Atypical Impact of Action Effect Delay on Motor Performance in Autism / Noam Karsh ; Marissa HARTSTON ; Bat-Sheva HADAD in Journal of Autism and Developmental Disorders, 55-2 (February 2025)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 55-2 (February 2025) . - p.499-509 Titre : Atypical Impact of Action Effect Delay on Motor Performance in Autism : Journal of Autism and Developmental Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Noam Karsh, Auteur ; Marissa HARTSTON, Auteur ; Bat-Sheva HADAD, Auteur Article en page(s) : p.499-509 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Atypical sensory perception and motor impairments are primary features of autism spectrum disorder (ASD) that indicate atypical development and predict social and non-social challenges. However, their link is poorly understood. Sensory perception is often integrated with motor processes when a sensory effect is temporally contiguous with the motor response. Such sensory-motor coupling further improves motor behavior. Previous studies indicate alterations in sensory perception of action-effect temporal contiguity in ASD, which bares the question of how it may impact motor performance. People diagnosed with ASD and typically developed (TD) participants performed a speeded reaction-time task previously established to capture the facilitating impact of action?s perceptual effect on motor response selection. The sensitivity of this mechanism to delays in the effect was measured, manipulating the action-effect temporal contiguity in a within-subject design. An immediate action effect (compared to a No-effect condition) facilitated response selection in the TD group. This facilitation effect was evident in the ASD group but did not show the typical sensitivity to the effect delay. While in the TD group, RT was shorter in the short (225ms) compared to the long (675ms) action effect delay condition, this distinguished pattern was absent in the ASD group. The findings provide supporting evidence that atypical motor performance in ASD results, at least in part, from an altered sensory perception of action effect temporal contiguity. We discuss the results in light of the reduced perceptual specialization account in ASD and its potential for undermining adaptive sensorimotor processes. En ligne : https://doi.org/10.1007/s10803-023-06227-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=548 [article] Atypical Impact of Action Effect Delay on Motor Performance in Autism : Journal of Autism and Developmental Disorders [Texte imprimé et/ou numérique] / Noam Karsh, Auteur ; Marissa HARTSTON, Auteur ; Bat-Sheva HADAD, Auteur . - p.499-509. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 55-2 (February 2025) . - p.499-509 Index. décimale : PER Périodiques Résumé : Atypical sensory perception and motor impairments are primary features of autism spectrum disorder (ASD) that indicate atypical development and predict social and non-social challenges. However, their link is poorly understood. Sensory perception is often integrated with motor processes when a sensory effect is temporally contiguous with the motor response. Such sensory-motor coupling further improves motor behavior. Previous studies indicate alterations in sensory perception of action-effect temporal contiguity in ASD, which bares the question of how it may impact motor performance. People diagnosed with ASD and typically developed (TD) participants performed a speeded reaction-time task previously established to capture the facilitating impact of action?s perceptual effect on motor response selection. The sensitivity of this mechanism to delays in the effect was measured, manipulating the action-effect temporal contiguity in a within-subject design. An immediate action effect (compared to a No-effect condition) facilitated response selection in the TD group. This facilitation effect was evident in the ASD group but did not show the typical sensitivity to the effect delay. While in the TD group, RT was shorter in the short (225ms) compared to the long (675ms) action effect delay condition, this distinguished pattern was absent in the ASD group. The findings provide supporting evidence that atypical motor performance in ASD results, at least in part, from an altered sensory perception of action effect temporal contiguity. We discuss the results in light of the reduced perceptual specialization account in ASD and its potential for undermining adaptive sensorimotor processes. En ligne : https://doi.org/10.1007/s10803-023-06227-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=548

Atypical perception in autism: A failure of perceptual specialization? / Bat-Sheva HADAD in Autism Research, 10-9 (September 2017)  

Public ISBD [article]  inAutism Research > 10-9 (September 2017) . - p.1510-1522 Titre : Atypical perception in autism: A failure of perceptual specialization? Type de document : Texte imprimé et/ou numérique Auteurs : Bat-Sheva HADAD, Auteur ; Eugenia K. GOLDSTEIN, Auteur ; Natalie N. RUSSO, Auteur Article en page(s) : p.1510-1522 Langues : Anglais (eng) Mots-clés : ASD  autism  perception  perceptual specialization  color perception  separable and integral perception  predictive coding Index. décimale : PER Périodiques Résumé : We examined whether reduced perceptual specialization underlies atypical perception in autism spectrum disorder (ASD) testing classifications of stimuli that differ either along integral dimensions (prototypical integral dimensions of value and chroma), or along separable dimensions (prototypical separable dimensions of value and size). Current models of the perception of individuals with an ASD would suggest that on these tasks, individuals with ASD would be as, or more, likely to process dimensions as separable, regardless of whether they represented separable or integrated dimensions. In contrast, reduced specialization would propose that individuals with ASD would respond in a more integral manner to stimuli that differ along separable dimensions, and at the same time, respond in a more separable manner to stimuli that differ along integral dimensions. A group of nineteen adults diagnosed with high functioning ASD and seventeen typically developing participants of similar age and IQ, were tested on speeded and restricted classifications tasks. Consistent with the reduced specialization account, results show that individuals with ASD do not always respond more analytically than typically developed (TD) observers: Dimensions identified as integral for TD individuals evoke less integral responding in individuals with ASD, while those identified as separable evoke less analytic responding. These results suggest that perceptual representations are more broadly tuned and more flexibly represented in ASD. En ligne : http://dx.doi.org/10.1002/aur.1800 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=320 [article] Atypical perception in autism: A failure of perceptual specialization? [Texte imprimé et/ou numérique] / Bat-Sheva HADAD, Auteur ; Eugenia K. GOLDSTEIN, Auteur ; Natalie N. RUSSO, Auteur . - p.1510-1522. Langues : Anglais (eng) in Autism Research > 10-9 (September 2017) . - p.1510-1522 Mots-clés : ASD  autism  perception  perceptual specialization  color perception  separable and integral perception  predictive coding Index. décimale : PER Périodiques Résumé : We examined whether reduced perceptual specialization underlies atypical perception in autism spectrum disorder (ASD) testing classifications of stimuli that differ either along integral dimensions (prototypical integral dimensions of value and chroma), or along separable dimensions (prototypical separable dimensions of value and size). Current models of the perception of individuals with an ASD would suggest that on these tasks, individuals with ASD would be as, or more, likely to process dimensions as separable, regardless of whether they represented separable or integrated dimensions. In contrast, reduced specialization would propose that individuals with ASD would respond in a more integral manner to stimuli that differ along separable dimensions, and at the same time, respond in a more separable manner to stimuli that differ along integral dimensions. A group of nineteen adults diagnosed with high functioning ASD and seventeen typically developing participants of similar age and IQ, were tested on speeded and restricted classifications tasks. Consistent with the reduced specialization account, results show that individuals with ASD do not always respond more analytically than typically developed (TD) observers: Dimensions identified as integral for TD individuals evoke less integral responding in individuals with ASD, while those identified as separable evoke less analytic responding. These results suggest that perceptual representations are more broadly tuned and more flexibly represented in ASD. En ligne : http://dx.doi.org/10.1002/aur.1800 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=320

Erratum to: Social Information Processing in Preschool Children Diagnosed with Autism Spectrum Disorder / Yair ZIV in Journal of Autism and Developmental Disorders, 44-4 (April 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-4 (April 2014) . - p.860-860 Titre : Erratum to: Social Information Processing in Preschool Children Diagnosed with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Yair ZIV, Auteur ; Bat-Sheva HADAD, Auteur ; Yasmine KHATEEB, Auteur ; Ruth TERKEL-DAWER, Auteur Année de publication : 2014 Article en page(s) : p.860-860 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1007/s10803-013-1998-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=228 [article] Erratum to: Social Information Processing in Preschool Children Diagnosed with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Yair ZIV, Auteur ; Bat-Sheva HADAD, Auteur ; Yasmine KHATEEB, Auteur ; Ruth TERKEL-DAWER, Auteur . - 2014 . - p.860-860. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-4 (April 2014) . - p.860-860 Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1007/s10803-013-1998-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=228

Fast updating of stimulus history reveals weak internal representations of faces in autism / Marissa HARTSTON in Autism Research, 17-11 (November 2024)  

Public ISBD [article]  inAutism Research > 17-11 (November 2024) . - p.2232-2243 Titre : Fast updating of stimulus history reveals weak internal representations of faces in autism Type de document : Texte imprimé et/ou numérique Auteurs : Marissa HARTSTON, Auteur ; Tal LULAV-BASH, Auteur ; Yael GOLDSTEIN-MARCUSOHN, Auteur ; Galia AVIDAN, Auteur ; Bat-Sheva HADAD, Auteur Article en page(s) : p.2232-2243 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder  serial dependance  Bayesian perception  contextual effects  face processing  other-race effects  regression to the mean Index. décimale : PER Périodiques Résumé : Abstract Atypical perception has been widely reported in autism spectrum disorders, and deficits in face recognition, specifically, are argued to be closely associated with social impairment experienced by these individuals. However, it is still debated (a) whether deficits are perceptually based, and (b) what the role is of experience-based refinements of perceptual face representations in autism. We investigated the effect of short- and long-term experienced stimulus history on face processing. Autistic and non-autistic individuals performed same-different judgments in a serial discrimination task where two consecutive faces were drawn from a distribution of morphed faces. Use of stimulus statistics was measured by testing the gravitation of face representations towards, the mean of a range of morphed faces around which they were sampled (regression-to-the-mean). The results show that unlike non-autistic individuals, representations of own- and other-race faces were equally biased by stimulus statistics in autistic individuals. Moreover, autistic individuals used the most recently exposed faces without forming a strong internal representation based on the overall experienced faces, indicating a weaker internal model of the ?typical? averaged face. This accumulated history of faces may underlie typical face specialization, and thus may account for the reduced specialization for own-race faces shown in autism. The results shed light on the way autistic people process and recognize faces, and on the basic mechanisms underlying atypical face perception. En ligne : https://doi.org/10.1002/aur.3236 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=542 [article] Fast updating of stimulus history reveals weak internal representations of faces in autism [Texte imprimé et/ou numérique] / Marissa HARTSTON, Auteur ; Tal LULAV-BASH, Auteur ; Yael GOLDSTEIN-MARCUSOHN, Auteur ; Galia AVIDAN, Auteur ; Bat-Sheva HADAD, Auteur . - p.2232-2243. Langues : Anglais (eng) in Autism Research > 17-11 (November 2024) . - p.2232-2243 Mots-clés : Autism Spectrum Disorder  serial dependance  Bayesian perception  contextual effects  face processing  other-race effects  regression to the mean Index. décimale : PER Périodiques Résumé : Abstract Atypical perception has been widely reported in autism spectrum disorders, and deficits in face recognition, specifically, are argued to be closely associated with social impairment experienced by these individuals. However, it is still debated (a) whether deficits are perceptually based, and (b) what the role is of experience-based refinements of perceptual face representations in autism. We investigated the effect of short- and long-term experienced stimulus history on face processing. Autistic and non-autistic individuals performed same-different judgments in a serial discrimination task where two consecutive faces were drawn from a distribution of morphed faces. Use of stimulus statistics was measured by testing the gravitation of face representations towards, the mean of a range of morphed faces around which they were sampled (regression-to-the-mean). The results show that unlike non-autistic individuals, representations of own- and other-race faces were equally biased by stimulus statistics in autistic individuals. Moreover, autistic individuals used the most recently exposed faces without forming a strong internal representation based on the overall experienced faces, indicating a weaker internal model of the ?typical? averaged face. This accumulated history of faces may underlie typical face specialization, and thus may account for the reduced specialization for own-race faces shown in autism. The results shed light on the way autistic people process and recognize faces, and on the basic mechanisms underlying atypical face perception. En ligne : https://doi.org/10.1002/aur.3236 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=542

Individuals with autism show non-adaptive relative weighting of perceptual prior and sensory reliability / Nahal BINUR in Autism, 26-8 (November 2022)  

Public ISBD [article]  inAutism > 26-8 (November 2022) . - p.2052-2065 Titre : Individuals with autism show non-adaptive relative weighting of perceptual prior and sensory reliability Type de document : Texte imprimé et/ou numérique Auteurs : Nahal BINUR, Auteur ; Hagit HEL-OR, Auteur ; Bat-Sheva HADAD, Auteur Article en page(s) : p.2052-2065 Langues : Anglais (eng) Mots-clés : Humans  Autistic Disorder  Autism Spectrum Disorder  Reproducibility of Results  Bayesian perception  autism spectrum disorder  inferred perception  perceptual illusions  width-height illusion Index. décimale : PER Périodiques Résumé : Unique perceptual skills and abnormalities in perception have been extensively demonstrated in those with autism for many perceptual domains, accounting, at least in part, for some of the main symptoms. Several new hypotheses suggest that perceptual representations in autism are unrefined, appear less constrained by exposure and regularities of the environment, and rely more on actual concrete input. Consistent with these emerging views, a bottom-up, data-driven fashion of processing has been suggested to account for the atypical perception in autism. It is yet unclear, however, whether reduced effects of prior knowledge and top-down information, or rather reduced noise in the sensory input, account for the often-reported bottom-up mode of processing in autism. We show that neither is sufficiently supported. Instead, we demonstrate clear differences between autistics and neurotypicals in how incoming input is weighted against prior knowledge and experience in determining the final percept. Importantly, the findings tap central differences in perception between those with and without autism that are consistent across identified sub-clusters within each group. En ligne : http://dx.doi.org/10.1177/13623613221074416 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=488 [article] Individuals with autism show non-adaptive relative weighting of perceptual prior and sensory reliability [Texte imprimé et/ou numérique] / Nahal BINUR, Auteur ; Hagit HEL-OR, Auteur ; Bat-Sheva HADAD, Auteur . - p.2052-2065. Langues : Anglais (eng) in Autism > 26-8 (November 2022) . - p.2052-2065 Mots-clés : Humans  Autistic Disorder  Autism Spectrum Disorder  Reproducibility of Results  Bayesian perception  autism spectrum disorder  inferred perception  perceptual illusions  width-height illusion Index. décimale : PER Périodiques Résumé : Unique perceptual skills and abnormalities in perception have been extensively demonstrated in those with autism for many perceptual domains, accounting, at least in part, for some of the main symptoms. Several new hypotheses suggest that perceptual representations in autism are unrefined, appear less constrained by exposure and regularities of the environment, and rely more on actual concrete input. Consistent with these emerging views, a bottom-up, data-driven fashion of processing has been suggested to account for the atypical perception in autism. It is yet unclear, however, whether reduced effects of prior knowledge and top-down information, or rather reduced noise in the sensory input, account for the often-reported bottom-up mode of processing in autism. We show that neither is sufficiently supported. Instead, we demonstrate clear differences between autistics and neurotypicals in how incoming input is weighted against prior knowledge and experience in determining the final percept. Importantly, the findings tap central differences in perception between those with and without autism that are consistent across identified sub-clusters within each group. En ligne : http://dx.doi.org/10.1177/13623613221074416 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=488

Intact Utilization of Contextual Information in Speech Categorization in Autism / Yafit GABAY in Journal of Autism and Developmental Disorders, 54-10 (October 2024)  

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Social Information Processing in Preschool Children Diagnosed with Autism Spectrum Disorder / Yair ZIV in Journal of Autism and Developmental Disorders, 44-4 (April 2014)  

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Strong Bias Towards Analytic Perception in ASD Does not Necessarily Come at the Price of Impaired Integration Skills / Bat-Sheva HADAD in Journal of Autism and Developmental Disorders, 45-6 (June 2015)  

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Weaker face recognition in adults with autism arises from perceptually based alterations / Marissa HARTSTON in Autism Research, 16-4 (April 2023)  

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