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 tensor imaging (DTI). METHODS:Healthy volunteers between the ages of 18 and 68 were recruited from the community and assessed using the Schizotypal Personality Questionnaire and received structural and DTI exams. Participants with high (N = 67) and low (N = 71) psychometric schizotypy were compared on gray and white matter volume, and cortical thickness in frontal and temporal lobe regions and on fractional anisotropy (FA) within 5 association tracts traversing the frontal and temporal lobes. RESULTS:Higher levels of schizotypy were associated with lower overall volumes of gray matter in both the frontal and temporal lobes and lower gray matter thickness in the temporal lobe. Regionally specific effects were evident in both white matter and gray matter volume of the rostral middle frontal cortex and gray matter volume in the pars orbitalis. Moreover, relative to individuals who scored low, those who scored high in schizotypy had lower FA in the inferior fronto-occipital fasciculus as well as greater asymmetry (right > left) in the uncinate fasciculus. CONCLUSIONS:These findings are broadly consistent with recent data on the neurobiological correlates of psychometric schizotypy as well as findings in schizotypal personality disorder and schizophrenia and suggest that frontotemporal lobe dysfunction may represent a core component of the psychosis phenotype.
journal_name
Schizophr Bulljournal_title
Schizophrenia bulletinauthors
DeRosse P,Nitzburg GC,Ikuta T,Peters BD,Malhotra AK,Szeszko PRdoi
10.1093/schbul/sbu150subject
Has Abstractpub_date
2015-01-01 00:00:00pages
104-14issue
1eissn
0586-7614issn
1745-1701pii
sbu150journal_volume
41pub_type
杂志文章abstract::Considerable research has documented the stigmatization of people with mental illnesses and its negative consequences. Recently it has been shown that stigma may also seriously affect families of psychiatric patients, but little empirical research has addressed this problem. We examine perceptions of and reactions to ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a033304
更新日期:1998-01-01 00:00:00
abstract::Empirically supported treatments for schizophrenia now include a variety of psychosocial interventions, such as social skills training, vocational rehabilitation, and psychotherapy. As awareness of the functional importance of neurocognitive impairments in schizophrenia has increased, interest in treatments to improve...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
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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
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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::Little is known about the neurobiological factors that determine functional outcome in people at high risk for psychosis. We use multimodal neuroimaging to investigate whether cortical responses during a cognitive task and thalamic glutamate levels were associated with subsequent functional outcome. Sixty subjects par...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbu115
更新日期:2015-03-01 00:00:00
abstract::Despite NIMH efforts to facilitate the study of women and minorities in federally funded schizophrenia research, there is a significant lack of information about race differences in brain morphology and neuropsychological function in schizophrenia. A review of three major psychiatric journals between 1994 and 1996 rev...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a033358
更新日期:1999-01-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbv173
更新日期:2016-07-01 00:00:00
abstract::Given the rising costs of health care and the decrease in public expenditures on mental health care, policy-makers and program managers must identify cost-effective approaches for treating severely mentally ill patients. During the last year, there have been two major cost-effectiveness studies implemented in Californ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/17.3.461
更新日期:1991-01-01 00:00:00
abstract::Antistigma campaigns have been promoting a medical view of schizophrenia. Given the growing body of research finding negative associations between biogenetic (BG) causal attributions and stigmatizing attitudes, this approach must be reappraised. The present study investigates the impact of different psychoeducational ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbm131
更新日期:2008-09-01 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::The deficit syndrome is thought to characterize a pathophysiologically distinct subgroup of patients with schizophrenia. Supporting this notion, prior research examining the neuropsychological correlates of the deficit syndrome has suggested the presence of a differential impairment in frontal and parietal functions. ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,meta分析,评审
doi:10.1093/schbul/sbl066
更新日期:2007-09-01 00:00:00
abstract::Depression frequently occurs in first-episode psychosis (FEP) and predicts longer-term negative outcomes. It is possible that this depression is seen primarily in a distinct subgroup, which if identified could allow targeted treatments. We hypothesize that patients with recent-onset psychosis (ROP) and comorbid depres...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbaa094
更新日期:2021-01-23 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
pub_type: 杂志文章
doi:10.1093/schbul/10.2.204
更新日期:1984-01-01 00:00:00
abstract::As part of a long-term study in schizophrenia, a model of family intervention has been developed which attempts to diminish relapse rates of schizophrenic patients. This model reflects theoretical and research findings which suggest that certain patients have a "core psychological deficit" that might increase vulnerab...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/6.3.490
更新日期:1980-01-01 00:00:00
abstract::Most research literature concerning pharmacological treatments reports results from controlled clinical trials, which provide data critical to assess the efficacy of new treatments in research populations. Fewer studies examine how treatments are adopted in everyday practice settings, where comorbid disorders and envi...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a006924
更新日期:2002-01-01 00:00:00
abstract::The rate of substance-use disorders in patients with mental illnesses within the psychotic spectrum, such as schizophrenia, schizoaffective disorder, and bipolar disorder, is higher than the rate observed in the general population and is associated with significant morbidity and mortality. Although there are currently...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,随机对照试验
doi:10.1093/schbul/sbl010
更新日期:2006-10-01 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::Discussion of the positive vs. negative distinction often fails to address whether this distinction refers to symptoms, syndromes, or diseases. Symptoms and syndromes are etiologically nonspecific, while diseases have a specific identifiable pathophysiology or etiology. The positive vs. negative distinction is sometim...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/11.3.380
更新日期:1985-01-01 00:00:00
abstract::The role of gender in schizophrenia is explored, and literature on gender and schizophrenia is critically reviewed. The importance of investigating gender differences in schizophrenia is underscored by the lack of sufficient research in this area to date and the comparative neglect of sociocultural issues during the "...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.schbul.a006944
更新日期:2002-01-01 00:00:00
abstract::This article focuses on the cross-modal reaction time paradigm, which has been used to study deviation patterns of shifting attention across stimulus modalities in schizophrenic patients. Cross-modal reaction time research involving pathological and nonpathological populations is reviewed. The influence of sex, stimul...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/6.4.654
更新日期:1980-01-01 00:00:00
abstract:OBJECTIVE:Cannabis use is associated with a younger age at onset of psychosis, an indicator of poor prognosis, but better cognitive function, a positive prognostic indicator. We aimed to clarify the role of age at onset and cognition on outcomes in cannabis users with first-episode schizophrenia as well as the effect o...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbq153
更新日期:2012-06-01 00:00:00
abstract::North American outcome studies of schizophrenia conducted within the past quarter century are reviewed if their minimum average followup is 10 years and they meet at least some modern design criteria. Ten such investigations are described and summarized. Taken as a whole, they demonstrate that schizophrenia can be a c...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/14.4.515
更新日期:1988-01-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbm116
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND:Insight into the neural mechanisms underlying the shared and disparate features of schizophrenia (SZ) and bipolar disorder (BD) is limited. The amygdala and prefrontal cortex (PFC) appear to have crucial roles in SZ and BD, yet abnormalities appear to manifest differently in the 2 disorders. METHODS:Eightee...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbt044
更新日期:2014-03-01 00:00:00
abstract::Gender effects have been reported quite consistently in schizophrenia, with male patients having an earlier age of onset, poorer functional outcome, greater negative symptoms and cognitive impairment, and less severe positive symptoms. Because age of onset, cognitive impairments, and negative symptoms are all correlat...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a006850
更新日期:2001-01-01 00:00:00
abstract::One neuropathological feature of schizophrenia is a diminished number of dendritic spines in the prefrontal cortex and hippocampus. The neuregulin 1 (Nrg1) system is involved in the plasticity of dendritic spines, and chronic stress decreases dendritic spine densities in the prefrontal cortex and hippocampus. Here, we...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sby029
更新日期:2019-03-07 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbw159
更新日期:2017-09-01 00:00:00
abstract:BACKGROUND:Emotion dysregulation is crucial to both poor social functioning and psychotic symptom formation in patients with schizophrenia. The efficient use of emotion regulation strategies, such as cognitive reappraisal, has been less frequently observed in the early phases of psychotic disorder. It is unknown whethe...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbaa080
更新日期:2021-01-23 00:00:00
abstract::Descriptions of various psychotic symptoms in children began to appear in the psychiatric literature at about the same time as descriptions of psychotic symptoms in adults. For example, Kraepelin estimated that at least 3.5 percent of his cases of dementia praecox had onsets before age 10. The construct of "childhood ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/20.4.591
更新日期:1994-01-01 00:00:00
abstract::The issue of specificity of delusions in schizophrenia is still a matter of debate. The authors analyze the delusion formation in schizophrenia from a prototypical, phenomenological point of view, focusing on the subject's experience. This perspective links delusion formation to the autistic predisposition, which is c...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/19.3.579
更新日期:1993-01-01 00:00:00