00
abstract：:Phencyclidine (PCP), ketamine and other N-methyl-D-aspartate (NMDA) antagonists induce schizophrenia-like symptoms in normal volunteers, suggesting that endogenous dysfunction or dysregulation of NMDA receptors may contribute to the pathophysiology of schizophrenia. Glycine and D-cycloserine are potential treatments f...
journal_title：Schizophrenia research
pub_type： 临床试验,杂志文章
doi：10.1016/S0920-9964(03)00129-4
更新日期：2004-02-01 00:00:00
abstract：:Noises elicit startle blinks that are inhibited when immediately (approximately 100 ms) preceded by non-startling prepulses, perhaps reflecting automatic sensory gating. Startle blinks are facilitated when preceded by prepulses at longer lead intervals, perhaps reflecting strategic processes. Event-related brain poten...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/s0920-9964(98)00148-0
更新日期：1999-05-25 00:00:00
abstract：:The purpose of the present study was to investigate the patterns of interregional correlations of serotonin transporter (SERT) availability with glucose metabolism using 7-Tesla magnetic resonance imaging (MRI) and high-resolution positron emission tomography (PET) with 11C-3-amino-4-(2-dimethylaminomethylphenylthio)b...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2016.10.020
更新日期：2017-04-01 00:00:00
abstract：:Studies of the risk of schizophrenia and related non-affective psychoses among individuals exposed to head injury have reported conflicting findings. The diagnostic specificity of reported associations remains unclear and the effects of sex, genetic vulnerability and timing of exposures are also uncertain. The authors...
journal_title：Schizophrenia research
pub_type： 杂志文章
doi：10.1016/j.schres.2006.07.001
更新日期：2006-12-01 00:00:00
