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Project Summary People with sensorineural hearing loss experience difficulties understanding speech in noisy environments, and may have difficulty separating a target voice from among many talkers, and localizing sounds in space. All of these deficits may be attributed to the functional effects of damage to cochlear structures, which include a loss of auditory sensitivity, alterations in loudness perception, and impairments of spectral and temporal processing in the auditory system. In this program of research, behavioral psychoacoustic methodologies and electrophysiological methods are used to study the deficits associated with frequency and time analysis in the impaired cochlea, and the impact of those deficits on the clear understanding of speech and the ability to enjoy music. For the next grant period, the focus of this research will be the study of temporal processing of complex sounds by people with hearing loss. Included are studies of complex pitch produced by harmonic and inharmonic complexes and aperiodic rippled noises, and studies of the ability to perceive the fine structure and envelopes in temporal waveforms. In addition, experiments will include measurement of evoked responses to stimuli with various temporal characteristics. The studies have as their goal the evaluation of the representation of temporal information in the higher auditory centers within the brain, when the inputs to those centers come from an impaired peripheral auditory system. It is hoped that an understanding of the manner in which the temporal information is distorted or lost, as determined by these studies, will help in understanding the functional deficits experienced by hearing-impaired people in their everyday lives.
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DOI: 10.1097/aud.0b013e3181ec5c46
发表时间: 2011-02
期刊: Ear and hearing
影响因子: 3.7
作者: [Billings CJ, Bennett KO, Molis MR, Leek MR]
通讯作者: Leek MR
DOI: 10.1044/jslhr.4106.1294
发表时间: 1998-12
期刊: Journal of speech, language, and hearing research : JSLHR
影响因子: --
作者: [V. Summers;M. Leek]
通讯作者: V. Summers;M. Leek
DOI: 10.1121/1.4962666
发表时间: 2016
期刊: The Journal of the Acoustical Society of America
影响因子: --
作者: [Mertes,IanB, Leek,MarjorieR]
通讯作者: Leek,MarjorieR
Masking of tones and speech by Schroeder-phase harmonic complexes in normally hearing and hearing-impaired listeners.
施罗德相位谐波复合体对听力正常和听力受损的听众的音调和语音进行掩蔽。
DOI: 10.1016/s0378-5955(98)00030-6
发表时间: 1998
期刊: Hearing research
影响因子: 2.8
作者: [Summers,V, Leek,MR]
通讯作者: Leek,MR
24
    Hearing Loss and the Perception of Complex Sound
    Pre-Doctoral Summer Training Program in Auditory Research
    Pre-Doctoral Summer Training Program in Auditory Research
    Pre-Doctoral Summer Training Program in Auditory Research
    海外基金