University of Leicester
Browse
Autism Research - 2023 - Howard.pdf (217.73 kB)

No evidence for high inflexible precision of prediction errors in autism during lexical processing.

Download (217.73 kB)
journal contribution
posted on 2023-08-11, 14:54 authored by Philippa L Howard, Ascensión Pagán
Research has shown that information processing differences associated with autism could impact on language and literacy development. This study tested an approach to autistic cognition that suggests learning occurs via prediction errors, and autistic people have very precise and inflexible predictions that result in more sensitivity to meaningless signal errors than non-autistic readers. We used this theoretical background to investigate whether differences in prediction coding influence how orthographic (Experiment 1) and semantic information (Experiment 2) is processed by autistic readers. Experiment 1 used a lexical decision task to test whether letter position information was processed less flexibly by autistic than non-autistic readers. Three types of letter strings: words, transposed letter and substituted letters nonwords were presented. Experiment 2 used a semantic relatedness task to test whether autistic readers processed words with high and low semantic diversity differently to non-autistic readers. Results showed similar transposed letter and semantic diversity effects for all readers; indicating that orthographic and semantic information are processed similarly by autistic and non-autistic readers; and therefore, differences in prediction coding were not evident for these lexical processing tasks.

History

Author affiliation

School of Psychology and Vision Sciences, University of Leicester

Version

  • VoR (Version of Record)

Published in

Autism research

Publisher

Wiley

issn

1939-3792

eissn

1939-3806

Copyright date

2023

Available date

2023-08-11

Spatial coverage

United States

Language

eng

Usage metrics

    University of Leicester Publications

    Categories

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC