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Related Concept Videos

Autism Spectrum Disorder01:19

Autism Spectrum Disorder

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Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
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Related Experiment Video

Updated: Jan 10, 2026

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
09:13

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Published on: April 22, 2015

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Neurophysiological alterations during sensory processing in autism - a meta-analysis.

Anjuli Ghosh1, Natalia Nasarre-Nacenta2, Sarah Baumeister2,3,4

  • 1Department of Child and Adolescent Psychiatry and Psychotherapy, Medical Faculty Mannheim, Central Institute of Mental Health, Heidelberg University, Mannheim, J 5 · 68159, Germany. Anjuli.Ghosh@zi-mannheim.de.

European Child & Adolescent Psychiatry
|November 22, 2025
PubMed
Summary
This summary is machine-generated.

Autistic individuals show prolonged early brain signal latencies in sensory processing, particularly in P/M50 and N170 components. These neurophysiological differences in event-related potentials (ERPs) and fields (ERFs) may relate to sensory filtering and social perception challenges in autism.

Keywords:
AutismElectroencephalographyMagnetoencephalographyMeta-analysisNeurophysiologySensory processing

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Area of Science:

  • Neuroscience
  • Autism Spectrum Disorder Research
  • Sensory Processing Studies

Background:

  • Sensory processing alterations are common in autism, but their underlying neurophysiological mechanisms are not fully understood.
  • Early event-related potentials (ERPs) and event-related fields (ERFs) are sensitive measures of neural activity in response to sensory stimuli.

Purpose of the Study:

  • To meta-analyze differences in early ERP/ERF components between autistic and non-autistic individuals.
  • To identify neurophysiological alterations associated with sensory perception, communication, and social interaction variations in autism.

Main Methods:

  • A systematic literature search adhering to PRISMA guidelines was conducted for studies from January 1980 onwards.
  • Random-effects meta-analyses were performed on data from 145 studies involving 3778 autistic and 3484 non-autistic participants.
  • Moderator analyses explored factors like neurophysiological technique, sensory modality, age, sex, and language impairment.

Main Results:

  • Autistic individuals exhibited significantly longer latencies for P/M50, P/M100, N170, and P/M200 components.
  • P/M50 latency was most affected, particularly in individuals with language impairment.
  • N170 latency alterations were most prominent in autistic adolescents and adults. No significant amplitude differences were found, and substantial heterogeneity was observed.

Conclusions:

  • Prolonged P/M50 and N170 latencies suggest neurophysiological underpinnings for sensory filtering and social perception challenges in autism.
  • These specific component timings show potential as biomarkers for autism-related sensory processing differences.
  • Observed heterogeneity and modest effect sizes necessitate further research for clinical applications.