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Maturing Temporal Bones As Non-Neural Sites For Transforming The Speech Signal During Language Development, Lisa Hogan

Anthropology ETDs

Developmental events in the temporal bones shift the pattern of a given speech sounds acoustic profile through the time children are mapping linguistic sound systems. Before age 5 years, frequency information in vowels is differentially accessible through the years children are acquiring the sound systems of their native language(s). To model the acoustic effects caused by developing temporal bones, data collected to elicit steady-state vowels from adult native speakers of English and Diné were modified to reflect the form of children's hearing sensitivities at different ages based on patterns established in the psychoacoustic literature. It was assumed, based on the …