Differential relationships between set-shifting abilities and dimensions of insight in schizophrenia.
BACKGROUND
To assess insight in a large sample of patients with schizophrenia and to study its relationship with set shifting as an executive function.


METHODS
The insight of a sample of 161 clinically stable, community-dwelling patients with schizophrenia was evaluated by means of the Scale to Assess Unawareness of Mental Disorder (SUMD). Set shifting was measured using the Trail-Making Test time required to complete part B minus the time required to complete part A (TMT B-A). Linear regression analyses were performed to investigate the relationships of TMT B-A with different dimensions of general insight.


RESULTS
Regression analyses revealed a significant association between TMT B-A and two of the SUMD general components: 'awareness of mental disorder' and 'awareness of the efficacy of treatment'. The 'awareness of social consequences' component was not significantly associated with set shifting.


CONCLUSIONS
Our results show a significant relation between set shifting and insight, but not in the same manner for the different components of the SUMD general score.
Department of Psychiatry, Instituto de Investigación Hospital 12 de Octubre, Madrid, Spain.
J
J
Diez-Martin
M
M
Moreno-Ortega
A
A
Bagney
R
R
Rodriguez-Jimenez
D
D
Padilla-Torres
E M
EM
Sanchez-Morla
J L
JL
Santos
T
T
Palomo
M A
MA
Jimenez-Arriero
D000328:Adult; D001364:Awareness; D003071:Cognition; D003430:Cross-Sectional Studies; D056344:Executive Function; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D011618:Psychotic Disorders / Q000523:psychology; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D012718:Set, Psychology; D013030:Spain; D055815:Young Adult