Abstract
Difficulties in adapting to the social environment and
interacting with it constitute one of the main complains reported by people
suffering from psychiatric disorders, most notably schizophrenia.
The recognition of emotional facial expressions (EFE)
is one of the core skills required for individuals to adapt to their
environement.
This research aims to study schizophrenic people's
ability in EFE recognition and to ascertain the existence of a link between
difficulties in EFE recognition and the visual exploration pattern of
schizophrenic adults.
In this regard, two recognition tasks have been
selected. Both consist of a multiple-choice within five emotion. The first one
higlights abilities in emotional recognition, and the second one, which has
been conducted with the eye trecker Tobii Pro II is dedicated to the study of
the visual exploration pattern of schizophrenic adults.
In this research, a sample of 7 people diagnosed with
schizophrenia and aged from 31 to 54 years old were matched according to gender
and age with 7 control subjects.
We hypothesized that people with schizophrenia would
show a deficit of recognition of EFE and that there were links between the
parameters of visual exploration and the indicators of emotional recognition.
In other word, we wanted to test the hypothesis that the type of difficulties
in facial emotional recognition are linked with particular characteristics of
visual exploration.
Our results fail to confirm that first hypothesis
since a significative deficit of facial recognition of EFE of schizophrenic
people has been observed just for one of the three indicators of
recognition.
Key words : schizophrenia ; recognition of emotional
facial expressions; pattern of visual exploration; eye tracker ; Tobii
pro
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UNIVERSITE LUMIERE | LYON 2
Sommaire
Table des matières
Introduction - 7 -
La schizophrénie - 9 -
Caractéristiques cliniques et diagnostic - 9 -
Caractéristiques cognitives - 10 -
Cognition sociale, reconnaissance des expressions faciales
émotionnelles et remédiations .. - 11 -
Un pattern d'exploration visuelle atypique -
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Problématique - 14 -
Méthode - 15 -
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Participants
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Matériel
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Procédure
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Résultats - 19
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Comparaison des groupes test et contrôle sur trois indices
de reconnaissance des expressions faciales
émotionnelles (reconnaissances correctes, seuil de
perception, intrusions) - 19 -
Liens entre les paramètres oculo-moteurs, les
spécificités de reconnaissance des EFE sur les 3
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indicateurs de reconnaissance et la symptomatologie des patients
schizophrènes.
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Discussion
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Conclusion
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Bibliographie
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Annexes
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Annexe A : Tableau d'information sur les sujets
schizophrènes et sur les sujets appariés pour
l'expérience 1 - 32 -
Annexe B : Les 16 visages utilisés issus de la KDEF data
base - 32 -
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Annexe C : Plaquette descriptive du projet de recherche clinique
adressée aux sujets test .. - 33 -
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