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Détail de l'auteur
Auteur Roy S. HESSELS |
Documents disponibles écrits par cet auteur (2)
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Action prediction in 10-month-old infants at high and low familial risk for Autism Spectrum Disorder / Ricarda BRAUKMANN in Research in Autism Spectrum Disorders, 49 (May 2018)
[article]
Titre : Action prediction in 10-month-old infants at high and low familial risk for Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Ricarda BRAUKMANN, Auteur ; Emma K. WARD, Auteur ; Roy S. HESSELS, Auteur ; Harold BEKKERING, Auteur ; Jan K. BUITELAAR, Auteur ; Sabine HUNNIUS, Auteur Article en page(s) : p.34-46 Langues : Anglais (eng) Mots-clés : Eye tracking Infant Siblings ASD Action prediction Index. décimale : PER Périodiques Résumé : Background Several studies have reported action prediction difficulties in Autism Spectrum Disorder (ASD). Although action prediction develops in infancy, little is known about prediction abilities in infants at risk for ASD. Methods Using eye tracking, we measured action anticipations in 52 10-month-old infants at high and low familial risk for ASD. Infants were repeatedly presented with actions during which a familiar object (cup/phone) was either brought to a location usually associated with the object (cup-to-mouth/phone-to-ear; usual condition) or to an unusual location (cup-to-ear/phone-to-mouth; unusual condition). We assessed infants’ anticipations to the actual target location (i.e., the location where the object was actually brought; the mouth in cup-to-mouth/phone-to-mouth actions; the ear in cup-to-ear/phone-to-ear actions) and the alternative target location (the ear in cup-to-mouth/phone-to-mouth actions; the mouth in cup-to-ear/phone-to-ear actions). Results Anticipation frequencies were modulated by object knowledge across all infants: We found more frequent anticipations towards the alternative target location for unusual compared to usual actions. This effect was in particular present for mouth anticipations which were also overall more frequent than ear anticipations. Across usual and unusual actions, infants showed more frequent anticipations towards the actual target location, potentially representing a learning effect elicited by the repeated action presentation. Importantly, there were no differences between the low- and high-risk infants in predictive eye movements. Conclusion Whereas our results suggest that familial risk for ASD does not affect action prediction in infancy, future research needs to investigate whether differences are apparent in those high-risk infants who later receive a diagnosis. En ligne : https://doi.org/10.1016/j.rasd.2018.02.004 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=340
in Research in Autism Spectrum Disorders > 49 (May 2018) . - p.34-46[article] Action prediction in 10-month-old infants at high and low familial risk for Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Ricarda BRAUKMANN, Auteur ; Emma K. WARD, Auteur ; Roy S. HESSELS, Auteur ; Harold BEKKERING, Auteur ; Jan K. BUITELAAR, Auteur ; Sabine HUNNIUS, Auteur . - p.34-46.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 49 (May 2018) . - p.34-46
Mots-clés : Eye tracking Infant Siblings ASD Action prediction Index. décimale : PER Périodiques Résumé : Background Several studies have reported action prediction difficulties in Autism Spectrum Disorder (ASD). Although action prediction develops in infancy, little is known about prediction abilities in infants at risk for ASD. Methods Using eye tracking, we measured action anticipations in 52 10-month-old infants at high and low familial risk for ASD. Infants were repeatedly presented with actions during which a familiar object (cup/phone) was either brought to a location usually associated with the object (cup-to-mouth/phone-to-ear; usual condition) or to an unusual location (cup-to-ear/phone-to-mouth; unusual condition). We assessed infants’ anticipations to the actual target location (i.e., the location where the object was actually brought; the mouth in cup-to-mouth/phone-to-mouth actions; the ear in cup-to-ear/phone-to-ear actions) and the alternative target location (the ear in cup-to-mouth/phone-to-mouth actions; the mouth in cup-to-ear/phone-to-ear actions). Results Anticipation frequencies were modulated by object knowledge across all infants: We found more frequent anticipations towards the alternative target location for unusual compared to usual actions. This effect was in particular present for mouth anticipations which were also overall more frequent than ear anticipations. Across usual and unusual actions, infants showed more frequent anticipations towards the actual target location, potentially representing a learning effect elicited by the repeated action presentation. Importantly, there were no differences between the low- and high-risk infants in predictive eye movements. Conclusion Whereas our results suggest that familial risk for ASD does not affect action prediction in infancy, future research needs to investigate whether differences are apparent in those high-risk infants who later receive a diagnosis. En ligne : https://doi.org/10.1016/j.rasd.2018.02.004 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=340 Is There a Limit to the Superiority of Individuals with ASD in Visual Search? / Roy S. HESSELS in Journal of Autism and Developmental Disorders, 44-2 (February 2014)
[article]
Titre : Is There a Limit to the Superiority of Individuals with ASD in Visual Search? Type de document : Texte imprimé et/ou numérique Auteurs : Roy S. HESSELS, Auteur ; Ignace T. C. HOOGE, Auteur ; Tineke M. SNIJDERS, Auteur ; Chantal KEMNER, Auteur Article en page(s) : p.443-451 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Visual search Superiority Perceptual load Load theory Index. décimale : PER Périodiques Résumé : Superiority in visual search for individuals diagnosed with autism spectrum disorder (ASD) is a well-reported finding. We administered two visual search tasks to individuals with ASD and matched controls. One showed no difference between the groups, and one did show the expected superior performance for individuals with ASD. These results offer an explanation, formulated in terms of load theory. We suggest that there is a limit to the superiority in visual search for individuals with ASD, related to the perceptual load of the stimuli. When perceptual load becomes so high that no additional task-(ir)relevant information can be processed, performance will be based on single stimulus identification, in which no differences between individuals with ASD and controls have been demonstrated. En ligne : http://dx.doi.org/10.1007/s10803-013-1886-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=223
in Journal of Autism and Developmental Disorders > 44-2 (February 2014) . - p.443-451[article] Is There a Limit to the Superiority of Individuals with ASD in Visual Search? [Texte imprimé et/ou numérique] / Roy S. HESSELS, Auteur ; Ignace T. C. HOOGE, Auteur ; Tineke M. SNIJDERS, Auteur ; Chantal KEMNER, Auteur . - p.443-451.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 44-2 (February 2014) . - p.443-451
Mots-clés : Autism spectrum disorder Visual search Superiority Perceptual load Load theory Index. décimale : PER Périodiques Résumé : Superiority in visual search for individuals diagnosed with autism spectrum disorder (ASD) is a well-reported finding. We administered two visual search tasks to individuals with ASD and matched controls. One showed no difference between the groups, and one did show the expected superior performance for individuals with ASD. These results offer an explanation, formulated in terms of load theory. We suggest that there is a limit to the superiority in visual search for individuals with ASD, related to the perceptual load of the stimuli. When perceptual load becomes so high that no additional task-(ir)relevant information can be processed, performance will be based on single stimulus identification, in which no differences between individuals with ASD and controls have been demonstrated. En ligne : http://dx.doi.org/10.1007/s10803-013-1886-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=223