Exploring rationality in schizophrenia
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Exploring rationality in schizophrenia. / Revsbech, Rasmus; Mortensen, Erik Lykke; Owen, Gareth; Frederiksen, Julie E Nordgaard; Jansson, Lennart Bertil; Sæbye, Ditte; Flensborg-Madsen, Trine; Parnas, Josef.
In: British Journal of Psychiatry Open, Vol. 1, No. 1, 09.2015, p. 98-103.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Exploring rationality in schizophrenia
AU - Revsbech, Rasmus
AU - Mortensen, Erik Lykke
AU - Owen, Gareth
AU - Frederiksen, Julie E Nordgaard
AU - Jansson, Lennart Bertil
AU - Sæbye, Ditte
AU - Flensborg-Madsen, Trine
AU - Parnas, Josef
PY - 2015/9
Y1 - 2015/9
N2 - BackgroundEmpirical studies of rationality (syllogisms) in patients withschizophrenia have obtained different results. One study foundthat patients reason more logically if the syllogism is presentedthrough an unusual content.AimsTo explore syllogism-based rationality in schizophrenia.MethodThirty-eight first-admitted patients with schizophrenia and 38healthy controls solved 29 syllogisms that varied inpresentation content (ordinary v. unusual) and validity (valid v.invalid). Statistical tests were made of unadjusted and adjustedgroup differences in models adjusting for intelligence andneuropsychological test performance.ResultsControls outperformed patients on all syllogism types, but thedifference between the two groups was only significant forvalid syllogisms presented with unusual content. However, whenadjusting for intelligence and neuropsychological test performance,all group differences became non-significant.ConclusionsWhen taking intelligence and neuropsychological performanceinto account, patients with schizophrenia and controls performsimilarly on syllogism tests of rationality.
AB - BackgroundEmpirical studies of rationality (syllogisms) in patients withschizophrenia have obtained different results. One study foundthat patients reason more logically if the syllogism is presentedthrough an unusual content.AimsTo explore syllogism-based rationality in schizophrenia.MethodThirty-eight first-admitted patients with schizophrenia and 38healthy controls solved 29 syllogisms that varied inpresentation content (ordinary v. unusual) and validity (valid v.invalid). Statistical tests were made of unadjusted and adjustedgroup differences in models adjusting for intelligence andneuropsychological test performance.ResultsControls outperformed patients on all syllogism types, but thedifference between the two groups was only significant forvalid syllogisms presented with unusual content. However, whenadjusting for intelligence and neuropsychological test performance,all group differences became non-significant.ConclusionsWhen taking intelligence and neuropsychological performanceinto account, patients with schizophrenia and controls performsimilarly on syllogism tests of rationality.
U2 - 10.1192/bjpo.bp.115.000224
DO - 10.1192/bjpo.bp.115.000224
M3 - Journal article
VL - 1
SP - 98
EP - 103
JO - BJPsych Open
JF - BJPsych Open
SN - 2056-4724
IS - 1
ER -
ID: 156038630