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Updated: Aug 8, 2026
Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities
Published on: January 29, 2014
The case for early identification of hearing loss in children. Auditory system development, experimental auditory
Y S Sininger1, K J Doyle, J K Moore
1Children's Auditory Research and Evaluation Center, University of California Davis Medical Center, USA.
Insights
Early detection and intervention for infant hearing loss are crucial. Prompt hearing aid use and therapies support optimal auditory brain development and language acquisition in infants.
Area of Science:
- Neuroscience
- Developmental Psychology
- Audiology
Background:
- Infants develop sophisticated language processing by 1 year of age through auditory experience.
- Neural connections in the auditory brain stem mature, connecting to the auditory cortex during infancy.
- Interruption of auditory input during early development can negatively impact the central auditory system.
Purpose of the Study:
- To highlight the critical role of early auditory experiences in infant neural development.
- To emphasize the consequences of undetected hearing loss on auditory system development.
- To advocate for early detection and intervention for infant hearing loss.
Main Methods:
- Review of neurodevelopmental evidence regarding auditory system maturation.
- Analysis of the impact of sensory deprivation on neural pathways.
- Examination of the benefits of early intervention strategies for hearing loss.
Main Results:
- Undetected hearing loss can delay diagnosis until 2 years of age without specialized testing.
- Early intervention, including amplification (hearing aids), significantly benefits speech and language development.
- Evidence strongly supports early intervention for maximizing communication and hearing abilities.
Conclusions:
- Early intervention is essential for optimal auditory and communication development in infants.
- Timely diagnosis and treatment of hearing loss are critical for preventing long-term deficits.
- The developing auditory system benefits significantly from consistent, appropriate auditory stimulation.
Abstract:
Human infants spend the first year of life learning about their environment through experience. Although it is not visible to observers, infants with hearing are learning to process speech and understand language and are quite linguistically sophisticated by 1 year of age. At this same time, the neurons in the auditory brain stem are maturing, and billions of major neural connections are being formed. During this time, the auditory brain stem and thalamus are just beginning to connect to the auditory cortex. When sensory input to the auditory nervous system is interrupted, especially during early development, the morphology and functional properties of neurons in the central auditory system can break down. In some instances, these deleterious effects of lack of sound input can be ameliorated by reintroduction of stimulation, but critical periods may exist for intervention. Hearing loss in newborn infants can go undetected until as late as 2 years of age without specialized testing. When hearing loss is detected in the newborn period, infants can benefit from amplification (hearing aids) and intervention to facilitate speech and language development. All evidence regarding neural development supports such early intervention for maximum development of communication ability and hearing in infants.
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