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-driven clustering of structural MRI (sMRI) data was used to identify 2 subtypes of schizophrenia patients drawn from a US-based open science repository (n = 71) and we quantified classification improvements compared to controls (n = 74) using supervised machine learning. We externally validated the unsupervised and supervised learning models in a heterogeneous German validation sample (n = 316), and characterized symptom, cognition, and longitudinal symptom change signatures. Stratification improved classification accuracies from 68.5% to 73% (subgroup 1) and 78.8% (subgroup 2), respectively. Increased accuracy was also found when models were externally validated, and an average gain of 9% was found in supplementary analyses. The first subgroup was associated with cortical and subcortical volume reductions coupled with substantially longer illness duration, whereas the second subgroup was mainly characterized by cortical reductions, reduced illness duration, and comparatively less negative symptoms. Individuals within each subgroup could be identified using just 10 clinical questions at an accuracy of 81.2%, and differential cognitive and symptom course signatures were suggested in multivariate analyses. Our findings suggest that sMRI-based subtyping enhances the neuroanatomical discrimination of schizophrenia by identifying generalizable brain patterns that align with a clinical staging model of the disorder. These findings could be used to improve illness stratification for biomarker-based computer-aided diagnoses.
journal_name
Schizophr Bulljournal_title
Schizophrenia bulletinauthors
Dwyer DB,Cabral C,Kambeitz-Ilankovic L,Sanfelici R,Kambeitz J,Calhoun V,Falkai P,Pantelis C,Meisenzahl E,Koutsouleris Ndoi
10.1093/schbul/sby008subject
Has Abstractpub_date
2018-08-20 00:00:00pages
1060-1069issue
5eissn
0586-7614issn
1745-1701pii
4911426journal_volume
44pub_type
杂志文章abstract::Families of study children were interviewed, with a focus on parents' observations of the personality and behavior of their offspring. The family interview was also the primary source of information about the home environment and possible psychopathology in nonschizophrenic parents. By parental report, index children ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/11.1.112
更新日期:1985-01-01 00:00:00
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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
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbq028
更新日期:2010-05-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/schbul/23.2.317
更新日期:1997-01-01 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
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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
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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::Individuals with psychoses have brain alterations, particularly in frontal and temporal cortices, that may be particularly prominent, already at illness onset, in those more likely to have poorer symptom remission following treatment with the first antipsychotic. The identification of strong neuroanatomical markers of...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbaa115
更新日期:2020-10-15 00:00:00
abstract::Medical geology is the application of trace element geography to epidemiology. This approach is used to compare the geographic distribution of selenium and other trace elements in soil and food with that of high schizophrenia rates in the United States and other countries. Since the comparison is most statistically si...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/20.2.387
更新日期:1994-01-01 00:00:00
abstract::Disrupted thalamo-cortical connectivity is regarded as a core psychopathology in patients diagnosed with schizophrenia. However, whether the thalamo-cortical white matter connectivity is disrupted before the onset of psychosis is still unknown. To determine this gap in knowledge, the strength of thalamo-cortical white...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbv169
更新日期:2016-05-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 评论,杂志文章
doi:10.1093/schbul/sbu139
更新日期:2015-01-01 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
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbq100
更新日期:2011-01-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type:
doi:10.1093/schbul/sbt128
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND:Neuropsychological deficits predate overt psychosis and overlap with the impairments in the established disease. However, to date, no single neurocognitive measure has shown sufficient power for a prognostic test. Thus, it remains to be determined whether multivariate neurocognitive pattern classification co...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbr037
更新日期:2012-11-01 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
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbq040
更新日期:2011-11-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a033480
更新日期:2000-01-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbi014
更新日期:2005-07-01 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
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/6.3.404
更新日期:1980-01-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/oxfordjournals.schbul.a007060
更新日期:2004-01-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
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更新日期:2005-10-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/9.1.55
更新日期:1983-01-01 00:00:00
abstract::The European Psychiatric Services: Inputs Linked to Outcomes and Needs (EPSILON) study was a EU BIOMED-2-funded comparative, cross-national, cross-sectional study aimed (1) to produce standardized versions of five key research instruments in five languages, and (2) to compare the characteristics, needs, and life quali...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章,多中心研究
doi:10.1093/oxfordjournals.schbul.a007029
更新日期:2003-01-01 00:00:00
abstract:INTRODUCTION:Auditory hallucinations are a hallmark symptom of schizophrenia. The neural basis of auditory hallucinations was examined using data from a working memory task. Data were acquired within a multisite consortium and this unique dataset provided the opportunity to analyze data from a large number of subjects ...
journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/sbn142
更新日期:2009-01-01 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
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journal_title:Schizophrenia bulletin
pub_type: 历史文章,杂志文章
doi:10.1093/schbul/sbs076
更新日期:2012-09-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章,评审
doi:10.1093/schbul/7.4.662
更新日期:1981-01-01 00:00:00
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journal_title:Schizophrenia bulletin
pub_type: 杂志文章
doi:10.1093/schbul/21.2.227
更新日期:1995-01-01 00:00:00