• Changes in primitive auditory...

Treffer: Changes in primitive auditory memory in presbycusis and their impact on binaural auditory processing.

Title:
Changes in primitive auditory memory in presbycusis and their impact on binaural auditory processing.
Authors:
Ruan R; School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Zhejiang, China., Hong J; Department of Otolaryngology, Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Yuan F; Department of Otolaryngology, Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Mo Y; Department of Otolaryngology, Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Jiang L; School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Zhejiang, China., Liu Y; Department of Otolaryngology, Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China. Electronic address: liuyuhefeng@163.com.
Source:
Hearing research [Hear Res] 2025 Dec; Vol. 468, pp. 109451. Date of Electronic Publication: 2025 Oct 15.
Publication Type:
Journal Article
Language:
English
Journal Info:
Publisher: Elsevier/North-Holland Biomedical Press Country of Publication: Netherlands NLM ID: 7900445 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-5891 (Electronic) Linking ISSN: 03785955 NLM ISO Abbreviation: Hear Res Subsets: MEDLINE
Imprint Name(s):
Original Publication: Amsterdam, Elsevier/North-Holland Biomedical Press.
MeSH Terms:
Presbycusis*/physiopathology , Presbycusis*/psychology , Presbycusis*/diagnosis , Speech Perception* , Memory* , Sound Localization* , Aging*/psychology , Auditory Perception*, Humans ; Aged ; Female ; Male ; Middle Aged ; Young Adult ; Adult ; Age Factors ; Acoustic Stimulation ; Case-Control Studies ; Dichotic Listening Tests ; Aged, 80 and over ; Auditory Threshold ; Noise/adverse effects ; Speech Reception Threshold Test ; Perceptual Masking ; Audiometry, Pure-Tone
Contributed Indexing:
Keywords: Age; Binaural integration; Hearing loss; Primitive auditory memory; Time fine structure
Entry Date(s):
Date Created: 20251022 Date Completed: 20251205 Latest Revision: 20251205
Update Code:
20251206
DOI:
10.1016/j.heares.2025.109451
PMID:
41124844
Database:
MEDLINE

Weitere Informationen

Background: Presbycusis is common in ageing populations and often causes a significant decline in binaural auditory processing capabilities, disproportionate to peripheral hearing loss. Sound localisation and speech-in-noise segregation depend on processing temporal fine structure (TFS) information in reverberant environments. This requires transient storage and integration of TFS information, which is the primitive auditory memory (PAM) capacity. However, how presbycusis affects PAM remains unclear. Therefore, this study aimed to investigate how PAM is affected by age and hearing loss severity, and whether PAM explains declines in binaural processing abilities.
Methods: This study included 33 young adults with normal hearing, 45 older adults with normal hearing, and 118 older patients with varying degrees of presbycusis. All patients underwent a break-in-correlation test to assess the PAM capacity. Binaural auditory processing abilities were evaluated using the Speech Reception Threshold in Noise, Competing Sentence Test, and Dichotic Digit Listening test.
Results: PAM capacity declines in older adults, showing a significant correlation with low-frequency hearing loss. Even older adults with normal hearing exhibit age-related declines. Moreover, reduced PAM was associated with poor binaural processing. A PAM capacity <8 ms effectively identified processing deficits in older adults, indicating compromised temporal processing.
Conclusion: Age-related hearing loss influences early-stage binaural cue integration, which is closely associated with deterioration in binaural auditory processing. These findings advance our understanding of direct-to-reverberant sound integration and auditory processing mechanisms in complex acoustic environments.
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