TY - JOUR
T1 - Stress is a bad advisor. Stress primes poor decision making in deluded psychotic patients
AU - Moritz, Steffen
AU - Köther, Ulf
AU - Hartmann, Maike
AU - Lincoln, Tania M.
PY - 2015/9/21
Y1 - 2015/9/21
N2 - Stress is implicated in the onset of psychosis but the complex links between stress and psychotic breakdown are yet poorly understood. For the present study, we examined whether two prominent cognitive biases in psychosis, jumping to conclusions and distorted attribution, in conjunction with neuropsychological deficits play a role in this process. Thirty participants with schizophrenia and acute delusional symptoms were compared with 29 healthy controls across three conditions involving a noise stressor, a social stressor or no stressor. Under each condition participants had to perform parallel versions of cognitive bias tasks and neuropsychological tests including a probabilistic reasoning task (jumping to conclusions), the revised Internal, Personal and Situational Attributions Questionnaire (IPSAQ-R; attributional style), and the Corsi block-tapping task (nonverbal memory). Stress, particularly noise, aggravated performance differences of patients relative to controls on memory. Participants with psychosis demonstrated an escalated jumping to conclusion bias under stress. At a medium effect size, patients made more monocausal attributions, which increased under social stress. The present study is partially in line with prior studies. It suggests that stress negatively affects cognition in psychosis more than in controls, which is presumably insufficiently realized by patients and thus not held in check by greater response hesitance. Raising patients’ awareness about these response tendencies and encouraging them to be more cautious in their judgments under conditions of increased stress may prove beneficial for improving positive symptoms.
AB - Stress is implicated in the onset of psychosis but the complex links between stress and psychotic breakdown are yet poorly understood. For the present study, we examined whether two prominent cognitive biases in psychosis, jumping to conclusions and distorted attribution, in conjunction with neuropsychological deficits play a role in this process. Thirty participants with schizophrenia and acute delusional symptoms were compared with 29 healthy controls across three conditions involving a noise stressor, a social stressor or no stressor. Under each condition participants had to perform parallel versions of cognitive bias tasks and neuropsychological tests including a probabilistic reasoning task (jumping to conclusions), the revised Internal, Personal and Situational Attributions Questionnaire (IPSAQ-R; attributional style), and the Corsi block-tapping task (nonverbal memory). Stress, particularly noise, aggravated performance differences of patients relative to controls on memory. Participants with psychosis demonstrated an escalated jumping to conclusion bias under stress. At a medium effect size, patients made more monocausal attributions, which increased under social stress. The present study is partially in line with prior studies. It suggests that stress negatively affects cognition in psychosis more than in controls, which is presumably insufficiently realized by patients and thus not held in check by greater response hesitance. Raising patients’ awareness about these response tendencies and encouraging them to be more cautious in their judgments under conditions of increased stress may prove beneficial for improving positive symptoms.
KW - Cognition
KW - Jumping to conclusions
KW - Monocausal attributions
KW - Psychosis
KW - Stress
KW - Vulnerability
UR - http://www.scopus.com/inward/record.url?scp=84939562056&partnerID=8YFLogxK
U2 - 10.1007/s00406-015-0585-1
DO - 10.1007/s00406-015-0585-1
M3 - Article
C2 - 25724559
AN - SCOPUS:84939562056
SN - 0940-1334
VL - 265
SP - 461
EP - 469
JO - European Archives of Psychiatry and Clinical Neuroscience
JF - European Archives of Psychiatry and Clinical Neuroscience
IS - 6
ER -