Patterns of adaptation in obsessive-compulsive disorder: multivariate indicators of greater variability and linear change compared to controls.
Patterns of adaptation to conflict in persons with Obsessive-Compulsive Disorder were assessed with the Serial Color-Word Test. Obsessive-Compulsive patients (n=50) were compared with an age- and sex-matched group of nonclinical volunteers. Measures of linear and nonlinear change in reading times during each of the five consecutive trials of the test were compared between groups by means of a multivariate model with doubly repeated measures. The multivariate analysis yielded a significant between-groups result (Wilks Lambda = .76, p < .001), mainly supported by higher values of nonlinear change in the Obsessive-Compulsive group. Thus, the discriminative ability of the Serial Color-Word Test was confirmed when individual differences were removed from the error term.
Rubino
I Alex
IA
University of Rome-Tor Vergata. I.Rubino@Med.Uniroma2.it
Pezzarossa
Bianca
B
D'Arconte
Valentina
V
Siracusano
Alberto
A
D000223:Adaptation, Psychological; D000293:Adolescent; D000328:Adult; D001288:Attention; D003118:Color Perception; D003220:Conflict, Psychological; D004193:Discrimination Learning; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests / Q000706:statistics & numerical data; D017711:Nonlinear Dynamics; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis / Q000523:psychology*; D011930:Reaction Time; D012016:Reference Values; D012660:Semantics