Atypical sensory processing in adolescents with an autism spectrum disorder and their non-affected siblings / Wouter DE LA MARCHE in Research in Autism Spectrum Disorders, 6-2 (April-June 2012)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 6-2 (April-June 2012) . - p.639-645 Titre : Atypical sensory processing in adolescents with an autism spectrum disorder and their non-affected siblings Type de document : Texte imprimé et/ou numérique Auteurs : Wouter DE LA MARCHE, Auteur ; Jean STEYAERT, Auteur ; Ilse L.J. NOENS, Auteur Année de publication : 2012 Article en page(s) : p.639-645 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Adolescents  Siblings  Sensory profile  Intermediate phenotype Index. décimale : PER Périodiques Résumé : Atypical sensory processing is common in autism spectrum disorders (ASD). Specific profiles have been proposed in different age groups, but no study has focused specifically on adolescents. Identifying traits of ASD that are shared by individuals with ASD and their non-affected family members can shed light on the genetic underpinnings of ASD. Eighty adolescents with ASD (64 boys, 16 girls), 56 non-affected adolescent siblings (21 boys, 35 girls) and 33 adolescent controls (18 boys, 15 girls) filled out the Adolescent/Adult Sensory Profile, a self-report questionnaire resulting in four sensory quadrants according to Dunn's model of sensory processing. Adolescents with ASD differed significantly from controls on the quadrants Sensation Seeking and Sensation Avoidance. On quadrant 2 (Sensation Seeking) siblings scored significantly lower than controls and significantly higher than ASD. These results confirm the presence of atypical sensory processing in adolescents with ASD. We argue that reduced Sensation Seeking might be a candidate for an intermediate phenotype. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.09.014 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=150 [article] Atypical sensory processing in adolescents with an autism spectrum disorder and their non-affected siblings [Texte imprimé et/ou numérique] / Wouter DE LA MARCHE, Auteur ; Jean STEYAERT, Auteur ; Ilse L.J. NOENS, Auteur . - 2012 . - p.639-645. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 6-2 (April-June 2012) . - p.639-645 Mots-clés : Autism spectrum disorder  Adolescents  Siblings  Sensory profile  Intermediate phenotype Index. décimale : PER Périodiques Résumé : Atypical sensory processing is common in autism spectrum disorders (ASD). Specific profiles have been proposed in different age groups, but no study has focused specifically on adolescents. Identifying traits of ASD that are shared by individuals with ASD and their non-affected family members can shed light on the genetic underpinnings of ASD. Eighty adolescents with ASD (64 boys, 16 girls), 56 non-affected adolescent siblings (21 boys, 35 girls) and 33 adolescent controls (18 boys, 15 girls) filled out the Adolescent/Adult Sensory Profile, a self-report questionnaire resulting in four sensory quadrants according to Dunn's model of sensory processing. Adolescents with ASD differed significantly from controls on the quadrants Sensation Seeking and Sensation Avoidance. On quadrant 2 (Sensation Seeking) siblings scored significantly lower than controls and significantly higher than ASD. These results confirm the presence of atypical sensory processing in adolescents with ASD. We argue that reduced Sensation Seeking might be a candidate for an intermediate phenotype. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.09.014 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=150

Autism Spectrum Disorders in Gender Dysphoric Children and Adolescents / Annelou L. C. DE VRIES in Journal of Autism and Developmental Disorders, 40-8 (August 2010)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 40-8 (August 2010) . - p.930-936 Titre : Autism Spectrum Disorders in Gender Dysphoric Children and Adolescents Type de document : Texte imprimé et/ou numérique Auteurs : Annelou L. C. DE VRIES, Auteur ; Ina A. VAN BERCKELAER-ONNES, Auteur ; Ilse L.J. NOENS, Auteur ; Peggy T. COHEN-KETTENIS, Auteur ; Theo A. DORELEIJERS, Auteur Année de publication : 2010 Article en page(s) : p.930-936 Note générale : Article Open Access Langues : Anglais (eng) Mots-clés : Autism-spectrum-disorder Gender-identity-disorder Co-occurrence Incidence Index. décimale : PER Périodiques Résumé : Only case reports have described the co-occurrence of gender identity disorder (GID) and autism spectrum disorders (ASD). This study examined this co-occurrence using a systematic approach. Children and adolescents (115 boys and 89 girls, mean age 10.8, SD = 3.58) referred to a gender identity clinic received a standardized assessment during which a GID diagnosis was made and ASD suspected cases were identified. The Dutch version of the Diagnostic Interview for Social and Communication Disorders (10th rev., DISCO-10) was administered to ascertain ASD classifications. The incidence of ASD in this sample of children and adolescents was 7.8% (n = 16). Clinicians should be aware of co-occurring ASD and GID and the challenges it generates in clinical management. En ligne : http://dx.doi.org/10.1007/s10803-010-0935-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=108 [article] Autism Spectrum Disorders in Gender Dysphoric Children and Adolescents [Texte imprimé et/ou numérique] / Annelou L. C. DE VRIES, Auteur ; Ina A. VAN BERCKELAER-ONNES, Auteur ; Ilse L.J. NOENS, Auteur ; Peggy T. COHEN-KETTENIS, Auteur ; Theo A. DORELEIJERS, Auteur . - 2010 . - p.930-936. Article Open Access Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 40-8 (August 2010) . - p.930-936 Mots-clés : Autism-spectrum-disorder Gender-identity-disorder Co-occurrence Incidence Index. décimale : PER Périodiques Résumé : Only case reports have described the co-occurrence of gender identity disorder (GID) and autism spectrum disorders (ASD). This study examined this co-occurrence using a systematic approach. Children and adolescents (115 boys and 89 girls, mean age 10.8, SD = 3.58) referred to a gender identity clinic received a standardized assessment during which a GID diagnosis was made and ASD suspected cases were identified. The Dutch version of the Diagnostic Interview for Social and Communication Disorders (10th rev., DISCO-10) was administered to ascertain ASD classifications. The incidence of ASD in this sample of children and adolescents was 7.8% (n = 16). Clinicians should be aware of co-occurring ASD and GID and the challenges it generates in clinical management. En ligne : http://dx.doi.org/10.1007/s10803-010-0935-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=108

Children with autism spectrum disorder spontaneously use scene knowledge to modulate visual object processing / Lien VAN EYLEN in Research in Autism Spectrum Disorders, 7-7 (July 2013)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 7-7 (July 2013) . - p.913-922 Titre : Children with autism spectrum disorder spontaneously use scene knowledge to modulate visual object processing Type de document : Texte imprimé et/ou numérique Auteurs : Lien VAN EYLEN, Auteur ; Peter DE GRAEF, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur ; Ilse L.J. NOENS, Auteur Article en page(s) : p.913-922 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Weak central coherence  Context effects  Scene perception  Eye-movements Index. décimale : PER Périodiques Résumé : Several studies have investigated contextual influences on visual object processing in individuals with autism spectrum disorder (ASD) and failed to find reduced context effects. However, these studies did not properly account for local inter-object effects and/or the influence of post-perceptual processes, leaving it unclear whether individuals with ASD display equally large global top-down effects of context, or whether they rely on a more local mechanism producing the same result. In this study, an eye-movement paradigm was used to investigate implicitly induced context effects on visual object processing in children with ASD compared to matched controls. To find out whether the context effects in the ASD group were, to the same extent, due to early top-down influences on object recognition, we also examined the interaction between context effects and the ease of object recognition. Both groups displayed equally large context effects and congruent contextual information facilitated object recognition to the same extent in both groups. This indicates that the context effects in the ASD group did not result from the operation of a more local, less top-down mechanism. These findings contradict predictions based on the weak central coherence account. However, a good alternative to explain all inconsistencies is currently lacking. En ligne : http://dx.doi.org/10.1016/j.rasd.2013.04.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=199 [article] Children with autism spectrum disorder spontaneously use scene knowledge to modulate visual object processing [Texte imprimé et/ou numérique] / Lien VAN EYLEN, Auteur ; Peter DE GRAEF, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur ; Ilse L.J. NOENS, Auteur . - p.913-922. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 7-7 (July 2013) . - p.913-922 Mots-clés : Autism spectrum disorders  Weak central coherence  Context effects  Scene perception  Eye-movements Index. décimale : PER Périodiques Résumé : Several studies have investigated contextual influences on visual object processing in individuals with autism spectrum disorder (ASD) and failed to find reduced context effects. However, these studies did not properly account for local inter-object effects and/or the influence of post-perceptual processes, leaving it unclear whether individuals with ASD display equally large global top-down effects of context, or whether they rely on a more local mechanism producing the same result. In this study, an eye-movement paradigm was used to investigate implicitly induced context effects on visual object processing in children with ASD compared to matched controls. To find out whether the context effects in the ASD group were, to the same extent, due to early top-down influences on object recognition, we also examined the interaction between context effects and the ease of object recognition. Both groups displayed equally large context effects and congruent contextual information facilitated object recognition to the same extent in both groups. This indicates that the context effects in the ASD group did not result from the operation of a more local, less top-down mechanism. These findings contradict predictions based on the weak central coherence account. However, a good alternative to explain all inconsistencies is currently lacking. En ligne : http://dx.doi.org/10.1016/j.rasd.2013.04.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=199

Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies? / Lien VAN EYLEN in Research in Autism Spectrum Disorders, 5-4 (October-December 2011)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1390-1401 Titre : Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies? Type de document : Texte imprimé et/ou numérique Auteurs : Lien VAN EYLEN, Auteur ; Bart BOETS, Auteur ; Jean STEYAERT, Auteur ; Kris EVERS, Auteur ; Johan WAGEMANS, Auteur ; Ilse L.J. NOENS, Auteur Année de publication : 2011 Article en page(s) : p.1390-1401 Langues : Anglais (eng) Mots-clés : Autism spectrum disorders  Cognitive flexibility  Task-switching  Wisconsin Card Sorting Task  Disengagement  Task instructions Index. décimale : PER Périodiques Résumé : The Wisconsin Card Sorting Task (WCST) is the only cognitive flexibility task that has consistently shown deficits in individuals with an autism spectrum disorder (ASD). As this is the only task characterized by limited explicit task instructions and a high degree of disengagement required to perform the switch, we hypothesized that cognitive flexibility deficits of individuals with ASD might only become apparent in situations fulfilling these requirements. However, the WCST involves various additional cognitive processes besides switching, making it uncertain whether difficulties are indeed due to cognitive flexibility impairments. The aim of this study was to investigate whether individuals with ASD show cognitive flexibility impairments on a more controlled task-switching variant of the WCST, still fulfilling both requirements. We therefore developed such a task and administered it to 40 high-functioning children with ASD and 40 age- and IQ- matched typically developing controls. As predicted, individuals with ASD made more perseveration errors and had a significantly higher switch cost than typically developing controls, but they performed equally well on the control measures. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.025 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=125 [article] Cognitive flexibility in autism spectrum disorder: Explaining the inconsistencies? [Texte imprimé et/ou numérique] / Lien VAN EYLEN, Auteur ; Bart BOETS, Auteur ; Jean STEYAERT, Auteur ; Kris EVERS, Auteur ; Johan WAGEMANS, Auteur ; Ilse L.J. NOENS, Auteur . - 2011 . - p.1390-1401. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1390-1401 Mots-clés : Autism spectrum disorders  Cognitive flexibility  Task-switching  Wisconsin Card Sorting Task  Disengagement  Task instructions Index. décimale : PER Périodiques Résumé : The Wisconsin Card Sorting Task (WCST) is the only cognitive flexibility task that has consistently shown deficits in individuals with an autism spectrum disorder (ASD). As this is the only task characterized by limited explicit task instructions and a high degree of disengagement required to perform the switch, we hypothesized that cognitive flexibility deficits of individuals with ASD might only become apparent in situations fulfilling these requirements. However, the WCST involves various additional cognitive processes besides switching, making it uncertain whether difficulties are indeed due to cognitive flexibility impairments. The aim of this study was to investigate whether individuals with ASD show cognitive flexibility impairments on a more controlled task-switching variant of the WCST, still fulfilling both requirements. We therefore developed such a task and administered it to 40 high-functioning children with ASD and 40 age- and IQ- matched typically developing controls. As predicted, individuals with ASD made more perseveration errors and had a significantly higher switch cost than typically developing controls, but they performed equally well on the control measures. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.025 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=125

Combining strengths and weaknesses in visual perception of children with an autism spectrum disorder: Perceptual matching of facial expressions / Kris EVERS in Research in Autism Spectrum Disorders, 5-4 (October-December 2011)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1327-1342 Titre : Combining strengths and weaknesses in visual perception of children with an autism spectrum disorder: Perceptual matching of facial expressions Type de document : Texte imprimé et/ou numérique Auteurs : Kris EVERS, Auteur ; Ilse L.J. NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur Année de publication : 2011 Article en page(s) : p.1327-1342 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder (ASD)  Matching  Facial emotional expressions  Compensation strategy  Weak central coherence  Enhanced perceptual functioning Index. décimale : PER Périodiques Résumé : Background Children with an autism spectrum disorder (ASD) are known to have an atypical visual perception, with deficits in automatic Gestalt formation and an enhanced processing of visual details. In addition, they are sometimes found to have difficulties in emotion processing. Methods In three experiments, we investigated whether 7-to-11-year old children with ASD were showing superiorities or deficits in matching tasks that required focusing on faces with an emotional expression. Throughout these experiments, we increased the complexity of the stimuli and tasks demands. Results and conclusions In matching faces with emotional expressions, children with ASD were not able to show superior processing of details in any of the three experiments. They were able to compensate their inferior processing of emotions in some of the experiments (e.g., by using a slower, more sequential processing style). However, when stimulus complexity (e.g., dynamic facial expressions) or task demands (e.g., extracting and remembering the relevant stimulus dimension) increased, they were no longer able to do so, and they did show performance deficits. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.004 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=125 [article] Combining strengths and weaknesses in visual perception of children with an autism spectrum disorder: Perceptual matching of facial expressions [Texte imprimé et/ou numérique] / Kris EVERS, Auteur ; Ilse L.J. NOENS, Auteur ; Jean STEYAERT, Auteur ; Johan WAGEMANS, Auteur . - 2011 . - p.1327-1342. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1327-1342 Mots-clés : Autism spectrum disorder (ASD)  Matching  Facial emotional expressions  Compensation strategy  Weak central coherence  Enhanced perceptual functioning Index. décimale : PER Périodiques Résumé : Background Children with an autism spectrum disorder (ASD) are known to have an atypical visual perception, with deficits in automatic Gestalt formation and an enhanced processing of visual details. In addition, they are sometimes found to have difficulties in emotion processing. Methods In three experiments, we investigated whether 7-to-11-year old children with ASD were showing superiorities or deficits in matching tasks that required focusing on faces with an emotional expression. Throughout these experiments, we increased the complexity of the stimuli and tasks demands. Results and conclusions In matching faces with emotional expressions, children with ASD were not able to show superior processing of details in any of the three experiments. They were able to compensate their inferior processing of emotions in some of the experiments (e.g., by using a slower, more sequential processing style). However, when stimulus complexity (e.g., dynamic facial expressions) or task demands (e.g., extracting and remembering the relevant stimulus dimension) increased, they were no longer able to do so, and they did show performance deficits. En ligne : http://dx.doi.org/10.1016/j.rasd.2011.01.004 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=125

ComVoor / Roger VERPOORTEN

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ComVoor 2 / Roger VERPOORTEN

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Corrigendum to “Parenting behaviour among parents of children with autism spectrum disorder” [Research in Autism Spectrum Disorders 5 (2011) 1143–1152] / Greet LAMBRECHTS in Research in Autism Spectrum Disorders, 6-1 (January-March 2012)  

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Evaluer la communication et intervenir / Roger VERPOORTEN

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Language in Low-Functioning Children with Autistic Disorder: Differences Between Receptive and Expressive Skills and Concurrent Predictors of Language / Jarymke MALJAARS in Journal of Autism and Developmental Disorders, 42-10 (October 2012)  

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Level of sense-making in children with autistic disorder and intellectual disability: Patterns of delay and deviance in development / Jarymke MALJAARS in Research in Autism Spectrum Disorders, 6-2 (April-June 2012)  

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Managing Complexity: Impact of Organization and Processing Style on Nonverbal Memory in Autism Spectrum Disorders / Katherine D. TSATSANIS in Journal of Autism and Developmental Disorders, 41-2 (February 2011)  

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Parenting behaviour among parents of children with autism spectrum disorder / Greet LAMBRECHTS in Research in Autism Spectrum Disorders, 5-3 (July-September 2011)  

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Quantitative autism traits in first degree relatives: evidence for the broader autism phenotype in fathers, but not in mothers and siblings / Wouter DE LA MARCHE in Autism, 16-3 (May 2012)  

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The central coherence account of autism revisited: Evidence from the ComFor study / Ilse L.J. NOENS in Research in Autism Spectrum Disorders, 2-2 (April-June 2008)  

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