Abstract:
:Research has demonstrated that individuals with schizophrenia fail to appropriately use negative feedback to guide learning. These learning deficits are thought to arise from abnormalities in midbrain dopamine activity. Primary and enduring negative symptoms are also associated with abnormal dopamine activity and are expected to produce more severe deficits in learning when they present in individuals with schizophrenia. The current study examines this matter by comparing individuals with deficit syndrome schizophrenia, which is characterized by primary and enduring negative symptoms, to individuals with nondeficit syndrome schizophrenia and to normal controls in their use of positive feedback and negative feedback to guide learning on the first four cards of the WCST. Participants included 67 individuals with schizophrenia (15 deficit; 52 nondeficit syndrome) and 51 healthy controls. Accuracy data from the first 4 cards of the WCST and measures of global test performance were examined. Individuals with schizophrenia were significantly less accurate than controls in their performance on early (pre-shift) WCST trials, and this impairment was significantly greater in patients with deficit than nondeficit schizophrenia. Additionally, accuracy across the first 4 WCST cards significantly predicted the number of categories completed and percentage of perseverative errors across the entire test. These findings suggest that negative symptoms of schizophrenia are associated with difficulty using negative feedback to adaptively guide behavior, and are consistent with the notion that abnormal DA signaling contributes to the higher-order executive functioning impairments seen in schizophrenia with severe negative symptoms.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Vogel SJ,Strauss GP,Allen DNdoi
10.1016/j.schres.2013.07.052subject
Has Abstractpub_date
2013-12-01 00:00:00pages
97-101issue
1-3eissn
0920-9964issn
1573-2509pii
S0920-9964(13)00430-1journal_volume
151pub_type
杂志文章abstract:BACKGROUND:Stress has been associated with the onset of schizophrenia and exacerbation of psychotic symptoms. Patients with schizotypal personality disorder (SPD), the prototypic schizophrenia spectrum disorder, do not develop the frank psychosis of schizophrenia and appear clinically to be less reactive to stress than...
journal_title:Schizophrenia research
pub_type: 临床试验,杂志文章,随机对照试验
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abstract::Recent molecular genetic studies have demonstrated X-chromosome abnormalities in the transmission of psychosis, a finding that may contribute to understanding sex differences in the disorder. Using our family high risk paradigm, we tested the hypothesis that there are sex-specific patterns of transmission of psychosis...
journal_title:Schizophrenia research
pub_type: 杂志文章
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(00)00062-1
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2018.12.005
更新日期:2019-04-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2016.01.048
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2018.05.020
更新日期:2018-11-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2017.03.009
更新日期:2017-05-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2008.05.020
更新日期:2008-09-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(99)00150-4
更新日期:2000-07-07 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2010.01.033
更新日期:2010-06-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2012.09.007
更新日期:2012-12-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2014.07.021
更新日期:2014-09-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2010.09.003
更新日期:2011-03-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2009.05.031
更新日期:2009-09-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2009.04.025
更新日期:2009-07-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2015.04.003
更新日期:2015-06-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2005.09.007
更新日期:2006-01-31 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2017.09.026
更新日期:2018-05-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/0920-9964(92)90039-8
更新日期:1992-07-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(99)00045-6
更新日期:1999-11-30 00:00:00
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pub_type: 杂志文章
doi:10.1016/j.schres.2018.03.006
更新日期:2018-09-01 00:00:00
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pub_type: 杂志文章,meta分析
doi:10.1016/j.schres.2010.01.011
更新日期:2010-07-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.schres.2009.07.013
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:Higher liability to psychosis is associated with low self-esteem and increased sensitivity to social stress. Recently, we reported a positive relation between liability to psychosis and affective and psychotic responses to social stress. This study investigated how self-esteem moderates paranoia, peak subjec...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2018.06.042
更新日期:2018-12-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(01)00201-8
更新日期:2002-05-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2015.08.029
更新日期:2015-10-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2008.03.025
更新日期:2008-08-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章,多中心研究
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更新日期:2012-04-01 00:00:00
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journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2009.08.014
更新日期:2009-11-01 00:00:00