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 subregions are related to the symptom progression. METHODS:A total of 80 participants (38 UHR and 42 healthy controls) underwent a 3T MRI scan, as well as structured clinical interviews. Shape analysis of hippocampi was conducted with FSL/FIRST vertex analysis to yield a localized measure of shape differences between groups. A subgroup of the sample (24 UHR and 24 controls) also returned for a 12-month clinical follow-up assessment. RESULTS:The UHR group exhibited smaller hippocampal volumes bilaterally, and shape analysis revealed significant inversion in the left ventral posterior hippocampus in the UHR group. Greater inversion in this subregion was related to elevated symptomatology at baseline and increased positive symptoms, negative symptoms, and impaired tolerance to normal stress 12 months later. These results did not hold when left hippocampal volume was used as a predictor instead. DISCUSSION:This represents the first study to use vertex analysis in a UHR sample and results suggest that abnormalities in hippocampal shape appear to reflect underlying pathogenic processes driving the progression of illness. These findings suggest that examining shape and volume may provide an important new perspective for our conception of brain alterations in the UHR period.
journal_name
Schizophr Bulljournal_title
Schizophrenia bulletinauthors
Dean DJ,Orr JM,Bernard JA,Gupta T,Pelletier-Baldelli A,Carol EE,Mittal VAdoi
10.1093/schbul/sbv086subject
Has Abstractpub_date
2016-01-01 00:00:00pages
161-9issue
1eissn
0586-7614issn
1745-1701pii
sbv086journal_volume
42pub_type
杂志文章abstract::Recent years have witnessed widespread interest in the early phase of schizophrenia and other psychotic disorders. Strategies have been introduced to attempt to identify individuals in the prepsychotic or prodromal phase. The most widely used of these approaches is the ultra-high risk (UHR) approach, which combines kn...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbm094
更新日期:2008-03-01 00:00:00
abstract::The study describes the Cardiff Anomalous Perceptions Scale (CAPS), a new validated measure of perceptual anomalies. The 32-item CAPS measure is a reliable, self-report scale, which uses neutral language, demonstrates high content validity, and includes subscales that measure distress, intrusiveness, and frequency of ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbj014
更新日期:2006-04-01 00:00:00
abstract::The purpose of this study was to investigate the construct validity and the test-retest reliability of the willingness to pay (WTP) method for estimating health state preferences associated with side effects of antipsychotic medication. Ninety-six schizophrenia patients on antipsychotics were asked (1) how much they w...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a006903
更新日期:2001-01-01 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: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
pub_type: 杂志文章,多中心研究
doi:10.1093/schbul/sby131
更新日期:2019-06-18 00:00:00
abstract::Remitting illness such as affective or schizoaffective disorder is appropriately described by a vulnerability model. Clinical evidence is reviewed here to clarify the relationship between the affective-disorder-like and schizophrenia-like symptoms in a schizoaffective episode. A model is proposed which treats vulnerab...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/10.1.71
更新日期:1984-01-01 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
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbn017
更新日期:2008-07-01 00:00:00
abstract::The purpose of this study was to assess how neurocognition and social cognition were associated with initial functional level and with rates of functional change in intensive community-based psychosocial rehabilitation interventions that have been shown to yield significant functional change for individuals diagnosed ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,多中心研究
doi:10.1093/schbul/sbl072
更新日期:2007-09-01 00:00:00
abstract::The traditional view of life events is that the crucial factor is the number which occur within a defined time period. This was examined as part of a 2-year, prospective, longitudinal study of prospective, longitudinal study of 518 people, each of whom was interviewed every 6 months with Holmes and Rahe's Recent LIfe ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/7.1.34
更新日期:1981-01-01 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
pub_type: 杂志文章
doi:10.1093/schbul/13.3.451
更新日期:1987-01-01 00:00:00
abstract::The causal mechanism underlying the well-established relation between advancing paternal age and schizophrenia is hypothesized to involve mutational errors during spermatogenesis that occur with increasing frequency as males age. Point mutations are well known to increase with advancing paternal age while other errors...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbm093
更新日期:2007-11-01 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::Recent advances in functional genomics have facilitated the identification of multiple genes and isoforms associated with the genetic risk of schizophrenia, yet the causal variations remain largely unclear. A previous study reported that the schizophrenia risk single-nucleotide polymorphism (SNP) rs7085104 at 10q24.32...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbaa098
更新日期:2021-01-23 00:00:00
abstract::The dopamine hypothesis of schizophrenia is usually presented in a static, rather than dynamic fashion. We propose that increased dopaminergic activity may represent a stage of a dynamic schizophrenic process rather than its cause. Dopamine, as well as other neurotransmitters, responds in an adaptive fashion to stimul...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/9.3.325
更新日期:1983-01-01 00:00:00
abstract:OBJECTIVE:Schizophrenia is associated with excess physical comorbidity. Yet, to our knowledge, large studies are lacking on the associations with somatic diseases before the onset of schizophrenia. The authors conducted a nationwide study of the full spectrum of treated somatic diseases before the first diagnosis of sc...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbu110
更新日期:2015-03-01 00:00:00
abstract::Clozapine has been found to be superior to traditional neuroleptics in the treatment of refractory schizophrenia and is increasingly being used to treat schizophrenia, affective disorders, some neurological disorders, and aggression. For many patients, clozapine offers new hope for the successful pharmacological manag...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.schbul.a033333
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:Stressful life events have been implicated in the onset of psychotic disorders, but there are few robust studies. We sought to examine the nature and magnitude of associations between adult life events and difficulties and first-episode psychoses, particularly focusing on contextual characteristics, including...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbaa005
更新日期:2020-07-08 00:00:00
abstract::Although there is recent evidence that cells from the peripheral immune system can gain access to the central nervous system in certain conditions such as multiple sclerosis, their role has not been assessed in psychosis. Here, we aimed to explore whether blood cell count was associated with brain volume and/or clinic...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sby113
更新日期:2019-06-18 00:00:00
abstract::Randomized controlled trials for antipsychotic drugs have a variety of design features suited to diverse purposes. Efficacy (or explanatory) trials seek to establish if a drug can reduce psychotic symptoms under ideal circumstances. To isolate drug effects, researchers enroll carefully selected patients. Specialized r...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbm156
更新日期:2008-03-01 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::The normal developmental series of brains in the Yakovlev Collection has been examined to explore the possibility that various brain regions implicated in schizophrenia may show changes in myelination during late adolescence, a period coinciding with the appearance of early symptoms of this disorder. The prefrontal, c...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/15.4.585
更新日期:1989-01-01 00:00:00
abstract::Antipsychotics, cognitive behavioral therapy (CBT), and omega-3-fatty acids have been found superior to control conditions as regards prevention of psychosis in people at-risk of first-episode psychosis. However, no large-scale trial evaluating the differential efficacy of CBT and antipsychotics has been performed yet...
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/sbr083
更新日期:2011-09-01 00:00:00
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:BACKGROUND:Many people with schizophrenia smoke cannabis, and it is unclear why a large proportion do so and if the effects are harmful or beneficial. It is also unclear what the best method is to allow people with schizophrenia to alter their cannabis intake. OBJECTIVES:To assess the effects of specific psychological...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbu168
更新日期:2015-03-01 00:00:00
abstract::A pilot study of the effects of metacognition-oriented social skills training (MOSST) on social functioning in patients with schizophrenia spectrum disorders (SSDs) reported promising results. The main purpose of the current trial was to compare the effectiveness and potential benefits of MOSST vs conventional social ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,随机对照试验
doi:10.1093/schbul/sbx168
更新日期:2018-10-17 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: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: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::We have previously reported on typically paranoid schizophrenic patients who attempted to see the President or other prominent American political figures based on hallucinations or delusional beliefs. By obtaining arrest records on these White House Cases (WHCs), we were able to determine which individuals had murder ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/14.2.279
更新日期:1988-01-01 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