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Literature DB >> 16897381

Atypical categorical perception in autism: autonomy of discrimination?

Isabelle Soulières¹, Laurent Mottron, Daniel Saumier, Serge Larochelle.

Abstract

A diminished top-down influence has been proposed in autism, to account for enhanced performance in low-level perceptual tasks. Applied to perceptual categorization, this hypothesis predicts a diminished influence of category on discrimination. In order to test this hypothesis, we compared categorical perception in 16 individuals with and 16 individuals without high-functioning autism. While participants with and without autism displayed a typical classification curve, there was no facilitation of discrimination near the category boundary in the autism group. The absence of influence of categorical knowledge on discrimination suggests an increased autonomy of low-level perceptual processes in autism, in the form of a reduced top-down influence from categories toward discrimination.

Entities: Disease Species

Mesh：

Year: 2007 PMID： 16897381 DOI： 10.1007/s10803-006-0172-4

Source DB: PubMed Journal: J Autism Dev Disord ISSN： 0162-3257

38 in total

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Authors: R M Nosofsky; M K Johansen
Journal: Psychon Bull Rev Date: 2000-09

2. The discrimination of speech sounds within and across phoneme boundaries.

Authors: A M LIBERMAN; K S HARRIS; H S HOFFMAN; B C GRIFFITH
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3. Establishing visual category boundaries between objects: a PET study.

Authors: Daniel Saumier; Howard Chertkow; Martin Arguin; Christine Whatmough
Journal: Brain Cogn Date: 2005-12 Impact factor: 2.310

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Authors: J P Teunisse; B de Gelder
Journal: Child Neuropsychol Date: 2001-03 Impact factor: 2.500

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Authors: Anna Bonnel; Laurent Mottron; Isabelle Peretz; Manon Trudel; Erick Gallun; Anne-Marie Bonnel
Journal: J Cogn Neurosci Date: 2003-02-15 Impact factor: 3.225

6. The autism diagnostic observation schedule-generic: a standard measure of social and communication deficits associated with the spectrum of autism.

Authors: C Lord; S Risi; L Lambrecht; E H Cook; B L Leventhal; P C DiLavore; A Pickles; M Rutter
Journal: J Autism Dev Disord Date: 2000-06

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Authors: D M Bowler; N J Matthews; J M Gardiner
Journal: Neuropsychologia Date: 1997-01 Impact factor: 3.139

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Authors: Catherine J Molesworth; Dermot M Bowler; James A Hampton
Journal: J Child Psychol Psychiatry Date: 2005-06 Impact factor: 8.982

Review 9. Disruption in the inhibitory architecture of the cell minicolumn: implications for autism.

Authors: Manuel F Casanova; Daniel Buxhoeveden; Juan Gomez
Journal: Neuroscientist Date: 2003-12 Impact factor: 7.519

10. A neuropsychological theory of multiple systems in category learning.

Authors: F G Ashby; L A Alfonso-Reese; A U Turken; E M Waldron
Journal: Psychol Rev Date: 1998-07 Impact factor: 8.934

25 in total

1. Adults with Autism Tend to Underestimate the Hidden Environmental Structure: Evidence from a Visual Associative Learning Task.

Authors: Laurie-Anne Sapey-Triomphe; Sandrine Sonié; Marie-Anne Hénaff; Jérémie Mattout; Christina Schmitz
Journal: J Autism Dev Disord Date: 2018-09

Atypical categorical perception in autism: autonomy of discrimination?

1. Exemplar-based accounts of "multiple-system" phenomena in perceptual categorization.

2. The discrimination of speech sounds within and across phoneme boundaries.

3. Establishing visual category boundaries between objects: a PET study.

4. Impaired categorical perception of facial expressions in high-functioning adolescents with autism.

5. Enhanced pitch sensitivity in individuals with autism: a signal detection analysis.

6. The autism diagnostic observation schedule-generic: a standard measure of social and communication deficits associated with the spectrum of autism.

7. Asperger's syndrome and memory: similarity to autism but not amnesia.

8. The prototype effect in recognition memory: intact in autism?

Review 9. Disruption in the inhibitory architecture of the cell minicolumn: implications for autism.

10. A neuropsychological theory of multiple systems in category learning.

1. Adults with Autism Tend to Underestimate the Hidden Environmental Structure: Evidence from a Visual Associative Learning Task.

2. Is it a bird? Is it a plane? category use in problem-solving in children with autism spectrum disorders.

3. Impaired timing and frequency discrimination in high-functioning autism spectrum disorders.

Review 4. Enhanced perceptual functioning in autism: an update, and eight principles of autistic perception.

5. Perceptual compensation is correlated with individuals' "autistic" traits: implications for models of sound change.

6. Enhanced visual processing contributes to matrix reasoning in autism.

7. Color perception in children with autism.

8. Children with Autism Detect Targets at Very Rapid Presentation Rates with Similar Accuracy as Adults.

9. Categorical Speech Perception in Adults with Autism Spectrum Conditions.

10. Do Children with Autism Spectrum Disorder Benefit from Structural Alignment When Constructing Categories?