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Related Experiment Video

Updated: May 12, 2026

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities
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Visual Cortical Processing in Children with Early Bilateral Cochlear Implants: A VEP Analysis.

Ola Badarni-Zahalka1, Ornella Dakwar-Kawar2, Cahtia Adelman3,4

  • 1Department of Communication, Sciences and Disorders, Haifa University, Haifa 3498838, Israel.

Children (Basel, Switzerland)
|March 28, 2025
PubMed
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Early bilateral cochlear implants (CIs) in children appear to preserve overall visual processing. However, subtle changes in left occipital visual function may impact speech perception, underscoring the importance of early intervention.

Area of Science:

  • Neuroscience
  • Audiology
  • Developmental Psychology

Background:

  • Cochlear implantation (CI) is crucial for severe-to-profound hearing loss, but outcomes vary.
  • Visual-auditory cross-modal reorganization is a known factor, yet its effect in early-implanted children is not fully understood.

Purpose of the Study:

  • Investigate visual processing in children with early bilateral CIs.
  • Examine the relationship between visual processing and auditory outcomes.

Main Methods:

  • Recorded visual evoked potentials (VEPs) in 25 early-implanted children and 28 controls.
  • Analyzed VEPs in occipital and right temporal regions.
  • Correlated VEP components with speech perception scores.

Main Results:

Keywords:
cochlear implantscross-modal plasticityearly interventionspeech perceptionvisual evoked potentials

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Last Updated: May 12, 2026

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities
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Published on: January 29, 2014

Simultaneous Recording of Electroretinography and Visual Evoked Potentials in Anesthetized Rats
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Published on: July 1, 2016

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  • No significant overall occipital VEP differences between groups.
  • CI users showed reduced P1 amplitudes and delayed N1 latencies at the left occipital electrode (O1).
  • O1 N1 latency negatively correlated with speech-in-noise performance in CI users.

Conclusions:

  • Early bilateral CI seems to maintain global visual processing, indicating limited maladaptive reorganization.
  • Subtle left occipital visual processing alterations may affect auditory outcomes.
  • Highlights the complexity of sensory integration and the value of early intervention.