References of "Laloyaux, Julien"
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See detailTesting a model of auditory hallucinations: the role of negative emotions and cognitive resources
Laloyaux, Julien ULiege; De Keyser, F; Pinchard, A et al

in Cognitive Neuropsychiatry (in press)

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See detailDisentangling false perceptions elicited by white noise in people with auditory hallucinations: The role of sound frequencies and expectations.
Laloyaux, Julien ULiege; Specht, K; Hugdahl, K et al

in Schizophrenia Bulletin (in press)

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See detailAge effect on the hierarchical structure of paranoia in the general population: the role of rumination and thought suppression.
Della Libera, Clara ULiege; Laroi, Frank ULiege; Raffard, Stéphan et al

in Schizophrenia Bulletin (in press)

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See detailVidéos 360° : Validation d'un nouvel outil de mesure de la paranoïa dans la population générale.
Della Libera, Clara ULiege; Quertemont, Etienne ULiege; Laloyaux, Julien ULiege et al

Poster (2019, June 06)

Introduction : Depuis une quinzaine d’années, la réalité virtuelle est utilisée comme nouvel outil pour étudier la paranoïa. Un tel dispositif est cependant coûteu et requiert la modélisation d’avatar peu ... [more ▼]

Introduction : Depuis une quinzaine d’années, la réalité virtuelle est utilisée comme nouvel outil pour étudier la paranoïa. Un tel dispositif est cependant coûteu et requiert la modélisation d’avatar peu réalistes en termes d’expressions faciales et corporelles. Une alternative intéressante est l’utilisation de vidéos 360° permettant la création d’environnements immersifs plus accessibles et écologiques. L’objectif de cette étude est de valider l’utilisation de vidéos 360° comme nouvelle mesure de la paranoïa dans la population générale. Méthode : Un bar, un ascenseur et une bibliothèque ont été filmés avec 4 à 15 acteurs afin de représenter une situation de vie quotidienne. Cent septante participants ont été évalués sur leur tendance générale à la paranoïa (trait) avant d’être insérés dans l’une des vidéos à l’aide d’un casque Oculus Go. Les participants ont ensuite complété une mesure de paranoïa état, une mesure du sentiment de présence et répondu à un entretien semi-structuré interrogeant leurs interprétations des interactions perçues au sein des vidéos. Résultats : Dans l’ascenseur et la bibliothèque uniquement, les résultats montrent que les participants développent un sentiment de présence au sein des vidéos. De plus, de bonnes corrélations entre la paranoïa trait et la paranoïa état indiquent une bonne validité convergente de la mesure. Enfin, les participants avec un haut score de paranoïa trait rapportent des intentions malveillantes à leur égard de la part des acteurs durant l’entretien semi-structuré. Conclusion : La présente étude valide l’utilisation de vidéos 360° pour l’étude de la paranoïa. [less ▲]

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See detailPotential Applications of Digital Technology in Assessment, Treatment and Self-help for Hallucinations
Thomas, N; Bless, J; Alderson-Day, B et al

in Schizophrenia Bulletin (2019)

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See detailA Cross-national investigation of Hallucination Like-Experiences in 10 countries: The E-CLECTIC study.
Siddi, S; Ocha, S; Laroi, Frank ULiege et al

in Schizophrenia Bulletin (2019)

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See detailWomen and men are equally bad at multitasking.
Laloyaux, Julien ULiege; Laroi, Frank ULiege; Hirnstein, M

in Harward Business Review (2018)

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See detailSource flexibility in schizophrenia: Specificity and role in auditory hallucinations
Laloyaux, Julien ULiege; Della Libera, Clara ULiege; Laroi, Frank ULiege

in Cognitive Neuropsychiatry (2018), 23

Introduction: One important aspect of human cognition relies on the ability to bias attention towards stimulus-independent and stimulus-oriented thoughts and to switch between these states–or source ... [more ▼]

Introduction: One important aspect of human cognition relies on the ability to bias attention towards stimulus-independent and stimulus-oriented thoughts and to switch between these states–or source flexibility. This mechanism has received very little attention in the literature, and in particular in schizophrenia. Moreover, there is good reason to believe that this mechanism could also be implicated in hallucinations, but this hypothesis has never been examined. Thus, the aim of the present study was, for the first time in the literature, to explore source flexibility abilities in schizophrenia and their potential relations with auditory hallucinations. Methods: Forty persons diagnosed with schizophrenia and 26 healthy controls were evaluated with tasks assessing source flexibility, cognitive flexibility and processing speed. Patients were also assessed with a measure of hallucinations and delusions. Results: Results revealed that persons diagnosed with schizophrenia presented a poorer performance than healthy controls for source flexibility. Moreover, results demonstrated that source flexibility performance could not be explained by a more general impairment of processing speed or by difficulties in cognitive flexibility. Finally, source flexibility was found to be related to hallucinations. Conclusions: Source flexibility plays an important role in schizophrenia and in particular is a cognitive mechanism involved in hallucinations. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group. [less ▲]

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See detail. Hallucinations in Schizophrenia and Parkinson’s disease: A phenomenological approach.
Llorca, P.-M; Pereira, B; Laloyaux, Julien ULiege et al

Conference (2018)

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See detailPsychotic experiences in a Norwegian sample – Tentative results of a questionnaire validation.
Kusztrits, I; Laroi, Frank ULiege; Laloyaux, Julien ULiege et al

in Schizophrenia Bulletin (2018), 44

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See detailA direct examination of the cognitive underpinnings of multitasking abilities: A first study examining schizophrenia
Laloyaux, Julien ULiege; Van der Linden, Martial ULiege; Nuechterlein, K. H. et al

in Psychiatry Research (2018), 268

Many real world activities are complex and require multitasking abilities. However, the nature of these abilities remains poorly understood, and in particular in schizophrenia. The aim of the present ... [more ▼]

Many real world activities are complex and require multitasking abilities. However, the nature of these abilities remains poorly understood, and in particular in schizophrenia. The aim of the present study was to provide a better understanding of such abilities with the help of a newly developed computerized tool, the Computerized Meeting Preparation Task (CMPT). Fifty-seven individuals with schizophrenia and 39 healthy controls completed the CMPT and an extensive cognitive battery. Patients were also evaluated with a series of clinical measures. During the CMPT, participants are asked to prepare a room for a meeting while, at the same time, dealing with interruptions, solving problems, and remembering prospective memory instructions. The CMPT was found to significantly differentiate patients and healthy controls for several variables. Results also showed that multitasking abilities were related to a large array of cognitive functions and, in particular, to those associated to executive functioning. These relations were not explained by the presence of a general cognitive impairment. Finally, a double dissociation between multitasking abilities and performance on standard cognitive tests was observed. Altogether, these results underline the importance of evaluating multitasking abilities in schizophrenia as it allows detecting cognitive difficulties that cannot be identified by standard cognitive tests. © 2018 Elsevier B.V. [less ▲]

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See detailNo sex difference in an everyday multitasking paradigm
Hirnstein, M; Laroi, Frank ULiege; Laloyaux, Julien ULiege

in Psychological Research (2018)

According to popular beliefs and anecdotes, females best males when handling multiple tasks at the same time. However, there is relatively little empirical evidence as to whether there truly is a sex ... [more ▼]

According to popular beliefs and anecdotes, females best males when handling multiple tasks at the same time. However, there is relatively little empirical evidence as to whether there truly is a sex difference in multitasking and the few available studies yield inconsistent findings. We present data from a paradigm that was specifically designed to test multitasking abilities in an everyday scenario, the computerized meeting preparation task (CMPT), which requires participants to prepare a room for a meeting and handling various tasks and distractors in the process. Eighty-two males and 66 females with a wide age range (18–60 years) and a wide educational background completed the CMPT. Results revealed that none of the multitasking measures (accuracy, total time, total distance covered by the avatar, a prospective memory score, and a distractor management score) showed any sex differences. All effect sizes were d ≤ 0.18 and thus not even considered “small” by conventional standards. The findings are in line with other studies that found no or only small gender differences in everyday multitasking abilities. However, there is still too little data available to conclude if, and in which multitasking paradigms, gender differences arise. [less ▲]

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