Enhanced Discrimination of Novel, Highly Similar Stimuli by Adults with Autism During a Perceptual Learning Task / Kate C. PLAISTED in Journal of Child Psychology and Psychiatry, 39-5 (July 1998)

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 39-5 (July 1998) . - p.765-775 Titre : Enhanced Discrimination of Novel, Highly Similar Stimuli by Adults with Autism During a Perceptual Learning Task Type de document : Texte imprimé et/ou numérique Auteurs : Kate C. PLAISTED, Auteur ; Michelle O'RIORDAN, Auteur ; Simon BARON-COHEN, Auteur Année de publication : 1998 Article en page(s) : p.765-775 Langues : Anglais (eng) Mots-clés : Autism  attention  learning Index. décimale : PER Périodiques Résumé : High-functioning adults with autism and control adults were tested on a perceptual learning task that compared discrimination performance on familiar and novel stimuli. Control adults were better able to discriminate familiar than novel stimuli-the perceptual learning effect. No perceptual learning effect was observed in adults with autism although they discriminated the novel stimuli significantly better than control adults. This enhanced discrimination learning about novel, but not familiar, stimuli in autism is discussed in relation to two current hypotheses of information processing in autism-weak central coherence and reduced attention-switching-and a new third hypothesis, which suggests that features held in common between stimuli are processed poorly and features unique to a stimulus are processed well in autism. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=123 [article] Enhanced Discrimination of Novel, Highly Similar Stimuli by Adults with Autism During a Perceptual Learning Task [Texte imprimé et/ou numérique] / Kate C. PLAISTED, Auteur ; Michelle O'RIORDAN, Auteur ; Simon BARON-COHEN, Auteur . - 1998 . - p.765-775. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 39-5 (July 1998) . - p.765-775 Mots-clés : Autism  attention  learning Index. décimale : PER Périodiques Résumé : High-functioning adults with autism and control adults were tested on a perceptual learning task that compared discrimination performance on familiar and novel stimuli. Control adults were better able to discriminate familiar than novel stimuli-the perceptual learning effect. No perceptual learning effect was observed in adults with autism although they discriminated the novel stimuli significantly better than control adults. This enhanced discrimination learning about novel, but not familiar, stimuli in autism is discussed in relation to two current hypotheses of information processing in autism-weak central coherence and reduced attention-switching-and a new third hypothesis, which suggests that features held in common between stimuli are processed poorly and features unique to a stimulus are processed well in autism. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=123

Enhanced Visual Search for a Conjunctive Target in Autism: A Research Note / Kate C. PLAISTED in Journal of Child Psychology and Psychiatry, 39-5 (July 1998)

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 39-5 (July 1998) . - p.777-783 Titre : Enhanced Visual Search for a Conjunctive Target in Autism: A Research Note Type de document : Texte imprimé et/ou numérique Auteurs : Kate C. PLAISTED, Auteur ; Michelle O'RIORDAN, Auteur ; Simon BARON-COHEN, Auteur Année de publication : 1998 Article en page(s) : p.777-783 Langues : Anglais (eng) Mots-clés : Autism  attention  conjunctive search  feature search Index. décimale : PER Périodiques Résumé : Children with and without autism were compared on two visual search tasks in which a letter target appeared among two sets of letter distracters. In one task, the target shared colour with one set of distracters but was unique in shape-the feature search task. In the other, the conjunctive search task, the target shared colour with one set and shape with another set of distracters. Although search was slower in the conjunctive task than the feature task in normally developing control children, children with autism showed no significant slowing in reaction time in the conjunctive task and were faster than control children in this task. This result is discussed in the light of theories of visual search which state that rate of search is determined by the degree of similarity between target and distracters. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=123 [article] Enhanced Visual Search for a Conjunctive Target in Autism: A Research Note [Texte imprimé et/ou numérique] / Kate C. PLAISTED, Auteur ; Michelle O'RIORDAN, Auteur ; Simon BARON-COHEN, Auteur . - 1998 . - p.777-783. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 39-5 (July 1998) . - p.777-783 Mots-clés : Autism  attention  conjunctive search  feature search Index. décimale : PER Périodiques Résumé : Children with and without autism were compared on two visual search tasks in which a letter target appeared among two sets of letter distracters. In one task, the target shared colour with one set of distracters but was unique in shape-the feature search task. In the other, the conjunctive search task, the target shared colour with one set and shape with another set of distracters. Although search was slower in the conjunctive task than the feature task in normally developing control children, children with autism showed no significant slowing in reaction time in the conjunctive task and were faster than control children in this task. This result is discussed in the light of theories of visual search which state that rate of search is determined by the degree of similarity between target and distracters. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=123

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