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Perceptual Coherence in Adults with Congenital and Acquired Hearing Losses

Perceptual Coherence in Adults with Congenital and Acquired Hearing Losses. Andrea Pittman, PhD Arizona State University. Supported by a grant from NIDCD (R03DC06573). Introduction. Children with hearing loss eventually become adults with hearing loss.

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Perceptual Coherence in Adults with Congenital and Acquired Hearing Losses

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  1. Perceptual Coherence in Adults with Congenital and Acquired Hearing Losses Andrea Pittman, PhD Arizona State University Supported by a grant from NIDCD (R03DC06573)

  2. Introduction Children with hearing loss eventually become adults with hearing loss. Does impaired auditory processing in childhood extend into adulthood?

  3. Perceptual Coherence

  4. Purpose • To examine perceptual coherence in adults with congenital hearing losses relative to adults with normal hearing and adults with acquired hearing losses.

  5. Subjects • 10 Normal hearing (mean age 25 years) • 10 Acquired hearing losses (mean age 64 years) • 10 Congenital hearing losses (mean age 34 years) Acquired Congenital

  6. Stimuli • Speech • 9 naturally produced words (sonorants) • Produced by a male, female and child.

  7. Paradigm • Yes/No • Yes trial • F2 in the word • No trial • F2 not in the word

  8. Results

  9. Subjects • Adults • Normal • Acquired • Congenital

  10. Paradigm • 5 3-tone Complexes • Amp. modulated (100Hz) • 50% duty cycle • Yes/No • Yes trial • F2 in complex • No trial • F2 not in complex

  11. Results • three-tone complex Speech Tone Complexes

  12. Conclusion • Perceptual coherence was not affected by acquired hearing loss. • Adults with congenital hearing losses demonstrated atypical perceptual coherence for speech. • Practical consequences of poor perceptual coherence are largely unknown. • Implications for research.

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