Superior haptic-to-visual shape matching in autism spectrum disorders
Identifieur interne : 000338 ( PascalFrancis/Corpus ); précédent : 000337; suivant : 000339Superior haptic-to-visual shape matching in autism spectrum disorders
Auteurs : Tamami Nakano ; Nobumasa Kato ; Shigeru KitazawaSource :
- Neuropsychologia [ 0028-3932 ] ; 2012.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
A weak central coherence theory in autism spectrum disorder (ASD) proposes that a cognitive bias toward local processing in ASD derives from a weakness in integrating local elements into a coherent whole. Using this theory, we hypothesized that shape perception through active touch, which requires sequential integration of sensorimotor traces of exploratory finger movements into a shape representation, would be impaired in ASD. Contrary to our expectation, adults with ASD showed superior performance in a haptic-to-visual delayed shape-matching task compared to adults without ASD. Accuracy in discriminating haptic lengths or haptic orientations, which lies within the somatosensory modality, did not differ between adults with ASD and adults without ASD. Moreover, this superior ability in inter-modal haptic-to-visual shape matching was not explained by the score in a unimodal visuospatial rotation task. These results suggest that individuals with ASD are not impaired in integrating sensorimotor traces into a global visual shape and that their multimodal shape representations and haptic-to-visual information transfer are more accurate than those of individuals without ASD.
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Format Inist (serveur)
NO : | PASCAL 12-0173215 INIST |
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ET : | Superior haptic-to-visual shape matching in autism spectrum disorders |
AU : | NAKANO (Tamami); KATO (Nobumasa); KITAZAWA (Shigeru) |
AF : | Graduate School of Frontiers Biosciences, Osaka University/Osaka/Japon (1 aut., 3 aut.); Department of Psychiatry. Showa University School of Medicine/Tokyo/Japon (2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Neuropsychologia; ISSN 0028-3932; Coden NUPSA6; Royaume-Uni; Da. 2012; Vol. 50; No. 5; Pp. 696-703; Bibl. 3/4 p. |
LA : | Anglais |
EA : | A weak central coherence theory in autism spectrum disorder (ASD) proposes that a cognitive bias toward local processing in ASD derives from a weakness in integrating local elements into a coherent whole. Using this theory, we hypothesized that shape perception through active touch, which requires sequential integration of sensorimotor traces of exploratory finger movements into a shape representation, would be impaired in ASD. Contrary to our expectation, adults with ASD showed superior performance in a haptic-to-visual delayed shape-matching task compared to adults without ASD. Accuracy in discriminating haptic lengths or haptic orientations, which lies within the somatosensory modality, did not differ between adults with ASD and adults without ASD. Moreover, this superior ability in inter-modal haptic-to-visual shape matching was not explained by the score in a unimodal visuospatial rotation task. These results suggest that individuals with ASD are not impaired in integrating sensorimotor traces into a global visual shape and that their multimodal shape representations and haptic-to-visual information transfer are more accurate than those of individuals without ASD. |
CC : | 002B18C14 |
FD : | Sensibilité tactile; Vision; Trouble envahissant du développement; Autisme; Forme stimulus; Perception intermodale; Etude expérimentale; Homme; Adulte |
FG : | Perception; Trouble du développement; Cognition |
ED : | Tactile sensitivity; Vision; Pervasive developmental disorder; Autism; Stimulus shape; Intermodal perception; Experimental study; Human; Adult |
EG : | Perception; Developmental disorder; Cognition |
SD : | Sensibilidad tactil; Visión; Disturbio invasor del desarrollo; Autismo; Forma estímulo; Percepción intermodal; Estudio experimental; Hombre; Adulto |
LO : | INIST-11143.354000509762330150 |
ID : | 12-0173215 |
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Pascal:12-0173215Le document en format XML
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<front><div type="abstract" xml:lang="en">A weak central coherence theory in autism spectrum disorder (ASD) proposes that a cognitive bias toward local processing in ASD derives from a weakness in integrating local elements into a coherent whole. Using this theory, we hypothesized that shape perception through active touch, which requires sequential integration of sensorimotor traces of exploratory finger movements into a shape representation, would be impaired in ASD. Contrary to our expectation, adults with ASD showed superior performance in a haptic-to-visual delayed shape-matching task compared to adults without ASD. Accuracy in discriminating haptic lengths or haptic orientations, which lies within the somatosensory modality, did not differ between adults with ASD and adults without ASD. Moreover, this superior ability in inter-modal haptic-to-visual shape matching was not explained by the score in a unimodal visuospatial rotation task. These results suggest that individuals with ASD are not impaired in integrating sensorimotor traces into a global visual shape and that their multimodal shape representations and haptic-to-visual information transfer are more accurate than those of individuals without ASD.</div>
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