Universität zu Köln

Intaite, Monika, Georgescu, Alexandra L., Noreika, Valdas, von Saldern, Marie A. O., Vogeley, Kai and Falter-Wagner, Christine M. (2019). Adults with autism spectrum condition have atypical perception of ambiguous figures when bottom-up and top-down interactions are incongruous. Autism, 23 (5). S. 1133 - 1143. LONDON: SAGE PUBLICATIONS LTD. ISSN 1461-7005

Full text not available from this repository.

Abstract

We examined the perception of an ambiguous squares stimulus evoking bistable perception in a sample of 31 individuals with autistic spectrum condition and 22 matched typical adults. The perception of the ambiguous figure was manipulated by adaptation to unambiguous figures and/or by placing the ambiguous figure into a context of unambiguous figures. This resulted in four conditions testing the independent and combined (congruent and incongruent) manipulations of adaptation (bottom-up) and spatial context (top-down) effects. The strength of perception, as measured by perception of the first reported orientation of the ambiguous stimulus, was affected comparably between groups. Nevertheless, the strength of perception, as measured by perceptual durations, was affected differently between groups: the perceptual effect was strongest for the autistic spectrum condition group when combined bottom-up and top-down conditions were congruent. In contrast, the strength of the perceptual effect in response to the same condition in the typical adults group was comparable to the adaptation, but stronger than both the context and the incongruent combined bottom-up and top-down conditions. Furthermore, the context condition was stronger than the incongruent combined bottom-up and top-down conditions for the typical adults group. Thus, our findings support the view of stimulus-specific top-down modulation in autistic spectrum condition.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Intaite, Monika UNSPECIFIED UNSPECIFIED UNSPECIFIED Georgescu, Alexandra L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Noreika, Valdas UNSPECIFIED UNSPECIFIED UNSPECIFIED von Saldern, Marie A. O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vogeley, Kai UNSPECIFIED UNSPECIFIED UNSPECIFIED Falter-Wagner, Christine M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-136735
DOI:	10.1177/1362361318782221
Journal or Publication Title:	Autism
Volume:	23
Number:	5
Page Range:	S. 1133 - 1143
Date:	2019
Publisher:	SAGE PUBLICATIONS LTD
Place of Publication:	LONDON
ISSN:	1461-7005
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HIGH-FUNCTIONING AUTISM; ASPERGER-SYNDROME; VISUAL-PERCEPTION; REVERSIBLE-FIGURE; CHILDREN; QUOTIENT; PERFORMANCE; ADAPTATION; COHERENCE; TIME Multiple languages Psychology, Developmental Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13673