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Détail de l'auteur
Auteur Marc J. LANOVAZ |
Documents disponibles écrits par cet auteur (10)
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Brief Report: Machine Learning for Estimating Prognosis of Children with Autism Receiving Early Behavioral Intervention-A Proof of Concept / Isabelle PREFONTAINE in Journal of Autism and Developmental Disorders, 54-4 (April 2024)
[article]
Titre : Brief Report: Machine Learning for Estimating Prognosis of Children with Autism Receiving Early Behavioral Intervention-A Proof of Concept Type de document : Texte imprimé et/ou numérique Auteurs : Isabelle PREFONTAINE, Auteur ; Marc J. LANOVAZ, Auteur ; Mélina RIVARD, Auteur Article en page(s) : p.1605-1610 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Although early behavioral intervention is considered as empirically-supported for children with autism, estimating treatment prognosis is a challenge for practitioners. One potential solution is to use machine learning to guide the prediction of the response to intervention. Thus, our study compared five machine algorithms in estimating treatment prognosis on two outcomes (i.e., adaptive functioning and autistic symptoms) in children with autism receiving early behavioral intervention in a community setting. Each machine learning algorithm produced better predictions than random sampling on both outcomes. Those results indicate that machine learning is a promising approach to estimating prognosis in children with autism, but studies comparing these predictions with those produced by qualified practitioners remain necessary. En ligne : https://doi.org/10.1007/s10803-022-05641-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=526
in Journal of Autism and Developmental Disorders > 54-4 (April 2024) . - p.1605-1610[article] Brief Report: Machine Learning for Estimating Prognosis of Children with Autism Receiving Early Behavioral Intervention-A Proof of Concept [Texte imprimé et/ou numérique] / Isabelle PREFONTAINE, Auteur ; Marc J. LANOVAZ, Auteur ; Mélina RIVARD, Auteur . - p.1605-1610.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 54-4 (April 2024) . - p.1605-1610
Index. décimale : PER Périodiques Résumé : Although early behavioral intervention is considered as empirically-supported for children with autism, estimating treatment prognosis is a challenge for practitioners. One potential solution is to use machine learning to guide the prediction of the response to intervention. Thus, our study compared five machine algorithms in estimating treatment prognosis on two outcomes (i.e., adaptive functioning and autistic symptoms) in children with autism receiving early behavioral intervention in a community setting. Each machine learning algorithm produced better predictions than random sampling on both outcomes. Those results indicate that machine learning is a promising approach to estimating prognosis in children with autism, but studies comparing these predictions with those produced by qualified practitioners remain necessary. En ligne : https://doi.org/10.1007/s10803-022-05641-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=526 Changes in Autistic Symptoms and Adaptive Functioning of Children Receiving Early Behavioral Intervention in a Community Setting: A Latent Growth Curve Analysis / Isabelle PREFONTAINE in Journal of Autism and Developmental Disorders, 53-3 (March 2023)
[article]
Titre : Changes in Autistic Symptoms and Adaptive Functioning of Children Receiving Early Behavioral Intervention in a Community Setting: A Latent Growth Curve Analysis Type de document : Texte imprimé et/ou numérique Auteurs : Isabelle PREFONTAINE, Auteur ; Julien MORIZOT, Auteur ; Marc J. LANOVAZ, Auteur ; Mélina RIVARD, Auteur Article en page(s) : p.901-917 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Despite showing effects in well-controlled studies, the extent to which early intensive behavioral intervention (EBI) produces positive changes in community-based settings remains uncertain. Thus, our study examined changes in autistic symptoms and adaptive functioning in 233 children with autism receiving EBI in a community setting. The results revealed nonlinear changes in adaptive functioning characterized by significant improvements during the intervention and a small linear decrease in autistic symptoms from baseline to follow-up. The intensity of intervention, initial age, IQ and autistic symptoms were associated either with progress during the intervention or maintenance during the follow-up. The next step to extend this line of research involves collecting detailed data about intervention strategies and implementation fidelity to produce concrete recommendations for practitioners. En ligne : https://doi.org/10.1007/s10803-021-05373-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=500
in Journal of Autism and Developmental Disorders > 53-3 (March 2023) . - p.901-917[article] Changes in Autistic Symptoms and Adaptive Functioning of Children Receiving Early Behavioral Intervention in a Community Setting: A Latent Growth Curve Analysis [Texte imprimé et/ou numérique] / Isabelle PREFONTAINE, Auteur ; Julien MORIZOT, Auteur ; Marc J. LANOVAZ, Auteur ; Mélina RIVARD, Auteur . - p.901-917.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 53-3 (March 2023) . - p.901-917
Index. décimale : PER Périodiques Résumé : Despite showing effects in well-controlled studies, the extent to which early intensive behavioral intervention (EBI) produces positive changes in community-based settings remains uncertain. Thus, our study examined changes in autistic symptoms and adaptive functioning in 233 children with autism receiving EBI in a community setting. The results revealed nonlinear changes in adaptive functioning characterized by significant improvements during the intervention and a small linear decrease in autistic symptoms from baseline to follow-up. The intensity of intervention, initial age, IQ and autistic symptoms were associated either with progress during the intervention or maintenance during the follow-up. The next step to extend this line of research involves collecting detailed data about intervention strategies and implementation fidelity to produce concrete recommendations for practitioners. En ligne : https://doi.org/10.1007/s10803-021-05373-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=500 Effects of multiple interventions for reducing vocal stereotypy: Developing a sequential intervention model / Marc J. LANOVAZ in Research in Autism Spectrum Disorders, 8-5 (May 2014)
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Titre : Effects of multiple interventions for reducing vocal stereotypy: Developing a sequential intervention model Type de document : Texte imprimé et/ou numérique Auteurs : Marc J. LANOVAZ, Auteur ; John T. RAPP, Auteur ; Isabella MACIW, Auteur ; Émilie PREGENT-PELLETIER, Auteur ; Catherine DORION, Auteur ; Stéphanie FERGUSON, Auteur ; Sabine SAADE, Auteur Article en page(s) : p.529-545 Mots-clés : Differential reinforcement Intervention model Music Prompting Stereotypy Index. décimale : PER Périodiques Résumé : Despite the availability of several interventions designed to reduce engagement in vocal stereotypy, few studies have compared two or more interventions together. Consequently, practitioners have limited amount of data to make informed decisions on whether an intervention may be more suitable than another to begin treating vocal stereotypy. The purpose of the study was to address this limitation by examining the direct and collateral effects of multiple interventions in 12 individuals with autism and other developmental disabilities in order to guide the development of a sequential intervention model. Using single-case experimental designs, we conducted a series of four experiments which showed that (a) noncontingent music generally produced more desirable outcomes than differential reinforcement of alternative behavior, (b) differential reinforcement of other behavior reduced vocal stereotypy in two participants for whom noncontingent music had failed to do so, (c) the addition of simple prompting procedures may enhance the effects of the interventions, and (d) the effects of noncontingent music may persist during sessions with extended durations. Based on these results, we propose a sequential intervention model to facilitate the initial and subsequent selection of an intervention most likely to reduce vocal stereotypy while producing desired collateral outcomes. En ligne : http://dx.doi.org/10.1016/j.rasd.2014.01.009 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=229
in Research in Autism Spectrum Disorders > 8-5 (May 2014) . - p.529-545[article] Effects of multiple interventions for reducing vocal stereotypy: Developing a sequential intervention model [Texte imprimé et/ou numérique] / Marc J. LANOVAZ, Auteur ; John T. RAPP, Auteur ; Isabella MACIW, Auteur ; Émilie PREGENT-PELLETIER, Auteur ; Catherine DORION, Auteur ; Stéphanie FERGUSON, Auteur ; Sabine SAADE, Auteur . - p.529-545.
in Research in Autism Spectrum Disorders > 8-5 (May 2014) . - p.529-545
Mots-clés : Differential reinforcement Intervention model Music Prompting Stereotypy Index. décimale : PER Périodiques Résumé : Despite the availability of several interventions designed to reduce engagement in vocal stereotypy, few studies have compared two or more interventions together. Consequently, practitioners have limited amount of data to make informed decisions on whether an intervention may be more suitable than another to begin treating vocal stereotypy. The purpose of the study was to address this limitation by examining the direct and collateral effects of multiple interventions in 12 individuals with autism and other developmental disabilities in order to guide the development of a sequential intervention model. Using single-case experimental designs, we conducted a series of four experiments which showed that (a) noncontingent music generally produced more desirable outcomes than differential reinforcement of alternative behavior, (b) differential reinforcement of other behavior reduced vocal stereotypy in two participants for whom noncontingent music had failed to do so, (c) the addition of simple prompting procedures may enhance the effects of the interventions, and (d) the effects of noncontingent music may persist during sessions with extended durations. Based on these results, we propose a sequential intervention model to facilitate the initial and subsequent selection of an intervention most likely to reduce vocal stereotypy while producing desired collateral outcomes. En ligne : http://dx.doi.org/10.1016/j.rasd.2014.01.009 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=229 Effects of reducing stereotypy on other behaviors: A systematic review / Marc J. LANOVAZ in Research in Autism Spectrum Disorders, 7-10 (October 2013)
[article]
Titre : Effects of reducing stereotypy on other behaviors: A systematic review Type de document : Texte imprimé et/ou numérique Auteurs : Marc J. LANOVAZ, Auteur ; Kirsty M. ROBERTSON, Auteur ; Kara SOERONO, Auteur ; Nicholas WATKINS, Auteur Article en page(s) : p.1234-1243 Langues : Anglais (eng) Mots-clés : Autism Collateral behavior Developmental disabilities Intervention Literature review Stereotypy Index. décimale : PER Périodiques Résumé : Researchers have shown that high levels of stereotypy in individuals diagnosed with autism spectrum disorders were correlated with more significant impairments in social and adaptive functioning. Reducing stereotypy may thus potentially occasion an increase in appropriate social and adaptive behaviors. Hence, the purpose of this systematic review was to examine the effects of reducing stereotypy on engagement in other behaviors. Following a thorough literature search, we identified 60 studies that both reduced engagement in stereotypy and measured engagement in at least one other behavior. We divided the studies into six broad categories: noncontingent reinforcement, differential reinforcement, punishment-based interventions, multiple contingencies, physical exercise, and other antecedent-based interventions. The results of our analyses suggest that reducing stereotypy produces reallocation toward other behaviors, albeit not necessarily appropriate. As such, clinicians and researchers targeting stereotypy should plan to strengthen an appropriate alternative behavior while targeting all response forms of stereotypy for reduction. Moreover, our review suggests that measuring untargeted behaviors when implementing interventions designed to reduce stereotypy may be essential in clinical and research settings. En ligne : http://dx.doi.org/10.1016/j.rasd.2013.07.009 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=212
in Research in Autism Spectrum Disorders > 7-10 (October 2013) . - p.1234-1243[article] Effects of reducing stereotypy on other behaviors: A systematic review [Texte imprimé et/ou numérique] / Marc J. LANOVAZ, Auteur ; Kirsty M. ROBERTSON, Auteur ; Kara SOERONO, Auteur ; Nicholas WATKINS, Auteur . - p.1234-1243.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 7-10 (October 2013) . - p.1234-1243
Mots-clés : Autism Collateral behavior Developmental disabilities Intervention Literature review Stereotypy Index. décimale : PER Périodiques Résumé : Researchers have shown that high levels of stereotypy in individuals diagnosed with autism spectrum disorders were correlated with more significant impairments in social and adaptive functioning. Reducing stereotypy may thus potentially occasion an increase in appropriate social and adaptive behaviors. Hence, the purpose of this systematic review was to examine the effects of reducing stereotypy on engagement in other behaviors. Following a thorough literature search, we identified 60 studies that both reduced engagement in stereotypy and measured engagement in at least one other behavior. We divided the studies into six broad categories: noncontingent reinforcement, differential reinforcement, punishment-based interventions, multiple contingencies, physical exercise, and other antecedent-based interventions. The results of our analyses suggest that reducing stereotypy produces reallocation toward other behaviors, albeit not necessarily appropriate. As such, clinicians and researchers targeting stereotypy should plan to strengthen an appropriate alternative behavior while targeting all response forms of stereotypy for reduction. Moreover, our review suggests that measuring untargeted behaviors when implementing interventions designed to reduce stereotypy may be essential in clinical and research settings. En ligne : http://dx.doi.org/10.1016/j.rasd.2013.07.009 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=212 A person-centered perspective on differential efficacy of early behavioral intervention in children with autism: A latent profile analysis / Isabelle PREFONTAINE in Research in Autism Spectrum Disorders, 97 (September 2022)
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Titre : A person-centered perspective on differential efficacy of early behavioral intervention in children with autism: A latent profile analysis Type de document : Texte imprimé et/ou numérique Auteurs : Isabelle PREFONTAINE, Auteur ; Julien MORIZOT, Auteur ; Marc J. LANOVAZ, Auteur ; Mélina RIVARD, Auteur Article en page(s) : 102017 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders Differential response EIBI Heterogeneity Latent profile analysis Person-centered Index. décimale : PER Périodiques Résumé : Background Individuals with autism spectrum disorder (ASD) present heterogeneous symptom manifestations and responses to intervention. Despite being well-established, early intensive behavioral intervention (EIBI) has produced inconsistent responding across studies. Investigating individual differences and identifying more homogenous subgroups in samples may lead to a better understanding of symptom heterogeneity in ASD and response to EIBI. Method Adopting a person-centered perspective, we conducted latent profile analyses (LPA) to explore the presence of homogenous subgroups in our sample of 233 preschoolers with ASD receiving early behavioral intervention services. We investigated predictors of group membership using logistic multinomial regressions and outcomes of membership with the BCH approach available in Mplus. Results We found four latent profiles in our sample: a mild impairment profile, a severe impairment profile, and two intermediate profiles with combinations of mild to moderate autistic symptoms, adaptive functioning, and intellectual functioning. Only the annual family income predicted profile membership. All profiles made progress during the intervention period, with varying magnitudes of change. During the follow-up period, the moderate impairment and the severe impairment profiles showed stability or improvement in adaptive functioning, while the two mild impairment profiles showed a slight decrease. Conclusions Our study contributes to the literature by suggesting the presence of distinct profiles with differences in their response to EIBI. The profiles associated with better short-term outcomes were different than the profiles who maintain their gains more consistently over time. This finding may guide both practitioners and researchers assessing the effects of intervention. En ligne : https://doi.org/10.1016/j.rasd.2022.102017 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=486
in Research in Autism Spectrum Disorders > 97 (September 2022) . - 102017[article] A person-centered perspective on differential efficacy of early behavioral intervention in children with autism: A latent profile analysis [Texte imprimé et/ou numérique] / Isabelle PREFONTAINE, Auteur ; Julien MORIZOT, Auteur ; Marc J. LANOVAZ, Auteur ; Mélina RIVARD, Auteur . - 102017.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 97 (September 2022) . - 102017
Mots-clés : Autism spectrum disorders Differential response EIBI Heterogeneity Latent profile analysis Person-centered Index. décimale : PER Périodiques Résumé : Background Individuals with autism spectrum disorder (ASD) present heterogeneous symptom manifestations and responses to intervention. Despite being well-established, early intensive behavioral intervention (EIBI) has produced inconsistent responding across studies. Investigating individual differences and identifying more homogenous subgroups in samples may lead to a better understanding of symptom heterogeneity in ASD and response to EIBI. Method Adopting a person-centered perspective, we conducted latent profile analyses (LPA) to explore the presence of homogenous subgroups in our sample of 233 preschoolers with ASD receiving early behavioral intervention services. We investigated predictors of group membership using logistic multinomial regressions and outcomes of membership with the BCH approach available in Mplus. Results We found four latent profiles in our sample: a mild impairment profile, a severe impairment profile, and two intermediate profiles with combinations of mild to moderate autistic symptoms, adaptive functioning, and intellectual functioning. Only the annual family income predicted profile membership. All profiles made progress during the intervention period, with varying magnitudes of change. During the follow-up period, the moderate impairment and the severe impairment profiles showed stability or improvement in adaptive functioning, while the two mild impairment profiles showed a slight decrease. Conclusions Our study contributes to the literature by suggesting the presence of distinct profiles with differences in their response to EIBI. The profiles associated with better short-term outcomes were different than the profiles who maintain their gains more consistently over time. This finding may guide both practitioners and researchers assessing the effects of intervention. En ligne : https://doi.org/10.1016/j.rasd.2022.102017 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=486 Program evaluation of a community organization offering supported employment services for adults with autism / Valérie MARTIN in Research in Autism Spectrum Disorders, 82 (April 2021)
PermalinkLe programme Prevent-Teach-Reinforce: adaptations québécoises visant la diminution des comportements problématiques des enfants ayant un TSA en milieu familial et en contexte d’intervention comportementale précoce / Malena ARGUMEDES
PermalinkStereotypy / John T. RAPP
PermalinkUsing the Prevent-Teach-Reinforce model to reduce challenging behaviors in children with autism spectrum disorder in home settings: A feasibility study / Malena ARGUMEDES in Research in Autism Spectrum Disorders, 86 (August 2021)
PermalinkVocal stereotypy in children with autism: Structural characteristics, variability, and effects of auditory stimulation / Marc J. LANOVAZ in Research in Autism Spectrum Disorders, 5-3 (July-September 2011)
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