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A study of auditory preferences in nonhandicapped infants and infants with Down's syndrome
Insights
Infants, including those with Down syndrome, can operate automated devices to select auditory stimuli. Both groups preferred female-sung nursery rhymes, with Down syndrome infants showing longer responses to complex sounds.
Area of Science:
- Developmental Psychology
- Auditory Perception
- Clinical Linguistics
Background:
- Infants' auditory preferences are crucial for early language acquisition.
- Understanding preferences in infants with Down syndrome can inform developmental support.
- Automated devices offer objective methods for assessing infant auditory discrimination.
Purpose of the Study:
- To investigate auditory preferences in infants with Down syndrome compared to non-handicapped infants.
- To assess the utility of an automated device for studying auditory perception in infants.
- To explore the impact of stimulus complexity on auditory responses in infants.
Main Methods:
- An automated device was used to allow infants to select between auditory stimuli.
- Eleven infants with Down syndrome and ten non-handicapped infants participated.
- Auditory stimuli included nursery rhymes sung by a female voice and instrumental music.
Main Results:
- All infants demonstrated preferential responding to auditory stimuli.
- Both groups showed a significant preference for sung nursery rhymes over instrumental music.
- Infants with Down syndrome exhibited longer response durations for more complex auditory stimuli.
Conclusions:
- The automated apparatus is a viable tool for studying auditory development in diverse infant populations.
- Infants with Down syndrome demonstrate distinct auditory response patterns.
- Findings highlight the importance of vocal stimuli in early auditory engagement for infants.
Abstract:
11 infants with Down's syndrome (MA 9.2 months, CA 12.7 months) and 10 of 11 nonhandicapped infants (MA 9.6 months, CA 9.3 months) demonstrated that they could operate an automated device which enabled them to choose to listen to 1 of a pair of auditory signals. All subjects showed preferential responding. Both groups of infants showed a significant preference for nursery rhymes sung by a female voice rather than played on musical instruments. The infants with Down's syndrome had much longer response durations for the more complex auditory stimuli. The apparatus provides a useful technique for studying language development in both normal and abnormal populations.