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Visual habituation in deaf and hearing infants
Claire Monroy1,2, Carissa Shafto3, Irina Castellanos1,2
1Department of Otolaryngology-Head and Neck Surgery, Ohio State University Wexner Medical Center, Columbus, Ohio, United States of America.
Plos One
|February 7, 2019
Summary
Infants with profound hearing loss showed differences in visual habituation before cochlear implants (CIs). This suggests early hearing loss may impact cognitive processing and attention in deaf infants.
Area of Science:
- Developmental Psychology
- Neuroscience
- Audiology
Background:
- Early sensory experiences are crucial for cognitive development.
- Atypical sensory input from birth can lead to cognitive differences.
- Hearing loss in infancy may affect general cognitive abilities.
Purpose of the Study:
- To compare visual habituation in infants with profound hearing loss and typically hearing infants.
- To assess cognitive function and attention maintenance in deaf infants before cochlear implantation.
- To investigate the relationship between visual habituation and language outcomes in deaf infants.
Main Methods:
- Assessed visual habituation (time to habituate, look-away rate) in deaf and hearing infants.
- Used standardized assessments for language outcomes in deaf infants.
- Compared habituation measures between groups.
Main Results:
- Deaf infants were slower to habituate to visual stimuli.
- Deaf infants exhibited a lower look-away rate compared to hearing infants.
- Habituation measures in deaf infants correlated with pre-CI language outcomes.
Conclusions:
- Visual habituation and look-away rates may reflect information processing efficiency.
- Deaf infants might require more time to process visual stimuli.
- Early hearing loss appears to influence general cognitive functioning in infants.
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