Abstract:
:The present functional magnetic resonance imaging study investigated the neural correlates of practice-associated activation changes in patients with schizophrenia and their association with symptom severity. A group of patients (n = 24) were divided into more successful and less successful learners and were asked to perform a verbal overlearning task in the scanner. We found that both patient groups profited from practice, showing significant decreases in mean response times as well as significant learning-related decreases in cerebral activation. Direct comparison between groups yielded a relative hyperactivation in the group of the less successful learners at the beginning of practice, which showed a reduction with increasing practice. This was reflected by relatively stronger signal decreases in a predominantly fronto-parieto-cerebellar network. In the group of less successful learners, there was a negative correlation between general symptom scores and learning-related signal decreases in a task-relevant network involving cerebellar, inferior and middle frontal (BA 45/47, 46), superior parietal (BA 31), and superior temporal (BA 39) regions. Present data indicate that hyperactivity under high task demands might serve to identify those patients with less potential to profit from practice. However, at least in the context of moderate- to low-working memory demands, this activation abnormality seems to constitute a state rather than a trait characteristic, which patients manage to reduce by successful short-term learning. The findings also suggest that successful learners can better compensate potentially interfering effects exerted by disorder-related psychopathology.
journal_name
Schizophr Bulljournal_title
Schizophrenia bulletinauthors
Koch K,Wagner G,Schachtzabel C,Schultz C,Sauer H,Schlösser RGdoi
10.1093/schbul/sbq028subject
Has Abstractpub_date
2010-05-01 00:00:00pages
486-95issue
3eissn
0586-7614issn
1745-1701pii
sbq028journal_volume
36pub_type
杂志文章abstract::Traditional psychiatric treatment approaches have not been very successful with the "revolving door patient." A variety of findings suggest that the social network, as opposed to the individual patient, may be a more viable locus for intervention. A conceptual review and analysis of the literature reveals two construc...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/12.2.262
更新日期:1986-01-01 00:00:00
abstract::Advances in treatment technologies and development of evidence-based standards of care demand better methods for routine assessment of outcomes for schizophrenia in systems of care. This article describes the development and psychometrics of a new instrument to assess outcomes of routine care for persons with schizoph...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a007001
更新日期:2003-01-01 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::Psychiatric research, including the search for predisposing genes, has tended to proceed under the assumptions that schizophrenia and bipolar disorder, as defined in Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, and International Statistical Classification of Diseases, 10th Revision, are discr...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbm053
更新日期:2007-07-01 00:00:00
abstract::Psychotic patients with a lifetime history of cannabis use generally show better cognitive functioning than other psychotic patients. Some authors suggest that cannabis-using patients may have been less cognitively impaired and less socially withdrawn in their premorbid life. Using a dataset comprising 948 patients wi...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbz077
更新日期:2020-04-10 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::Designs of clinical trials that will permit evaluation of independent, additive, and interactive effects of drugs and psychosocial treatments are described. The central feature of such designs is that they incorporate control conditions for both classes of treatment. Data from the articles in this issue are drawn upon...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/6.1.131
更新日期:1980-01-01 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::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::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::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::Antipsychotic medications are viewed as cornerstones for both the short-term and long-term treatment of schizophrenia. However, evidence on long-term (10 or more years) efficacy of antipsychotics is mixed. Double-blind discontinuation studies indicate significantly more relapses in unmedicated schizophrenia patients i...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sbt034
更新日期:2013-09-01 00:00:00
abstract::Psychotic experiences may be understood as altered information processing due to aberrant neural computations. A prominent example of such neural computations is the computation of prediction errors (PEs), which signal the difference between expected and experienced events. Among other areas showing PE coding, hippoca...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/sby154
更新日期:2019-09-11 00:00:00
abstract::The literature on schizophrenia has reported a trend toward higher concordance rates for females in both monozygotic and dizygotic same-sexed twins. The validity of this finding is open to question. Rosenthal (1961 and 1962) pointed out that females are more likely than males to become inhabitants of chronic wards. Mo...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/4.1.14
更新日期:1978-01-01 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::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::Identifying distinctive subtypes of schizophrenia could ultimately enhance diagnostic and prognostic accuracy. We aimed to uncover neuroanatomical subtypes of chronic schizophrenia patients to test whether stratification can enhance computer-aided discrimination of patients from control subjects. Unsupervised, data-dr...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sby008
更新日期:2018-08-20 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::A series of human and animal investigations has suggested that altered expression and function of the alpha7-nicotinic cholinergic receptor may be responsible for the auditory sensory gating deficit characterized in schizophrenia patients and their relatives as diminished suppression of an auditory-evoked response (P5...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/oxfordjournals.schbul.a033320
更新日期:1998-01-01 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::Many brain regions and circuits have been implicated in the neuropathology of schizophrenia. Drs. Bogerts and Jones have reviewed the evidence that links the disorder to temporal limbic structures and to frontal-thalamic circuits, respectively. Each article is an important update on what we know about the relevance of...
journal_title:Schizophrenia bulletin
pub_type: 评论,杂志文章
doi:10.1093/schbul/23.3.537
更新日期:1997-01-01 00:00:00
abstract::The design of the Positive and Negative Syndrome Scale (PANSS) with item levels ranging from 1 to 7 leads to the trivial result that the 30-item scale's zero level (no symptoms) is 30. This causes serious problems when ratios are calculated which always implicitly depend on a natural zero point (equals 0). Recent publ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbp124
更新日期:2010-05-01 00:00:00
abstract::Patients with schizophrenia are severely impaired in crucial aspects of neurocognitive function. This impairment is the strongest clinical correlate of poor long-term outcome and adaptive dysfunction. Reports of neurocognitive enhancement with second generation antipsychotic medications have thus offered promise for i...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a006990
更新日期:2003-01-01 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:BACKGROUND:Executive control of attention in schizophrenia has recently been assessed by means of the Attention Network Test (ANT). In the past, for tasks assessing executive attention, findings in schizophrenia have been contradictory, among others suggesting a lack of increased stimulus interference effects. Attentio...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbm155
更新日期:2008-11-01 00:00:00
abstract::Clinical descriptions of perceptual and attentional anomalies in schizophrenia emphasize phenomena such as flooding, or inundation, by sensory stimuli. A failure of sensory "gating" mechanisms in the brain is hypothesized to account for these symptoms, and this hypothesis has led to a marked interest in their putative...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a033402
更新日期:1999-01-01 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::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
pub_type: 杂志文章,多中心研究
doi:10.1093/schbul/sbv109
更新日期:2015-11-01 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::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