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Identifying the perceptual factors that contribute to older listeners'''' dynamic pitch benefit for speech recognition in noise.

Award Number: R21DC017560
ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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Abstract The majority of older adults with hearing loss, which is as large as one tenth of the U.S. population, have significant difficulty understanding speech in noisy environments. The potential consequences that can stem from this speech-in-noise problem include increased social isolation, cognitive decline, and psychological disturbance. While current amplification technology has not solved the speech-in-noise problem, new interventions have the potential to improve speech recognition in noise by engaging and enhancing perceptual cues, such as dynamic pitch. Dynamic pitch, as defined by the variation of fundamental frequency, aids speech recognition in noise for older adults with hearing loss. The variability, however, is substantial across individuals. To achieve the ultimate goal of enhancing dynamic pitch and improve speech recognition in noise, it is critical to understand the variability in older individuals’ benefit from dynamic pitch cues. This proposal aims to identify the perceptual factors contributing to this variability in dynamic pitch benefit among older individuals with hearing loss. The first specific aim is to establish the contribution of spectral perception to the individual variability in dynamic pitch benefit among older individuals with hearing loss. Older individuals’ ability to perceive static and dynamic spectral cues will be measured. It is hypothesized that poor performance in one or both of these two tasks will significantly contribute to an older individual’ inability to benefit from dynamic pitch cues in noise. The second specific aim is to determine the role of dynamic pitch glimpsing ability in dynamic pitch benefit for speech recognition in noise among older individuals with hearing loss. Older individuals’ dynamic pitch glimpsing ability will be characterized using a novel metric that simulates pitch perception in continuous speech. The dynamic pitch glimpsing ability is anticipated to be a significant factor that influences individuals’ dynamic pitch benefit in fluctuating noise. Drawn upon auditory scene perception theory, the third specific aim is to identify the relationship between older individuals’ ability to use pitch cues for stream segregation and dynamic pitch benefit in speech maskers. It is hypothesized that individuals with poor stream segregation ability are less capable of utilizing dynamic pitch cues to separate target speech from masker and in turn, benefit less from dynamic pitch in speech recognition. Older individuals’ ability to use pitch cues for stream segregation will be measured with a multi-tone pattern segregation task. This measure will be used to predict individuals’ dynamic pitch benefit in speech maskers. Research outcomes will provide a better understanding of the perceptual factors that contribute to the highly variable benefit from dynamic pitch in older individuals with hearing loss. This information will serve as the foundation for the development of different pitch enhancement strategies that target specific sources of difficulty within individuals.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2024 ( Subtotal = -$3,538 )
2024	2021	TEMPLE UNIVERSITY-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION	1805 N BROAD ST	PHILADELPHIA	PA	19122	PHILADELPHIA	USA	Research Related to Deafness and Communication Disorders	000	4	12/8/2023	NON-COMPETING CONTINUATION	-$3,538
														Subtotal = -$3,538

Issue Date FY: 2021 ( Subtotal = $161,662 )
2021	2021	TEMPLE UNIVERSITY-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION	1801 N BROAD ST	PHILADELPHIA	PA	19122	PHILADELPHIA	USA	Research Related to Deafness and Communication Disorders	002	4	4/26/2021	NON-COMPETING CONTINUATION	$158,500
2021	2020	TEMPLE UNIVERSITY-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION	1801 N BROAD ST	PHILADELPHIA	PA	19122	PHILADELPHIA	USA	Research Related to Deafness and Communication Disorders	001	3	11/21/2020	CHANGE OF GRANTEE / TRAINING INSTITUTION / AWARDING INSTITUTION	$142,088
2021	2020	WESTERN MICHIGAN UNIVERSITY	1903 W MICHIGAN AVE	KALAMAZOO	MI	49008	KALAMAZOO	USA	Research Related to Deafness and Communication Disorders	000	2	11/14/2020	NON-COMPETING CONTINUATION	-$138,926
2021	2020	WESTERN MICHIGAN UNIVERSITY	1903 W MICHIGAN AVE	KALAMAZOO	MI	49008	KALAMAZOO	USA	Research Related to Deafness and Communication Disorders	003	2	6/22/2021	NON-COMPETING CONTINUATION	$0
														Subtotal = $161,662

Issue Date FY: 2020 ( Subtotal = $147,460 )
2020	2020	WESTERN MICHIGAN UNIVERSITY	1903 W MICHIGAN AVE	KALAMAZOO	MI	49008	KALAMAZOO	USA	Research Related to Deafness and Communication Disorders	000	2	4/12/2020	NON-COMPETING CONTINUATION	$147,460
														Subtotal = $147,460

Issue Date FY: 2019 ( Subtotal = $144,495 )
2019	2019	WESTERN MICHIGAN UNIVERSITY	1903 W MICHIGAN AVE	KALAMAZOO	MI	49008	KALAMAZOO	USA	Research Related to Deafness and Communication Disorders	001	1	12/19/2018	NEW	$0
2019	2019	WESTERN MICHIGAN UNIVERSITY	1903 W MICHIGAN AVE	KALAMAZOO	MI	49008	KALAMAZOO	USA	Research Related to Deafness and Communication Disorders	000	1	12/18/2018	NEW	$144,495
														Subtotal = $144,495

Grand Total All Awards = $450,079

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Identifying the perceptual factors that contribute to older listeners'''' dynamic pitch benefit for speech recognition in noise.

Award Number: R21DC017560

ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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