Abstract:
BACKGROUND:Cannabis use has been identified as a potent predictor of the earlier onset of psychosis, but meta-analysis has not indicated that it has a clear effect in established psychosis. AIM:To assess the association between cannabis and outcomes, including whether change in cannabis use affects symptoms and functioning, in a large sample of people with established nonaffective psychosis and comorbid substance misuse. METHODS:One hundred and sixty participants whose substance use included cannabis were compared with other substance users (n = 167) on baseline demographic, clinical, and substance use variables. The cannabis using subgroup was examined prospectively with repeated measures of substance use and psychopathology at baseline, 12 months, and 24 months. We used generalized estimating equation models to estimate the effects of cannabis dose on subsequent clinical outcomes and whether change in cannabis use was associated with change in outcomes. RESULTS:Cannabis users showed cross-sectional differences from other substances users but not in terms of positive symptoms. Second, cannabis dose was not associated with subsequent severity of positive symptoms and change in cannabis dose did not predict change in positive symptom severity, even when patients became abstinent. However, greater cannabis exposure was associated with worse functioning, albeit with a small effect size. CONCLUSIONS:We did not find evidence of an association between cannabis dose and psychotic symptoms, although greater cannabis dose was associated with worse psychosocial functioning, albeit with small effect size. It would seem that within this population, not everyone will demonstrate durable symptomatic improvements from reducing cannabis.
journal_name
Schizophr Bulljournal_title
Schizophrenia bulletinauthors
Barrowclough C,Emsley R,Eisner E,Beardmore R,Wykes Tdoi
10.1093/schbul/sbr152subject
Has Abstractpub_date
2013-03-01 00:00:00pages
339-48issue
2eissn
0586-7614issn
1745-1701pii
sbr152journal_volume
39pub_type
杂志文章,随机对照试验abstract::The purpose of the study was to examine (1) to which negative symptoms schizophrenia patients attribute distress and (2) whether clinical variables can predict the levels of reported distress. With the help of a research assistant, 86 hospitalized patients completed a self-rating scale for negative symptoms. The 21 it...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a033490
更新日期:2000-01-01 00:00:00
abstract::Cognitive Enhancement Therapy (CET) is a developmental approach to the rehabilitation of schizophrenia patients that attempts to facilitate an abstracting and "gistful" social cognition as a compensatory alternative to the more demanding and controlled cognitive strategies that often characterize schizophrenia as well...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a033411
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Task-based functional neuroimaging studies of schizophrenia have not yet replicated the increased coordinated hyperactivity in speech-related brain regions that is reported with symptom-capture and resting-state studies of hallucinations. This may be due to suboptimal selection of cognitive tasks. METHODS:I...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbu004
更新日期:2015-01-01 00:00:00
abstract::Catechol-O-methyl transferase (COMT) is a catabolic enzyme involved in the degradation of a number of bioactive molecules; of principal interest to psychiatry, these include dopamine. The enzyme is encoded by the COMT gene. COMT is located (along with 47 other genes) in a fragment of chromosome 22q11 which when delete...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbm019
更新日期:2007-05-01 00:00:00
abstract::The European Psychiatric Services: Inputs Linked to Outcomes and Needs (EPSILON) study was a EU BIOMED-2-funded comparative, cross-national, cross-sectional study aimed (1) to produce standardized versions of five key research instruments in five languages, and (2) to compare the characteristics, needs, and life quali...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,多中心研究
doi:10.1093/oxfordjournals.schbul.a007029
更新日期:2003-01-01 00:00:00
abstract::Standardized recovery criteria go beyond symptom remission and put special emphasis on personal and social functioning in residence, work, and leisure. Against this background, evidence-based integrated approaches combining cognitive remediation with social skills therapy show promise for improving functional recovery...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,meta分析,评审
doi:10.1093/schbul/sbr072
更新日期:2011-09-01 00:00:00
abstract::In contrast with issues of consent capacity, financial capacity has received surprisingly little clinical or ethical attention in the psychiatric literature. Issues of financial capacity emerge frequently regarding clients with serious mental illness (SMI), and their resolution has practical and ethical significance f...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbj027
更新日期:2006-01-01 00:00:00
abstract::Disruption of sleep/wake cycles is common in patients with schizophrenia and correlates with cognitive and affective abnormalities. Mice deficient in stable tubule only polypeptide (STOP) show cognitive, behavioral, and neurobiological deficits that resemble those seen in patients with schizophrenia, but little is kno...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbw017
更新日期:2016-09-01 00:00:00
abstract::The "Praecox Feeling" (PF) is a classical concept referring to a characteristic feeling of bizarreness experienced by a psychiatrist while encountering a person with schizophrenia. Although the PF used to be considered a core symptom of the schizophrenia spectrum, it fell into disuse since the spread of operationalize...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sby172
更新日期:2019-09-11 00:00:00
abstract::Cognitive-behavioral therapy for psychosis is described. It draws on the cognitive models and therapy approach of Beck and colleagues, combined with an application of stress-vulnerability models of schizophrenia and cognitive models of psychotic symptoms. There is encouraging evidence for the efficacy of this approach...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.schbul.a033447
更新日期:2000-01-01 00:00:00
abstract::Recently published data from the Roscommon Family Study show that a parental diagnosis of schizotypal disorder (SPD) has a significant and specific impact on the risk for schizophrenia in siblings of index probands with schizophrenia spectrum disorders. The distribution patterns of risks for schizophrenia and SPD in p...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/22.2.191
更新日期:1996-01-01 00:00:00
abstract::The establishment of the new diagnostic category, Schizotypal Personality Disorder (SPD), has stimulated biological studies of patients with this disorder. Such studies offer the potential of better understanding the diagnosis and treatment of SPD as well as more clearly defining the boundaries of the schizophrenic di...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/11.4.564
更新日期:1985-01-01 00:00:00
abstract::This study quantitatively examined reasons for substance use among individuals with psychotic disorders and explored the relationship of these reasons to substance use problems and dependence. Sixty-nine people with psychotic disorders were interviewed using a battery of questionnaires called the Substance Use Scale f...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a006934
更新日期:2002-01-01 00:00:00
abstract::Although the various manifestations of disordered thought have played a central role in diagnostic and theoretical considerations of schizophrenia, such symptoms have not been found specific to schizophrenia, and at best have shown weak relations to outcome. As part of a 7-year followup study of a sample of young, acu...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/12.3.427
更新日期:1986-01-01 00:00:00
abstract::Recent studies provide considerable evidence that schizophrenia and bipolar disorder may share overlapping etiologic determinants. Identifying disease-related genetic effects is a major focus in schizophrenia and bipolar disorder research, with implications for clarifying diagnosis and developing specific treatments f...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbn055
更新日期:2008-07-01 00:00:00
abstract::While the role of childhood adversity in increasing the risk of psychosis has been extensively investigated, it is not clear what the impact of early adverse experiences is on the outcomes of psychotic disorders. Therefore, we investigated associations between childhood adversity and 1-year outcomes in 285 first-prese...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbv131
更新日期:2016-03-01 00:00:00
abstract::Social networks of 35 mentally ill persons were studied in Lao villages. Mental illness was associated with a decrease in size of social networks, disproportionate reliance on family, and asymmetric instrumental exchange. Nonkin "sponsors" provided assistance to those alienated from or abandoned by relatives. For thos...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/7.1.125
更新日期:1981-01-01 00:00:00
abstract::Lifetime prevalence of psychotic disorders varies widely across studies. Epidemiological surveys have rarely examined prevalences of specific psychotic disorders other than schizophrenia, and the majority used a single-phase design without employing clinical reappraisal interview for diagnostic verification. The curre...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbx056
更新日期:2017-10-21 00:00:00
abstract::The question of whether schizophrenia is associated with structural or functional abnormalities of the nervous system, or both, has become the principal focus of biological studies of schizophrenia. Computed tomography studies have revealed ventricular enlargement and cortical atrophy in a subgroup of schizophrenic pa...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/13.1.77
更新日期:1987-01-01 00:00:00
abstract::The prodrome of psychosis has become a target for early identification and for treatments that address both symptoms and risk for future psychosis. Interest and activity in this realm is now worldwide. Clinical trials with rigorous methodology have only just begun, making treatment guidelines premature. Despite the sp...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,多中心研究
doi:10.1093/schbul/sbm025
更新日期:2007-05-01 00:00:00
abstract::Aerobic exercise has been shown to improve symptoms in multiepisode schizophrenia, including cognitive impairments, but results are inconsistent. Therefore, we evaluated the effects of an enriched environment paradigm consisting of bicycle ergometer training and add-on computer-assisted cognitive remediation (CACR) tr...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbv020
更新日期:2015-07-01 00:00:00
abstract::Negative symptoms of schizophrenia remain an area of substantial unmet clinical need. By convening a consensus conference in January 2005, the NIMH has taken a leading role in stimulating a resurgence of interest in methodological considerations related to development of new medications for treating negative symptoms....
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbj056
更新日期:2006-04-01 00:00:00
abstract::Self-experience anomalies are elementary features of schizophrenic pathology. Such deficits can have a profound impact on self-other relationship, but how they are related through aberrant brain function remains poorly understood. In this functional magnetic resonance imaging (fMRI) study, we provide new evidence for ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbt153
更新日期:2014-09-01 00:00:00
abstract::Increasing awareness of the importance of neurocognitive impairments in schizophrenia has fostered considerable interest in the prospects for cognitive rehabilitation. Nevertheless, optimism has outpaced progress. We first review recent literature on the central assumptions that underlie cognitive rehabilitation, incl...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.schbul.a033377
更新日期:1999-01-01 00:00:00
abstract::The validity of a Hindi version of the Diagnostic Interview for Genetic Studies (DIGS) was investigated. The original English version was initially translated into Hindi. The Hindi version was then back-translated and compared with the original. Next, a group of psychiatric inpatients and outpatients were interviewed ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a033343
更新日期:1998-01-01 00:00:00
abstract:INTRODUCTION:Abnormalities in the neurophysiological measures P300 amplitude and latency constitute endophenotypes for psychosis. Disrupted-in-Schizophrenia-1 (DISC1) has been proposed as a promising susceptibility gene for schizophrenia, and a previous study has suggested that it is associated with P300 deficits in sc...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbr101
更新日期:2013-01-01 00:00:00
abstract::Persons with schizophrenia have a reduced life expectancy largely due to death from natural causes. Factors that have been previously associated with excess mortality include cigarette smoking and antipsychotic medication. The role of other environmental factors such as exposure to infectious agents has been the subje...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbt113
更新日期:2014-07-01 00:00:00
abstract::The article that follows is part of the Schizophrenia Bulletin's ongoing First Person Account series. We hope that mental health professionals--the Bulletin's primary audience--will take this opportunity to learn about the issues and difficulties confronted by consumers of mental health care. In addition, we hope that...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a007115
更新日期:2004-01-01 00:00:00
abstract::The association between low birth weight and schizophrenia has been suggested by many studies. Small for gestational age (SGA) is a measure used as a proxy for intrauterine growth restriction. We aim to examine if children who are born SGA are at increased risk of developing schizophrenia and whether an association ma...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbs148
更新日期:2013-11-01 00:00:00
abstract::There is controversy over whether childhood trauma (CT) is a causal factor in the development of psychosis. This review aims to identify and critically analyze the association between CT and psychotic disorders. Studies investigating CT and psychotic disorder were identified by searches of electronic databases and man...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbm121
更新日期:2008-05-01 00:00:00