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Excessive Checking Behavior During an Image Comparison Task in Schizophrenia

Published online by Cambridge University Press:  15 April 2020

N. Jaafari*
Affiliation:
Unité de recherche clinique intersectorielle en psychiatrie à vocation régionale Pierre-Deniker, centre hospitalier Henri-Laborit, Poitiers, FranceInserm UMR S1084, laboratoire de neurosciences expérimentales et cliniques, université de Poitiers, pôle biologie-santé, Poitiers, FranceCIC-P Inserm U 802, université de médecine et de pharmacie de Poitiers, centre hospitalier universitaire de Poitiers, Poitiers, FranceGroupement de recherche CNRS GDR 3557
N. Chopin
Affiliation:
Centre de recherches sur la cognition et l’apprentissage, CNRS UMR 7295 – université de Poitiers – Université François-Rabelais-de-Tours, Maison des Sciences de l’Homme et de la Société, 86073Poitiers cedex 9, France
C. Levy
Affiliation:
Unité de recherche clinique intersectorielle en psychiatrie à vocation régionale Pierre-Deniker, centre hospitalier Henri-Laborit, Poitiers, FranceCentre de recherches sur la cognition et l’apprentissage, CNRS UMR 7295 – université de Poitiers – Université François-Rabelais-de-Tours, Maison des Sciences de l’Homme et de la Société, 86073Poitiers cedex 9, France
J.-Y. Rotgé
Affiliation:
Unité de recherche clinique intersectorielle en psychiatrie à vocation régionale Pierre-Deniker, centre hospitalier Henri-Laborit, Poitiers, FranceInserm UMR S1084, laboratoire de neurosciences expérimentales et cliniques, université de Poitiers, pôle biologie-santé, Poitiers, France
N. Lafay
Affiliation:
Unité de recherche clinique intersectorielle en psychiatrie à vocation régionale Pierre-Deniker, centre hospitalier Henri-Laborit, Poitiers, France
W. Hammi
Affiliation:
Unité de recherche clinique intersectorielle en psychiatrie à vocation régionale Pierre-Deniker, centre hospitalier Henri-Laborit, Poitiers, France
F. Rigalleau
Affiliation:
Centre de recherches sur la cognition et l’apprentissage, CNRS UMR 7295 – université de Poitiers – Université François-Rabelais-de-Tours, Maison des Sciences de l’Homme et de la Société, 86073Poitiers cedex 9, France
B. Millet
Affiliation:
Service hospitalo-universitaire de psychiatrie adulte, centre hospitalier Guillaume-Régnier, Rennes, FranceGroupement de recherche CNRS GDR 3557
M.-O. Krebs
Affiliation:
Inserm U894, laboratoire de physiopathologie des maladies psychiatriques, Paris, FranceGroupement de recherche CNRS GDR 3557
N. Vibert
Affiliation:
Centre de recherches sur la cognition et l’apprentissage, CNRS UMR 7295 – université de Poitiers – Université François-Rabelais-de-Tours, Maison des Sciences de l’Homme et de la Société, 86073Poitiers cedex 9, France
*
*Corresponding author. Centre hospitalier Henri-Laborit, 370, avenue Jacques Coeur, 86021 Poitiers, France. Tel.: +33 5 49 44 58 02; fax: +33 5 49 44 58 00. E-mail address:nemat.jaafari@ch-poitiers.fr (N. Jaafari).
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Abstract

Background:

Patients with schizophrenia display significant working memory and executive deficits. In patients with obsessive-compulsive disorder (OCD), several studies suggest that working memory dysfunction may be one of the causes of compulsive checking behaviors. Hence, this study aimed at assessing whether patients with schizophrenia were impaired on an image comparison task used to measure checking behaviors, and whether the origin and profile of impairment on this task was different between schizophrenia and OCD.

Methods:

Eye movement recordings were used to assess the checking behavior of 24 patients with schizophrenia and 24 control participants who had to decide whether two images were different or identical. The verbal and visuo-spatial components of participants’ working memory were measured using the reading span and backward location span tests.

Results:

Compared to controls, patients with schizophrenia had reduced working memory spans and showed excessive checking behavior when comparing the two images. However, the intensity of their checking behavior was not significantly related to their working memory deficits.

Conclusions:

Several recent studies demonstrated that the excessive checking behaviors displayed by patients with OCD were related to working memory dysfunction. The absence of a relationship between the excessive checking behavior of patients with schizophrenia and their working memory deficits suggests that checking behaviors do not have the same origin in the two disorders.

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Type
Original article
Copyright
Copyright © Elsevier Masson SAS 2014

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