References of "Laloyaux, Julien"
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See detailMultitasking capacities in persons diagnosed with schizophrenia: A preliminary examination of their neurocognitive underpinnings and ability to predict real world functioning
Laloyaux, Julien ULg; Van der Linden, Martial ULg; Levaux, Marie-Noëlle ULg et al

in Psychiatry Research (in press)

Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia and in particular during multitasking activities. However, at present, patients' multitasking capacities ... [more ▼]

Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia and in particular during multitasking activities. However, at present, patients' multitasking capacities have not been adequately examined in the literature due to an absence of suitable assessment strategies. We thus recently developed a computerized real-life activity task designed to take into account the complex and multitasking nature of certain everyday life activities where participants are required to prepare a room for a meeting. Twenty-one individuals diagnosed with schizophrenia and 20 matched healthy controls completed the computerized task. Patients were also evaluated with a cognitive battery, measures of symptomatology and real world functioning. To examine the ecological validity, 14 other patients were recruited and were given the computerized version and a real version of the meeting preparation task. Results showed that performance on the computerized task was significantly correlated with executive functioning, pointing to the major implication of these cognitive processes in multitasking situations. Performance on the computerized task also significantly predicted up to 50% of real world functioning. Moreover, the computerized task demonstrated good ecological validity. These findings suggest the importance of evaluating multitasking capacities in patients diagnosed with schizophrenia in order to predict real world functioning. [less ▲]

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See detailMultitasking capacities in persons diagnosed with schizophrenia: A preliminary examination of their neurocognitive underpinnings and ability to predict real world functioning
Laloyaux, Julien ULg; Van der Linden, Martial ULg; Levaux, Marie-Noëlle ULg et al

Poster (2014, April 08)

Background: Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia. Moreover, patients seem to demonstrate particular difficulties during complex and ... [more ▼]

Background: Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia. Moreover, patients seem to demonstrate particular difficulties during complex and multitasking activities, such as cooking a meal (Semkovska et al., 2004). Multitasking refers to activities where the person has to: carry out and alternate between different tasks that vary in terms of priority, difficulty and duration; define the tasks’ targets; and where the person is faced with unexpected problems during the realization of these tasks (Burgess, 2000). However, at present, patients’ multitasking capacities have not been adequately examined in the literature due to an absence of suitable assessment strategies. We thus recently developed a computerized real-life activity task designed to take into account the complex and multitasking nature of certain everyday life activities where participants are required to prepare a room for a meeting – the Computerized Meeting Preparation Task (CMPT) Methods: Twenty-one individuals diagnosed with schizophrenia and 20 matched healthy controls completed the CMPT. During the CMPT, participants found themselves in a virtual room that they had to prepare for a meeting while respecting a list of instructions (the placement of the guests, the needed objects, the desired drinks, etc.). Patients were also evaluated with an extensive cognitive battery (assessing executive functions, attention, processing speed and memory), measures of symptomatology and real world functioning. To examine the ecological validity of the CMPT, 14 others patients were recruited and were given the computerized version and a real version of the meeting preparation task. Results: Results demonstrated that performance on the CMPT significantly differentiated patients and healthy controls for the total time to complete task, planning efficiency, and the respect of the instructions. Moreover, these variables were significantly correlated with executive functioning (i.e. cognitive flexibility and planning), suggesting the major implication of these cognitive processes in multitasking activities. Performance on the CMPT also significantly predicted up to 50% of real world functioning. Finally, performances on the computerized version and the real version of the meeting preparation task were highly correlated, suggesting good ecological validity. Discussion: In this study, we created a novel task involving the multitasking nature of real world activities. The results demonstrated that this approach provides a good indication of the real world functioning in patients diagnosed with schizophrenia. Moreover, results suggest a particular implication of executive functioning in multitasking activities. These findings suggest the importance of evaluating multitasking capacities in patients diagnosed with schizophrenia in order to predict real world functioning. [less ▲]

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See detailMultitasking capacities in persons diagnosed with schizophrenia: A preliminary examination of their neurocognitive underpinnings and ability to predict real world functioning
Laloyaux, Julien ULg; Van der Linden, Martial ULg; Levaux, Marie-Noëlle ULg et al

in Schizophrenia Research (2014, April), 153(Supl. 1), 344

Background: Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia. Moreover, patients seem to demonstrate particular difficulties during complex and ... [more ▼]

Background: Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia. Moreover, patients seem to demonstrate particular difficulties during complex and multitasking activities, such as cooking a meal (Semkovska et al., 2004). Multitasking refers to activities where the person has to: carry out and alternate between different tasks that vary in terms of priority, difficulty and duration; define the tasks’ targets; and where the person is faced with unexpected problems during the realization of these tasks (Burgess, 2000). However, at present, patients’ multitasking capacities have not been adequately examined in the literature due to an absence of suitable assessment strategies. We thus recently developed a computerized real-life activity task designed to take into account the complex and multitasking nature of certain everyday life activities where participants are required to prepare a room for a meeting – the Computerized Meeting Preparation Task (CMPT) Methods: Twenty-one individuals diagnosed with schizophrenia and 20 matched healthy controls completed the CMPT. During the CMPT, participants found themselves in a virtual room that they had to prepare for a meeting while respecting a list of instructions (the placement of the guests, the needed objects, the desired drinks, etc.). Patients were also evaluated with an extensive cognitive battery (assessing executive functions, attention, processing speed and memory), measures of symptomatology and real world functioning. To examine the ecological validity of the CMPT, 14 others patients were recruited and were given the computerized version and a real version of the meeting preparation task. Results: Results demonstrated that performance on the CMPT significantly differentiated patients and healthy controls for the total time to complete task, planning efficiency, and the respect of the instructions. Moreover, these variables were significantly correlated with executive functioning (i.e. cognitive flexibility and planning), suggesting the major implication of these cognitive processes in multitasking activities. Performance on the CMPT also significantly predicted up to 50% of real world functioning. Finally, performances on the computerized version and the real version of the meeting preparation task were highly correlated, suggesting good ecological validity. Discussion: In this study, we created a novel task involving the multitasking nature of real world activities. The results demonstrated that this approach provides a good indication of the real world functioning in patients diagnosed with schizophrenia. Moreover, results suggest a particular implication of executive functioning in multitasking activities. These findings suggest the importance of evaluating multitasking capacities in patients diagnosed with schizophrenia in order to predict real world functioning. [less ▲]

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See detailPerformance on a computerized shopping task significantly predicts real world functioning in persons diagnosed with bipolar disorder.
Laloyaux, Julien ULg; Pellegrini, Nadia; Mourad, Haitham et al

in Psychiatry Research (2013), 210(2), 465-471

Persons diagnosed with bipolar disorder often suffer from cognitive impairments. However, little is known concerning how these cognitive deficits impact their real world functioning. We developed a ... [more ▼]

Persons diagnosed with bipolar disorder often suffer from cognitive impairments. However, little is known concerning how these cognitive deficits impact their real world functioning. We developed a computerized real-life activity task, where participants are required to shop for a list of grocery store items. Twenty one individuals diagnosed with bipolar disorder and 21 matched healthy controls were administered the computerized shopping task. Moreover, the patient group was assessed with a battery of cognitive tests and clinical scales. Performance on the shopping task significantly differentiated patients and healthy controls for two variables: Total time to complete the shopping task and Mean time spent to consult the shopping list. Moreover, in the patient group, performance on these variables from the shopping task correlated significantly with cognitive functioning (i.e. processing speed, verbal episodic memory, planning, cognitive flexibility, and inhibition) and with clinical variables including duration of illness and real world functioning. Finally, variables from the shopping task were found to significantly explain 41% of real world functioning of patients diagnosed with bipolar disorder. These findings suggest that the shopping task provides a good indication of real world functioning and cognitive functioning of persons diagnosed with bipolar disorder. [less ▲]

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See detailProjet New World : Evaluation écologique du fonctionnement quotidien.
Laloyaux, Julien ULg

Conference (2012, June 25)

Objectif: Les études qui seront présentées visent la création et la validation de nouveaux outils informatisés d’évaluation des activités de la vie quotidienne. Cadre théorique : Les patients souffrant ... [more ▼]

Objectif: Les études qui seront présentées visent la création et la validation de nouveaux outils informatisés d’évaluation des activités de la vie quotidienne. Cadre théorique : Les patients souffrant d’une psychopathologie rencontrent souvent des difficultés dans la vie quotidienne. Cependant, les outils actuels d’évaluation du fonctionnement dans la vie quotidienne (e.g., questionnaires, observations ou simulations d’activités) présentent une série de limites qui rendent ces outils peu prédictifs et représentatifs du fonctionnement. Méthode : Nous avons créé deux tâches informatisées d’évaluation du fonctionnement dans la vie quotidienne : une tâche de courses dans un supermarché (shopping) et une tâche multitasking de préparation d’une réunion. Ces tâches ont été soumises à plusieurs populations cliniques (i.e., souffrant de schizophrénie, d’un trouble bipolaire ou d’une dépendance alcoolique) qui ont été comparées à des groupes contrôles appariés. Les patients ont également été évalués avec des mesures cognitives, cliniques, et du statut fonctionnel. Résultats : Les deux tâches informatisées différenciaient les groupes de patients des groupes contrôles sur plusieurs variables communes, ainsi que spécifiques à chaque population. Les performances aux tâches étaient également hautement corrélées avec le fonctionnement cognitif, des variables cliniques et le statut fonctionnel. Enfin, les tâches ont également montré de bonnes capacités prédictives du statut fonctionnel. Conclusion : Les résultats des différentes études montrent que les tâches de shopping et de préparation d’une réunion peuvent être considérées comme de bons outils d’évaluation du niveau de fonctionnement quotidien pour différentes populations cliniques. Ces tâches pourraient également être utilisées dans un contexte de remédiation, tant pour des patients souffrant d’une psychopathologie que d’un trouble neurologique. [less ▲]

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See detailThe meeting preparation task: Validation of a new measure of everyday life functioning with persons diagnosed with schizophrenia.
Laloyaux, Julien ULg; Levaux, Marie-Noëlle ULg; Mourad, Haitham et al

Poster (2012, June 25)

Objective: The objective was to create a new measure of everyday life functioning by developing a computerized real-life activity task where participants are asked to prepare a room for a meeting ... [more ▼]

Objective: The objective was to create a new measure of everyday life functioning by developing a computerized real-life activity task where participants are asked to prepare a room for a meeting. Background: Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia. However, everyday life functioning is usually evaluated with questionnaires, performance-based or observation assessments, all of which contain a number of limits. Method: Twenty-one individuals diagnosed with schizophrenia and 21 matched healthy controls completed the computerized meeting preparation task. Patients were also evaluated with an extensive cognitive battery and several measures of symptomatology and everyday life functioning. Results: Results showed that performance on the computerized task significantly differentiated patients and controls for a certain number of variables. These variables, summarized in a global score, were significantly correlated with both cognitive and everyday life functioning. Moreover, this composite score significantly predicted 39% of everyday life functioning, whereas a cognitive composite score only predicted 22%. In addition, when the meeting task composite score was combined with symptomatology and the cognitive composite score, these measures significantly predicted up to 73% of everyday life functioning. Conclusion: The findings suggest that the meeting preparation task provides a good indication of the level of everyday life functioning in patients with schizophrenia, and may be viewed as a valuable instrument in both an evaluation and remediation context. [less ▲]

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See detailA new way of predicting everyday life functioning: Validation of a Computerized Meeting Preparation Task with persons diagnosed with schizophrenia
Laloyaux, Julien ULg; Levaux, Marie-Noëlle ULg; Mourad, Haitham et al

Poster (2012, May 11)

Deficits in everyday life functioning are a core feature of persons diagnosed with schizophrenia. However, functional outcome is usually evaluated with questionnaires and performance-based assessments ... [more ▼]

Deficits in everyday life functioning are a core feature of persons diagnosed with schizophrenia. However, functional outcome is usually evaluated with questionnaires and performance-based assessments, all of which contain a number of limits. We developed a computerized real-life activity task (meeting preparation task) where participants are required to prepare a meeting room. Twenty-one individuals diagnosed with schizophrenia and 21 matched healthy controls completed the task. Patients were also evaluated with a cognitive battery and measures of symptomatology and functional outcome. Results showed that performance on the computerized task significantly differentiated patients and controls for a certain number of variables. These variables, combined into a composite score, were significantly correlated with both cognitive functioning and functional outcome. Moreover, this composite score significantly predicted 39% of functional outcome, whereas a cognitive composite score did not reach significance. In addition, when the meeting task composite score was combined with symptomatology and the cognitive composite score, these measures significantly predicted 70% of functional outcome. These findings suggest that the meeting preparation task provides a valid and significant indication of the level of everyday life functioning in patients with schizophrenia, and may be viewed as a valuable instrument in both an evaluation and remediation context. [less ▲]

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See detailA new way of predicting everyday life functioning: Validation of a Computerized Meeting Preparation Task with persons diagnosed with schizophrenia.
Laloyaux, Julien ULg; Levaux, Marie-Noëlle ULg; Mourad, Haitham et al

in Abstract Book of the BAPS-SEPEX (2012)

Deficits in everyday life functioning are a core feature of persons diagnosed with schizophrenia. However, functional outcome is usually evaluated with questionnaires and performance-based assessments ... [more ▼]

Deficits in everyday life functioning are a core feature of persons diagnosed with schizophrenia. However, functional outcome is usually evaluated with questionnaires and performance-based assessments, all of which contain a number of limits. We developed a computerized real-life activity task (meeting preparation task) where participants are required to prepare a meeting room. Twenty-one individuals diagnosed with schizophrenia and 21 matched healthy controls completed the task. Patients were also evaluated with a cognitive battery and measures of symptomatology and functional outcome. Results showed that performance on the computerized task significantly differentiated patients and controls for a certain number of variables. These variables, combined into a composite score, were significantly correlated with both cognitive functioning and functional outcome. Moreover, this composite score significantly predicted 39% of functional outcome, whereas a cognitive composite score did not reach significance. In addition, when the meeting task composite score was combined with symptomatology and the cognitive composite score, these measures significantly predicted 70% of functional outcome. These findings suggest that the meeting preparation task provides a valid and significant indication of the level of everyday life functioning in patients with schizophrenia, and may be viewed as a valuable instrument in both an evaluation and remediation context. [less ▲]

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See detailPerformance on an everyday life activity in persons diagnosed with alcohol dependency compared to healthy controls: Relations between a computerized shopping task and cognitive and clinical variables.
Laloyaux, Julien ULg; Michel, Céline; Mourad, Haitham et al

in Alcohol & Alcoholism (2012), 47(3), 240-247

Aim: Persons diagnosed with alcohol dependency often suffer from cognitive impairments. Little is known, however, concerning how these cognitive deficits impact complex, everyday life activities. By this ... [more ▼]

Aim: Persons diagnosed with alcohol dependency often suffer from cognitive impairments. Little is known, however, concerning how these cognitive deficits impact complex, everyday life activities. By this experiment, we wished to contribute to a better characterization of the nature of everyday life difficulties in patients with alcohol dependency using a computerized shopping task. Methods: We developed a computerized real-life activity task (shopping task), where participants are required to shop for a list of 8 grocery store items. Twenty individuals diagnosed with alcohol dependency and 20 healthy controls were administered a battery of cognitive tests, clinical scales and the computerized shopping task. Results: Performance on the computerized shopping task significantly differentiated patients and healthy controls for several variables and in particular for Total time. Moreover, Total time to complete the task correlated significantly with several cognitive measures. In particular, poor performance on measures of processing speed, verbal episodic memory, cognitive flexibility and inhibition were significantly correlated with longer Total time. Finally, longer Total time was significantly correlated with poorer everyday life functioning and longer duration of illness. Conclusions: These findings suggest that the computerized task used in the present study is a good proxy measure of the level of everyday life and cognitive functioning of persons diagnosed with alcohol dependency. [less ▲]

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See detailNew World : Evaluation écologique de l'axe cognition-fonctionnement
Domken, Marc-André; Laloyaux, Julien ULg

Conference (2011, December 16)

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See detailRelations between a computerized shopping task and cognitive and clinical variables in patients diagnosed with bipolar disorder and alcohol dependency compared with healthy controls.
Laloyaux, Julien ULg; Michel, Céline; Pellegrini, Nadia et al

Poster (2011, May 27)

Persons diagnosed with bipolar disorder and alcohol dependency are frequently subject to poor everyday life functioning. However, previous studies have primarily used questionnaires or observational ... [more ▼]

Persons diagnosed with bipolar disorder and alcohol dependency are frequently subject to poor everyday life functioning. However, previous studies have primarily used questionnaires or observational methods to assess everyday life functioning, both of which contain a number of limits. In order to address some of these limits, we developed a computerised real-life activity task, in particular, a shopping task where participants are required to shop for a list of 8 grocery store items. Twenty individuals diagnosed with alcoholic dependence and 21 patients diagnosed with bipolar disorder were compared with 20 and 21 matched healthy controls, respectively. All participants completed the shopping task, and both clinical groups were evaluated with an extensive battery of neuropsychological tests and a measure of global functioning. Results showed that, for both clinical groups, performance on the computerised shopping task significantly differentiated patients and healthy controls for a number of variables, especially total time and mean time to consult the shopping list. Performances on shopping task variables, in both clinical groups, were also significantly correlated with neuropsychological tests measuring verbal episodic memory, processing speed and selective attention. Finally, performances on the computerised shopping task were significantly correlated with various clinical variables and with global functioning in both patient groups. These findings suggest that the computerised task used in the present study provides a valid indication of the level of everyday life functioning for these clinical populations, and therefore may be viewed as a valuable instrument in both an evaluation and remediation context. [less ▲]

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See detailRelations between a computerized shopping task and cognitive and clinical variables in patients diagnosed with bipolar disorder and alcohol dependency compared with healthy controls.
Laloyaux, Julien ULg; Michel, Céline; Pellegrini, Nadia et al

in Abstract book of the BAPS Annual Meeting 2011 (2011)

Persons diagnosed with bipolar disorder and alcohol dependency are frequently subject to poor everyday life functioning. However, previous studies have primarily used questionnaires or observational ... [more ▼]

Persons diagnosed with bipolar disorder and alcohol dependency are frequently subject to poor everyday life functioning. However, previous studies have primarily used questionnaires or observational methods to assess everyday life functioning, both of which contain a number of limits. In order to address some of these limits, we developed a computerised real-life activity task, in particular, a shopping task where participants are required to shop for a list of 8 grocery store items. Twenty individuals diagnosed with alcoholic dependence and 21 patients diagnosed with bipolar disorder were compared with 20 and 21 matched healthy controls, respectively. All participants completed the shopping task, and both clinical groups were evaluated with an extensive battery of neuropsychological tests and a measure of global functioning. Results showed that, for both clinical groups, performance on the computerised shopping task significantly differentiated patients and healthy controls for a number of variables, especially total time and mean time to consult the shopping list. Performances on shopping task variables, in both clinical groups, were also significantly correlated with neuropsychological tests measuring verbal episodic memory, processing speed and selective attention. Finally, performances on the computerised shopping task were significantly correlated with various clinical variables and with global functioning in both patient groups. These findings suggest that the computerised task used in the present study provides a valid indication of the level of everyday life functioning for these clinical populations, and therefore may be viewed as a valuable instrument in both an evaluation and remediation context. [less ▲]

Detailed reference viewed: 27 (5 ULg)