Journal of Autism and Developmental Disorders

, Volume 39, Issue 10, pp 1449–1463

Sensory Impairments and Autism: A Re-Examination of Causal Modelling

Original Paper

DOI: 10.1007/s10803-009-0773-9

Cite this article as:
Gerrard, S. & Rugg, G. J Autism Dev Disord (2009) 39: 1449. doi:10.1007/s10803-009-0773-9

Abstract

Sensory impairments are widely reported in autism, but remain largely unexplained by existing models. This article examines Kanner’s causal reasoning and identifies unsupported assumptions implicit in later empirical work. Our analysis supports a heterogeneous causal model for autistic characteristics. We propose that the development of a standardised framework for analysing autistic characteristics would facilitate the identification of sub-groups and the location of biological markers for genetic variation. We also support a neuroconstructivist model proposing that peripheral sensory abnormalities disrupt compilation of complex skills; impact on synaptogenesis, synaptic pruning and myelination; and subsequently manifest themselves as autistic behaviours. This model explains some of the structural and functional brain abnormalities and many of the perceptual, cognitive and attentional features found in autism.

Keywords

Sensory impairments Autism Kanner Biological marker Compiled skills 

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Knowledge Modelling Group, School of Computing and MathematicsKeele UniversityKeele, StaffordshireUK