Cited by 44Autism Spectrum Disorder ResearchDevelopmental and Educational NeuropsychologyChild Nutrition and Feeding Issues

Slower Processing Speed in Autism Spectrum Disorder: A Meta-analytic Investigation of Time-Based Tasks

Zapparrata, Nicole M., Brooks, Patricia J., Ober, Teresa M.·2023·Journal of Autism and Developmental Disorders

Abstract

Autism spectrum disorder (ASD) is a complex neurodevelopmental condition affecting information processing across domains. The current meta-analysis investigated whether slower processing speed is associated with the ASD neurocognitive profile and whether findings hold across different time-based tasks and stimuli (social vs. nonsocial; linguistic vs. nonlinguistic). Mean RTs of ASD and age-matched neurotypical comparison groups (N = 893 ASD, 1063 neurotypical; mean age ASD group = 17 years) were compared across simple RT, choice RT, and interference control tasks (44 studies, 106 effects) using robust variance estimation meta-analysis. Simple RT tasks required participants to respond to individual stimuli, whereas choice RT tasks required forced-choice responses to two or more stimuli. Interference control tasks required a decision in the context of a distractor or priming stimulus; in an effort to minimize inhibitory demands, we extracted RTs only from baseline and congruent conditions of such tasks. All tasks required nonverbal (motor) responses. The overall effect-size estimate indicated significantly longer mean RTs in ASD groups (g = .35, 95% CI = .16; .54) than comparison groups. Task type moderated effects, with larger estimates drawn from simple RT tasks than interference control tasks. However, across all three task types, ASD groups exhibited significantly longer mean RTs than comparison groups. Stimulus type and age did not moderate effects. Generalized slowing may be a domain-general characteristic of ASD with potential consequences for social, language, and motor development. Assessing processing speed may inform development of interventions to support autistic individuals and their diverse cognitive profiles.

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Authors
Zapparrata, N. M., Brooks, P. J., & Ober, T. M.
Affiliations
  • The Graduate Center, CUNY (US)
  • University of Notre Dame (US)
Corresponding author
Zapparrata, Nicole M.
Venue
Journal of Autism and Developmental Disorders
Published
2022-09-16
Volume
53
Issue
12
Pages
4618-4640
ISSN
  • 0162-3257 (ISSN-L)
  • 1573-3432
OpenAlex
W4296036590
Cited by
44
References
149
Citations by year
2026: 14 · 2025: 16 · 2024: 7 · 2023: 7
FWCI
1.05
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Autism and Developmental Disorders (publishedVersion)
  • PubMed (publishedVersion)
  • OSF Preprints (OSF Preprints) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Developmental and Educational Neuropsychology
  • Health Sciences › Medicine › Psychiatry and Mental health › Child Nutrition and Feeding Issues
Keywords
autism spectrum disorder, processing speed, reaction time (psychology), reaction time, interference control, choice reaction time, simple reaction time, neuropsychological profile
MeSH terms
Autism Spectrum Disorder, Processing Speed, Adolescent, Cognition, Humans, Language, Time

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