Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share By
Age-Related Changes in Auditory Temporal Processing Assessed Using Forward Masking Publisher Pubmed



Heidari P1 ; Mohammadkhani G1 ; Bayat A2 ; Rouhbakhsh N1 ; Moore BCJ3
Authors

Source: Hearing Research Published:2023


Abstract

One of the main complaints of older adults is difficulty understanding speech in noise. For older adults with audiometric thresholds within the normal range this difficulty may partly reflect deficits in temporal processing. The purpose of this study was to evaluate the effect of age on the rate of recovery from forward masking. There were seven young participants (four females; mean age 26 years) and seven older participants (six females; mean age 62 years) with normal audiometric thresholds, designated YNH and ONH groups. Signal frequencies of 500, 1000, 2000, and 4000 Hz were used. The level of the 20-ms signal was fixed at 15 dB SL for each participant and frequency. The 200-ms masker was a band of noise centered at the signal frequency with a bandwidth equal to the center frequency. The masker level was varied to determine the masker-to-signal ratio (MSR) required for threshold for masker-signal intervals (MSIs) of 5, 10, 20, 30, and 50 ms. The MSRs were smaller for the ONH group than for the YNH group, perhaps indicating lower processing efficiency for the former. Importantly, there was a significant interaction between MSI and the group. The change in MSR with increasing MSI was greater for the YNH than for the ONH group, indicating poorer temporal resolution for the latter. © 2022
Other Related Docs
5. Effect of Signal to Noise Ratio on the Speech Perception Ability of Older Adults, Medical Journal of the Islamic Republic of Iran (2016)
7. Auditory Processing Disorder in Elderly, Hearing# Balance and Communication (2022)
10. Speech Intelligibility Index: A Literature Review, Auditory and Vestibular Research (2022)
17. Human Frequency Following Response Correlates of Spatial Release From Masking, Journal of Speech# Language# and Hearing Research (2019)