title: [Task related stress and cognitive control in patients with schizophrenia].
abstract: OBJECTIVE
  Working memory deficits might be one of the major cognitive impairments in schizophrenia. Some researchers argue, that cognitive control is especially disturbed among schizophrenia patients. It was found, that low working memory capacity in schizophrenia may be explained by the fact that irrelevant stimuli occupy patients' storage space that could otherwise be used to hold relevant information.
  
  
  OBJECTIVE
  We examined, whether increased distress as well as the tendency to focus on irrelevant information (worry) are related to cognitive control in schizophrenia.
  
  
  METHODS
  The participants were 28 patients with paranoid schizophrenia and a control group (n=28). The cognitive control was measured with the short version of Attention Networks Test (ANT), and the state of worry and distress was assessed by the short version of the Dundee Stress State Questionnaire (DSSQ) in a Polish adaptation.
  
  
  RESULTS
  The stress states of worry and distress were higher among patients in comparison to controls. Moreover, worry mediated the relationship between group and cognitive control task.
  
  
  CONCLUSIONS
  The mediation model suggested that patient's poorer performance on cognitive control task might partially explained by their increased state of worry (focus on task unrelated thoughts) measured just before the task.
authors.affiliation: Wydział Psychologii, Uniwersytetu Warszawskiego.
authors.forename: Marcin
authors.initials: M
authors.lastname: Zajenkowski
authors.affiliation: Wydział Psychologii Uniwersystetu Warszawskiego.
authors.forename: Rafał
authors.initials: R
authors.lastname: Styła
authors.affiliation: III Klinika Psychiatryczna IPiN w Warszawie.
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Jędrasik-Styła
mesh_terms: D000328:Adult; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D012559:Schizophrenia / Q000150:complications*; D012565:Schizophrenic Psychology; D013315:Stress, Psychological / Q000175:diagnosis* / Q000209:etiology; D011795:Surveys and Questionnaires / Q000592:standards*; D055815:Young Adult
keywords: cognitive control,  stress, schizophrenia