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The purpose of this study is to record voice samples of infant's mothers, process in samples to a phonetic musical piece, play the phonetic musical piece to 4-10 month old infants, and then test the infants in a conditioned head turning test in lab, and to analyze the results.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| lifestyle counseling | in the future parents will be advised to expose their infants to phonetic sounds in order to develop their phonetic categories in the future |
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| Measure | Description | Time Frame |
|---|---|---|
| Response by head-turning test to familiar and unfamiliar phonetic categories | one year |
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Inclusion Criteria:
Exclusion Criteria:
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normal newborn infants
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