title: Patterns of adaptation in obsessive-compulsive disorder: multivariate indicators of greater variability and linear change compared to controls.
abstract: 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.
authors.affiliation: University of Rome-Tor Vergata. I.Rubino@Med.Uniroma2.it
authors.forename: I Alex
authors.initials: IA
authors.lastname: Rubino
authors.forename: Bianca
authors.initials: B
authors.lastname: Pezzarossa
authors.forename: Valentina
authors.initials: V
authors.lastname: D'Arconte
authors.forename: Alberto
authors.initials: A
authors.lastname: Siracusano
mesh_terms: 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