Current procedures for fitting hearing aids for children are inaccurate if unaided thresholds (whether behavioral or electrophysiologic) are unreliable, incomplete, or lack frequency specificity. This is a common occurrence with infants, young children, difficult-to-test patients, and patients with profound impairments. Unfortunately, assessments of speech detection and discrimination abilities with and without hearing aids are difficult to obtain in many infants and very young children. Electrophysiologic measures can provide an index of these patients' performance using amplification, which would be valuable for subsequent rehabilitative decisions and monitoring of auditory development and/or therapies. The cortical auditory event-related potentials (ERP), unlike the auditory brainstem response (ABR), reflect the higher level processing of acoustic stimuli, including complex stimuli such as speech sounds, and the brain processes underlying auditory discrimination capabilities. The cortical ERPs are therefore well-suited as probes of a hearing-impaired child's auditory capabilities as well of changes in this performance with use of hearing aids. The objectives of this project are to investigate the cortical auditory ERPs as electrophysiologic probes of stimulus audibility and discrimination in real and simulated hearing loss and with the use of prescribed hearing aids. In addition to investigating the potential clinical application of cortical ERPs, it is expected these studies of the N1-MMN-N2-P3 cortical auditory ERP sequence will provide insight concerning the underlying brain processes altered by hearing loss and amplification.

Project Start
Project End
Budget Start
Budget End
Support Year
12
Fiscal Year
1995
Total Cost
Indirect Cost
Name
Albert Einstein College of Medicine
Department
Type
DUNS #
009095365
City
Bronx
State
NY
Country
United States
Zip Code
10461
Schwartz, Richard G; Scheffler, Frances L V; Lopez, Karece (2013) Speech perception and lexical effects in specific language impairment. Clin Linguist Phon 27:339-54
Shafer, Valerie L; Schwartz, Richard G; Martin, Brett (2011) Evidence of deficient central speech processing in children with specific language impairment: the T-complex. Clin Neurophysiol 122:1137-55
Korczak, Peggy A; Stapells, David R (2010) Effects of various articulatory features of speech on cortical event-related potentials and behavioral measures of speech-sound processing. Ear Hear 31:491-504
Datta, Hia; Shafer, Valerie L; Morr, Mara L et al. (2010) Electrophysiological indices of discrimination of long-duration, phonetically similar vowels in children with typical and atypical language development. J Speech Lang Hear Res 53:757-77
Gravel, Judith S; Roberts, Joanne E; Roush, Jackson et al. (2006) Early otitis media with effusion, hearing loss, and auditory processes at school age. Ear Hear 27:353-68
Martin, Brett A; Stapells, David R (2005) Effects of low-pass noise masking on auditory event-related potentials to speech. Ear Hear 26:195-213
Oates, Peggy A; Kurtzberg, Diane; Stapells, David R (2002) Effects of sensorineural hearing loss on cortical event-related potential and behavioral measures of speech-sound processing. Ear Hear 23:399-415
Petinou, K C; Schwartz, R G; Gravel, J S et al. (2001) A preliminary account of phonological and morphophonological perception in young children with and without otitis media. Int J Lang Commun Disord 36:21-42
Gravel, J S; Wallace, I F (2000) Effects of otitis media with effusion on hearing in the first 3 years of life. J Speech Lang Hear Res 43:631-44
Gravel, J S; Wallace, I F (1998) Language, speech, and educational outcomes of otitis media. J Otolaryngol 27 Suppl 2:17-25

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