Assessment of enduring deficit and negative symptom subtypes in schizophrenia.

abstract：:An important development in cognitive remediation of schizophrenia is a focus on motivation. However, following a distinction between the concepts of intrinsic motivation (IM) and extrinsic motivation, discussions of IM-based methods have downplayed or misrepresented the role that extrinsic rewards can, and actually d...

journal_title：Schizophrenia bulletin

authors： Silverstein SM

更新日期：2010-09-01 00:00:00

abstract：INTRODUCTION:Hippocampal abnormalities have been widely studied in schizophrenia spectrum populations including those at ultrahigh risk (UHR) for psychosis. There have been inconsistent findings concerning hippocampal morphology prior to and during the transition to psychosis, and little is known about how specific sub...

journal_title：Schizophrenia bulletin

authors： Dean DJ,Orr JM,Bernard JA,Gupta T,Pelletier-Baldelli A,Carol EE,Mittal VA

更新日期：2016-01-01 00:00:00

abstract：:Psychophysiological anomalies in symptomatic schizophrenic patients, remitted schizophrenic patients, and individuals at heightened risk for a schizophrenic disorder are reviewed with an emphasis on electrodermal anomalies. Two electrodermal anomalies are identified in different subgroups of symptomatic patients: (1) ...

journal_title：Schizophrenia bulletin

authors： Dawson ME,Nuechterlein KH

更新日期：1984-01-01 00:00:00

abstract：:The New York High-Risk Project began in 1971 as a prospective, longitudinal study of (1) children of one or two schizophrenic parents and (2) comparison groups of children whose parents had other or no psychiatric disorders. The former were examined because they were known to be at high risk--some 10-25 percent for ch...

journal_title：Schizophrenia bulletin

authors： Erlenmeyer-Kimling L,Cornblatt B

更新日期：1987-01-01 00:00:00

abstract：:Neuroleptic drugs block brain dopamine receptors and are effective in treating psychoses of diverse origins. This finding has become a cornerstone of the dopamine theory of schizophrenia, but clinical studies relating schizophrenia, per se, to brain dopamine metabolism have ranged from controversial to negative. This ...

journal_title：Schizophrenia bulletin

authors： Maas JW,Bowden CL,Miller AL,Javors MA,Funderburg LG,Berman N,Weintraub ST

更新日期：1997-01-01 00:00:00

abstract：OBJECTIVE:Impaired cognition is an important dimension in psychosis and its at-risk states. Research on the value of impaired cognition for psychosis prediction in at-risk samples, however, mainly relies on study-specific sample means of neurocognitive tests, which unlike widely available general test norms are difficu...

journal_title：Schizophrenia bulletin

authors： Michel C,Ruhrmann S,Schimmelmann BG,Klosterkötter J,Schultze-Lutter F

更新日期：2014-11-01 00:00:00

abstract：:Endophenotypes represent intermediate phenotypes on the putative causal pathway from the genotype to the phenotype. They offer a potentially valuable strategy to examine the molecular etiopathology of complex behavioral phenotypes such as schizophrenia. Neurocognitive and neurophysiological impairments that suggest fu...

journal_title：Schizophrenia bulletin

authors： Prasad KM,Keshavan MS

更新日期：2008-07-01 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

authors： Thaker G

更新日期：2008-07-01 00:00:00

abstract：:The psychometric high-risk strategy represents a useful methodologic adjunct to the traditional genetic high-risk research approach in the study of the etiology and development of schizophrenia. During the past 15 years, considerable research activity has focused on psychometrically identified individuals hypothesized...

journal_title：Schizophrenia bulletin

authors： Lenzenweger MF

更新日期：1994-01-01 00:00:00

abstract：:When fixed doses of haloperidol or perphenazine were used in two separate studies, we found that psychotic males with a prior history of psychotogenic drug use had a poorer early neuroleptic response even in the early stages of their psychotic disorder than psychotic males who had not previously used significant amoun...

journal_title：Schizophrenia bulletin

authors： Bowers MB Jr,Mazure CM,Nelson JC,Jatlow PI

更新日期：1990-01-01 00:00:00

abstract：:This study tested hypothesized relationships between neuropsychological and psychophysiological variables and concurrent levels of clinical and psychosocial functioning in schizophrenia. The sample consisted of 40 subjects diagnosed with a chronic schizophrenia spectrum disorder and living in community-based settings....

journal_title：Schizophrenia bulletin

authors： Brekke JS,Raine A,Ansel M,Lencz T,Bird L

更新日期：1997-01-01 00:00:00

abstract：:There is emerging evidence in schizophrenia of membrane abnormalities, primarily reductions in the essential omega-3 and omega-6 series of polyunsaturated fatty acids (PUFA). Because previous studies have largely been in chronic patients, it is not known whether these membrane abnormalities also occur early in illness...

journal_title：Schizophrenia bulletin

authors： Reddy RD,Keshavan MS,Yao JK

更新日期：2004-01-01 00:00:00

abstract：BACKGROUND:Genome-wide association studies (GWAS) implicate single nucleotide polymorphisms (SNPs) on chromosome 6p21.3-22.1, the human leukocyte antigen (HLA) region, as common risk factors for schizophrenia (SZ). Other studies implicate viral and protozoan exposure. Our study tests chromosome 6p SNPs for effects on S...

journal_title：Schizophrenia bulletin

authors： Bamne M,Wood J,Chowdari K,Watson AM,Celik C,Mansour H,Klei L,Gur RC,Bradford LD,Calkins ME,Santos AB,Edwards N,Kwentus J,McEvoy JP,Allen TB,Savage RM,Nasrallah HA,Gur RE,Perry RT,Go RC,Devlin B,Yolken R,Nimgao

更新日期：2012-11-01 00:00:00

abstract：:The left superior temporal sulcus (STS) plays an important role in integrating audiovisual information and is functionally connected to disparate regions of the brain. For the integration of gesture information in an abstract sentence context (metaphoric gestures), intact connectivity between the left STS and the infe...

journal_title：Schizophrenia bulletin

authors： Straube B,Green A,Sass K,Kircher T

更新日期：2014-07-01 00:00:00

abstract：:The Seventh International Congress on Schizophrenia Research was held in Santa Fe, New Mexico, in April 1999. This was the largest Congress meeting to date, with almost 1,000 presentations that covered all aspects of schizophrenia research. This article provides an account of the Congress proceedings. Several research...

journal_title：Schizophrenia bulletin

authors： Buckley PF,Buchanan RW,Tamminga CA,Schulz SC

更新日期：2000-01-01 00:00:00

abstract：:The schizophrenia research community has shared a belief that the incidence of schizophrenia shows little variation. This belief is related to the dogma that schizophrenia affects all individuals equally, regardless of sex, race, or nationality. However, there is now robust evidence that the incidence of schizophrenia...

journal_title：Schizophrenia bulletin

authors： McGrath JJ

更新日期：2006-01-01 00:00:00

abstract：:Cognitive disruption in schizophrenia is associated with altered patterns of spatiotemporal interaction associated with multiple electroencephalogram (EEG) frequency bands in cortex. In particular, changes in the generation of gamma (30-80 Hz) and beta2 (20-29 Hz) rhythms correlate with observed deficits in communicat...

journal_title：Schizophrenia bulletin

authors： Roopun AK,Cunningham MO,Racca C,Alter K,Traub RD,Whittington MA

更新日期：2008-09-01 00:00:00

abstract：:The poverty and lack of social role in the lives of many people with schizophrenia seem similar to those of people in long-term unemployment, raising the possibility that there may be some commonalities in their time use and community functioning. To test this possibility, the social anxiety, time use, and activity pa...

journal_title：Schizophrenia bulletin

authors： Hayes RL,Halford WK

更新日期：1996-01-01 00:00:00

abstract：:This meta-analytic review sought to answer questions concerning the role of psychosocial treatments in the comprehensive management of patients with schizophrenia. The review focused on the effects of combining psychosocial treatment with somatic treatment. Findings demonstrated the additive and supplementary effects ...

journal_title：Schizophrenia bulletin

authors： Mojtabai R,Nicholson RA,Carpenter BN

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND:The homicide of strangers by people with psychosis, referred to here as "stranger homicides," are rare and tragic events that generate adverse publicity for mental health services and have resulted in significant changes in mental health policy and law. AIM:To estimate the incidence of stranger homicides, u...

journal_title：Schizophrenia bulletin

authors： Nielssen O,Bourget D,Laajasalo T,Liem M,Labelle A,Häkkänen-Nyholm H,Koenraadt F,Large MM

更新日期：2011-05-01 00:00:00

abstract：:Although schizophrenia affects a number of brain regions and produces a range of clinical symptoms, we believe its origins lie at the level of single neurons and simple networks. Owing to this, as well as to its high degree of heritability, we hypothesize that schizophrenia is amenable to cell-based studies in vitro. ...

journal_title：Schizophrenia bulletin

authors： Tran NN,Ladran IG,Brennand KJ

更新日期：2013-01-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to develop standardized scores and scoring tables for test performance in healthy adolescents for the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) Consensus Cognitive Battery (MCCB) for each year from 11 to 19 years of age, by sex, with T scores ...

journal_title：Schizophrenia bulletin

authors： Smelror RE,Jørgensen KN,Lonning V,Kelleher I,Cannon M,DeRosse P,Malhotra AK,Karlsgodt KH,Andreassen OA,Lundberg M,Edbom T,Cleland N,Ueland T,Myhre AM,Rund BR,Agartz I

更新日期：2019-06-18 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

authors： Dickerson F,Stallings C,Origoni A,Schroeder J,Khushalani S,Yolken R

更新日期：2014-07-01 00:00:00

abstract：BACKGROUND:Given the evidence that reasoning biases contribute to delusional persistence and change, several research groups have made systematic efforts to modify them. The current experiment tested the hypothesis that targeting reasoning biases would result in change in delusions. METHODS:One hundred and one partici...

journal_title：Schizophrenia bulletin

authors： Garety P,Waller H,Emsley R,Jolley S,Kuipers E,Bebbington P,Dunn G,Fowler D,Hardy A,Freeman D

更新日期：2015-03-01 00:00:00

abstract：:Schizophrenia is a disabling clinical syndrome found across the world. While the incidence and clinical expression of this illness are strongly influenced by ethnic factors, it is unclear whether patients from different ethnicities show distinct brain deficits. In this multicentre study, we used structural Magnetic Re...

journal_title：Schizophrenia bulletin

authors： Gong Q,Dazzan P,Scarpazza C,Kasai K,Hu X,Marques TR,Iwashiro N,Huang X,Murray RM,Koike S,David AS,Yamasue H,Lui S,Mechelli A

更新日期：2015-11-01 00:00:00

abstract：:The circadian rest-activity cycle of schizophrenia patients stabilized for more than a year on monotherapy with a "classical" neuroleptic (haloperidol, flupentixol) or with the atypical neuroleptic clozapine was documented by continuous activity monitoring for 3-7 weeks. In this pilot study, the three patients treated...

journal_title：Schizophrenia bulletin

authors： Wirz-Justice A,Haug HJ,Cajochen C

更新日期：2001-01-01 00:00:00

abstract：:The author reviews a number of studies which have shown that the overall mortality among patients with schizophrenia is about twice that in the general population. The highest excess mortality is found in suicide and violent death, but there seems to be an increased mortality also in cardiovascular disorders. Whether ...

journal_title：Schizophrenia bulletin

authors： Allebeck P

更新日期：1989-01-01 00:00:00

abstract：UNLABELLED:We aimed to discover whether metabolic complications of schizophrenia (SZ) are present in first episode (FE) and unmedicated (UM) patients, in comparison with patients established on antipsychotic medication (AP). METHOD:A systematic search, critical appraisal, and meta-analysis were conducted of studies to...

journal_title：Schizophrenia bulletin

authors： Mitchell AJ,Vancampfort D,De Herdt A,Yu W,De Hert M

更新日期：2013-03-01 00:00:00

abstract：:Abnormal reinforcement learning and representations of reward value are present in schizophrenia, and these impairments can manifest as deficits in risk/reward decision making. These abnormalities may be due in part to dopaminergic dysfunction within cortico-limbic-striatal circuitry. Evidence from studies with labora...

journal_title：Schizophrenia bulletin

authors： Stopper CM,Floresco SB

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

authors： Williams HJ,Owen MJ,O'Donovan MC

更新日期：2007-05-01 00:00:00