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April 15, 2026Developmental ScienceOpen Access

Theta Power at 10 Months of Age Predicts Developmental Change in Language in Infants With and Without an Elevated Likelihood for Autism

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Authors

EPEirini PapageorgopoulouJAJannath Begum AliGPGreg Pasco

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Overview

This prospective longitudinal study investigates the link between EEG theta power and language change in infants, suggesting implications for early intervention.

Key Points

  • This research examines how early theta power in the brain predicts language development over time in infants at varying likelihoods for autism.
  • Conducted a longitudinal study of infants with Elevated Likelihood (EL) and Typical Likelihood (TL) for autism.
  • Collected EEG power data at 10 months during natural viewing of videos.
  • Assessed language abilities using observer assessments at 10, 14, 24, and 36 months.
  • Analyzed the relationship between theta power and language development across groups.
  • Infants in the EL group showed slower language development compared to the TL group.
  • 10-month theta power predicted subsequent language ability changes, regardless of autism likelihood.
  • No significant relationship was found between theta power development and language scores over time.

Cite This Study

Papageorgopoulou et al. (2026) studied this question.

synapsesocial.com/papers/69df2b04e4eeef8a2a6b0070https://doi.org/10.1111/desc.70194
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