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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)
[article]
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
in Research in Autism Spectrum Disorders > 5-4 (October-December 2011) . - p.1327-1342[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 Disrupted Stimulus Control But Not Reward Sensitivity in Individuals with Autism Spectrum Disorders: A Matching Law Analysis / Phil REED in Journal of Autism and Developmental Disorders, 42-11 (November 2012)
[article]
Titre : Disrupted Stimulus Control But Not Reward Sensitivity in Individuals with Autism Spectrum Disorders: A Matching Law Analysis Type de document : Texte imprimé et/ou numérique Auteurs : Phil REED, Auteur ; Rose HAWTHORN, Auteur ; Sam BOLGER, Auteur ; Katie MEREDITH, Auteur ; Ruth BISHOP, Auteur Article en page(s) : p.2393-2403 Langues : Anglais (eng) Mots-clés : Stimulus control Reward sensitivity Matching Index. décimale : PER Périodiques Résumé : The matching law suggests that behavior is emitted in proportion to the level of reinforcement available. The current study investigated this effect in individuals with autism spectrum disorders (ASD), and focused on the effects of magnitude of reinforcement (Study 1), and rate of reinforcement (Studies 2 and 3), on matching performance. Studies 1 and 2 employed lower functioning children with ASD, and demonstrated matching in both groups, but that the group with ASD displayed greater levels of stimulus bias. Study 3 employed higher functioning children with ASD, and found little evidence of matching, but higher stimulus bias in the group with ASD. These effects suggest a disruption of stimulus control, but not reward sensitivity, in individuals with ASD. En ligne : http://dx.doi.org/10.1007/s10803-012-1494-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=183
in Journal of Autism and Developmental Disorders > 42-11 (November 2012) . - p.2393-2403[article] Disrupted Stimulus Control But Not Reward Sensitivity in Individuals with Autism Spectrum Disorders: A Matching Law Analysis [Texte imprimé et/ou numérique] / Phil REED, Auteur ; Rose HAWTHORN, Auteur ; Sam BOLGER, Auteur ; Katie MEREDITH, Auteur ; Ruth BISHOP, Auteur . - p.2393-2403.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 42-11 (November 2012) . - p.2393-2403
Mots-clés : Stimulus control Reward sensitivity Matching Index. décimale : PER Périodiques Résumé : The matching law suggests that behavior is emitted in proportion to the level of reinforcement available. The current study investigated this effect in individuals with autism spectrum disorders (ASD), and focused on the effects of magnitude of reinforcement (Study 1), and rate of reinforcement (Studies 2 and 3), on matching performance. Studies 1 and 2 employed lower functioning children with ASD, and demonstrated matching in both groups, but that the group with ASD displayed greater levels of stimulus bias. Study 3 employed higher functioning children with ASD, and found little evidence of matching, but higher stimulus bias in the group with ASD. These effects suggest a disruption of stimulus control, but not reward sensitivity, in individuals with ASD. En ligne : http://dx.doi.org/10.1007/s10803-012-1494-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=183 Joint attention revisited: Finding strengths among children with autism / Sarah HURWITZ in Autism, 20-5 (July 2016)
[article]
Titre : Joint attention revisited: Finding strengths among children with autism Type de document : Texte imprimé et/ou numérique Auteurs : Sarah HURWITZ, Auteur ; Linda R. WATSON, Auteur Article en page(s) : p.538-550 Langues : Anglais (eng) Mots-clés : autism autism spectrum disorder joint attention language matching Index. décimale : PER Périodiques Résumé : Differences in joint attention are prominent for some children with autism and are often used as an indicator of the disorder. This study examined the joint attention competencies of young children with autism who demonstrated joint attention ability and compared them to children with developmental delays. A total of 40 children with autism and developmental delays were matched pairwise based on mental and chronological age. Videos of children engaging in play were coded for the frequency and forms (eye contact, gestures, affect, etc.) of joint attention. Additionally, concurrent language was compared among children with autism (N?=?32) by their joint attention ability. Children with autism spectrum disorder entered into joint attention significantly less often than children with developmental delays, but once engaged used the forms of joint attention similarly. For the matched pairs, there were no differences in language, but the children with autism who used joint attention had significantly better language than children with autism who did not (even after controlling for mental age). There is a group of young children with autism who can use joint attention but do so at lower frequencies than children with developmental delays. Possible reasons include difficulty disengaging attention and limited intrinsic social motivation to share. Adult persistence is recommended to encourage joint attention. En ligne : http://dx.doi.org/10.1177/1362361315593536 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=290
in Autism > 20-5 (July 2016) . - p.538-550[article] Joint attention revisited: Finding strengths among children with autism [Texte imprimé et/ou numérique] / Sarah HURWITZ, Auteur ; Linda R. WATSON, Auteur . - p.538-550.
Langues : Anglais (eng)
in Autism > 20-5 (July 2016) . - p.538-550
Mots-clés : autism autism spectrum disorder joint attention language matching Index. décimale : PER Périodiques Résumé : Differences in joint attention are prominent for some children with autism and are often used as an indicator of the disorder. This study examined the joint attention competencies of young children with autism who demonstrated joint attention ability and compared them to children with developmental delays. A total of 40 children with autism and developmental delays were matched pairwise based on mental and chronological age. Videos of children engaging in play were coded for the frequency and forms (eye contact, gestures, affect, etc.) of joint attention. Additionally, concurrent language was compared among children with autism (N?=?32) by their joint attention ability. Children with autism spectrum disorder entered into joint attention significantly less often than children with developmental delays, but once engaged used the forms of joint attention similarly. For the matched pairs, there were no differences in language, but the children with autism who used joint attention had significantly better language than children with autism who did not (even after controlling for mental age). There is a group of young children with autism who can use joint attention but do so at lower frequencies than children with developmental delays. Possible reasons include difficulty disengaging attention and limited intrinsic social motivation to share. Adult persistence is recommended to encourage joint attention. En ligne : http://dx.doi.org/10.1177/1362361315593536 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=290