Abstract:
:This article combines a review and meta-analysis of research on IQ in schizophrenia, with emphasis on areas of convergence in the findings, as well as questions that remain to be answered. Taken together, the findings suggest that early-onset and adult-onset schizophrenia are associated with intellectual deficits across the lifespan. Preschizophrenic children, adolescents, and young adults perform below matched controls on a variety of standardized measures of intelligence. Significant IQ deficits are also apparent after the onset of the disorder. Moreover, IQ is positively related to several indices of prognosis, and, among hospitalized patients, there is negative within-subject covariance between intellectual performance and symptom severity. Although there is fairly consistent evidence that Verbal IQ is higher than Performance IQ among schizophrenic patients, a more specific pattern of subtest performance is not apparent. A central question raised by the results is whether IQ is an independently determined factor that can serve to mitigate the vulnerability of individuals who are constitutionally predisposed to schizophrenia, or whether intellectual deficit is one manifestation of the constitutional predisposition to the disorder. The findings also raise the question of possible sex differences in the developmental determinants of schizophrenia: Meta-analyses revealed that premorbid IQ deficits are more prevalent among males than females.
journal_name
Schizophr Bulljournal_title
Schizophrenia bulletinauthors
Aylward E,Walker E,Bettes Bdoi
10.1093/schbul/10.3.430subject
Has Abstractpub_date
1984-01-01 00:00:00pages
430-59issue
3eissn
0586-7614issn
1745-1701journal_volume
10pub_type
杂志文章,评审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 functi...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,随机对照试验
doi:10.1093/schbul/sbr152
更新日期:2013-03-01 00:00:00
abstract::Hallucinations in children and adolescents are now known to occur on a continuum from healthy to psychopathology-related phenomena. Although hallucinations in young populations are mostly transient, they can cause substantial distress. Despite hallucinations being widely investigated, research so far has had limited i...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sby119
更新日期:2019-02-01 00:00:00
abstract::In addition to introducing the six articles joined by our thematic outlook, this article addresses the importance of subcortical structures as they may be related to information processing and the life experience of schizophrenic patients. This is a heuristic exercise aimed at bridging the conceptual gaps between clin...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/13.4.555
更新日期:1987-01-01 00:00:00
abstract:INTRODUCTION:ABT-288 is a highly potent histamine-3 receptor antagonist that has demonstrated pro-cognitive effects in preclinical models relevant to schizophrenia. This study evaluated the efficacy and safety of two doses of ABT-288 in the treatment of cognitive impairment associated with schizophrenia. METHODS:A ran...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1093/schbul/sbt240
更新日期:2014-11-01 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
pub_type: 杂志文章
doi:10.1093/schbul/sbv086
更新日期:2016-01-01 00:00:00
abstract::A substantial amount of research has focused on the midbrain dopamine system and its role in emotional and motivational behaviors. In diseases in which dopamine function is compromised, patients exhibit a constellation of symptoms, suggesting that the dopamine system plays an important role in the integration of sever...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/23.3.471
更新日期:1997-01-01 00:00:00
abstract::The dopamine hypothesis of schizophrenia implies that alterations in the dopamine system cause functional abnormalities in the brain that may converge to aberrant salience attribution and eventually lead to psychosis. Indeed, widespread brain disconnectivity across the psychotic spectrum has been revealed by resting-s...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,随机对照试验
doi:10.1093/schbul/sby079
更新日期:2019-04-25 00:00:00
abstract::Negative and positive symptoms were investigated in a sample of 72 young schizophrenic and depressed patients at followup approximately 1 1/2 years after hospital discharge. Flat affect, poverty of speech, and psychomotor retardation were included as negative symptoms, and delusions, hallucinations, and florid thought...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/10.3.371
更新日期:1984-01-01 00:00:00
abstract::This study examined the course of illness and factors affecting it in schizophrenias with onset between the ages of 14 and 18. Noteworthy in comparison to findings from other followup studies is the higher proportion of chronic courses of illness, about 50 percent. In addition, the type of course of illness correspond...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/19.4.831
更新日期:1993-01-01 00:00:00
abstract::Schizophrenia has been associated with heightened stress responsivity in adolescence that precedes onset of psychosis. We now report that multiple stressors during adolescence in normal rats leads to deficits in adults analogous to that seen in schizophrenia patients. Moreover, impairment of stress control by lesion o...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbx033
更新日期:2017-05-01 00:00:00
abstract:Background:Delta band (1-4 Hz) neuronal responses support the precision and stability of auditory processing, and a deficit in delta band synchrony may be relevant to auditory domain symptoms in schizophrenia patients. Methods:Delta band synchronization elicited by a 2.5 Hz auditory steady state response (ASSR) paradi...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbx078
更新日期:2018-02-15 00:00:00
abstract:BACKGROUND:Previous studies of nonclinical samples exhibiting schizotypal traits have provided support for the existence of a continuous distribution of psychotic symptoms in the general population. Few studies, however, have examined the neural correlates of psychometric schizotypy using structural and diffusion tenso...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbu150
更新日期:2015-01-01 00:00:00
abstract::Pharmacologic agents currently used or being studied for the treatment of schizophrenia are reviewed. Neuroleptic medications are still the mainstay of treatment, but recent studies suggest new approaches to dosage and to the treatment of acute psychosis. Lithium is beneficial in psychotic illnesses with acute onset a...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/9.4.504
更新日期:1983-01-01 00:00:00
abstract::In response to my discussion of sex differences in concordance rates for schizophrenia in twins, Lewine (1979) noted that male schizophrenics are hospitalized earlier than females. He questioned whether females had been followed through the risk period. To clarify, I calculated the age at followup of discordant twins ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/5.1.8
更新日期:1979-01-01 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
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a007140
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Acute treatment with subanaesthetic doses of NMDA receptor antagonists, such as ketamine, provides a translational model with relevance to many of the symptoms of schizophrenia. Previous studies have focused specifically on the prefrontal cortex (PFC) because this region is implicated in many of the function...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbr144
更新日期:2013-03-01 00:00:00
abstract::Given the variety of "organic" or "toxic" conditions that may produce, precipitate, or exacerbate psychotic disorders, it is important to attempt to clarify existing nosologies and to highlight the need for research strategies that may help to validate relevant distinctions. This review provides a brief discussion of ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/17.1.69
更新日期:1991-01-01 00:00:00
abstract::This study examined the relation between maternal prepregnant body mass index (BMI) and development of schizophrenia and schizophrenia spectrum disorders in adult offspring from the Prenatal Determinants of Schizophrenia Study. The study drew on a previously studied cohort of births occurring between 1959 and 1967 to ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a033452
更新日期:2000-01-01 00:00:00
abstract::The relationship between a history of substance use disorder and the early course of psychotic illness was examined in 96 subjects with schizophrenia and 106 subjects with affective psychosis followed in the Suffolk County Mental Health Project, a longitudinal study of first-admission psychosis. Subjects received a st...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/23.2.195
更新日期:1997-01-01 00:00:00
abstract::Cognitive remediation improves cognition in patients with schizophrenia, but its effect on other relevant factors such as negative symptoms and functional outcome has not been extensively studied. In this hospital-based study, 84 inpatients with chronic schizophrenia were recruited from Alava Hospital (Spain). All of ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,随机对照试验
doi:10.1093/schbul/sbt057
更新日期:2014-05-01 00:00:00
abstract::Although weight gain is a serious but variable adverse effect of antipsychotics that has genetic underpinnings, a comprehensive meta-analysis of pharmacogenetics of antipsychotic-related weight gain is missing. In this review, random effects meta-analyses were conducted for dominant and recessive models on association...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,meta分析,评审
doi:10.1093/schbul/sbw058
更新日期:2016-11-01 00:00:00
abstract::Family studies of schizophrenia frequently include relatives of schizophrenia probands with diagnoses falling within the schizophrenia spectrum. As part of an ongoing genetic linkage study of schizophrenia, the authors examined case material from 50 relatives (of schizophrenia probands) who received a DSM-III-R diagno...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/20.4.747
更新日期:1994-01-01 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
pub_type: 杂志文章
doi:10.1093/schbul/22.4.659
更新日期:1996-01-01 00:00:00
abstract::The success of the biological revolution in our understanding of schizophrenia, along with the lack of convincing evidence for the efficacy of global approaches to individual psychotherapy with schizophrenia, has led to the virtual disappearance of research and theory in this area. However, it seems timely to reexamin...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/15.3.349
更新日期:1989-01-01 00:00:00
abstract::We report an analysis of a large catchment area sample of patients with nonaffective functional psychoses presenting across all ages at onset. The male:female ratio was 1.56:1 in the 16-25-year age group; it reached unity around 30 years of age and declined to 0.38:1 in the 66-75-year group. Contrary to expectation, a...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/19.4.691
更新日期:1993-01-01 00:00:00
abstract::We conducted a survey of 151 outpatients with schizophrenia or schizoaffective disorder in Geneva, Switzerland, in 2000, and a mail survey in a representative sample of the general population of Geneva in 1996 (n = 742), to compare alcohol consumption and alcoholism in these two samples. Fewer patients with schizophre...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a007144
更新日期:2004-01-01 00:00:00
abstract::In light of the large number of studies published since the 2004 update of Schizophrenia Patient Outcomes Research Team psychopharmacological treatment recommendations, we conducted an extensive literature review to determine whether the current psychopharmacological treatment recommendations required revision and whe...
journal_title:Schizophrenia bulletin
pub_type: 共识发展会议,杂志文章,实务指引,评审
doi:10.1093/schbul/sbp116
更新日期:2010-01-01 00:00:00
abstract::This article focuses on the schizophrenic disorganization syndrome, which was initially described by Bleuler (who used the term "dissociation") as lying at the heart of schizophrenia. While adopting a neo-Bleulerian approach, we describe schizophrenic disorganization using a pathogenetic hypothesis and a three-part st...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a007019
更新日期:2003-01-01 00:00:00
abstract::Thalamus abnormalities are common in neurological and psychiatric illnesses. Therefore, it is essential to understand the properties of the thalamus-related networks. The thalamic reticular nucleus (TRN) is a thin GABAergic layer interface strategically located between the thalamus and the neocortex. It is, at the ver...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbq165
更新日期:2011-03-01 00:00:00
abstract::Studies indicate a high prevalence of childhood trauma in patient cohorts with established psychotic disorder and in those at risk of developing psychosis. A causal link between childhood trauma and development of psychosis has been proposed. We aimed to examine the association between experience of childhood trauma a...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbt032
更新日期:2014-05-01 00:00:00