UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

The effect of healthy aging on change detection and sensitivity to predictable structure in crowded acoustic scenes

De Kerangal, M; Vickers, D; Chait, M; (2020) The effect of healthy aging on change detection and sensitivity to predictable structure in crowded acoustic scenes. Hearing Research , Article 108074. 10.1016/j.heares.2020.108074. (In press). Green open access

[thumbnail of 1-s2.0-S0378595520303452-main.pdf]
Preview
Text
1-s2.0-S0378595520303452-main.pdf - Published Version

Download (3MB) | Preview

Abstract

The auditory system plays a critical role in supporting our ability to detect abrupt changes in our surroundings. Here we study how this capacity is affected in the course of healthy ageing. Artifical acoustic ‘scenes’, populated by multiple concurrent streams of pure tones (‘sources’) were used to capture the challenges of listening in complex acoustic environments. Two scene conditions were included: REG scenes consisted of sources characterized by a regular temporal structure. Matched RAND scenes contained sources which were temporally random. Changes, manifested as the abrupt disappearance of one of the sources, were introduced to a subset of the trials and participants (‘young’ group N = 41, age 20-38 years; ‘older’ group N = 41, age 60-82 years) were instructed to monitor the scenes for these events. Previous work demonstrated that young listeners exhibit better change detection performance in REG scenes, reflecting sensitivity to temporal structure. Here we sought to determine: (1) Whether ‘baseline’ change detection ability (i.e. in RAND scenes) is affected by age. (2) Whether aging affects listeners’ sensitivity to temporal regularity. (3) How change detection capacity relates to listeners’ hearing and cognitive profile (a battery of tests that capture hearing and cognitive abilities hypothesized to be affected by aging). The results demonstrated that healthy aging is associated with reduced sensitivity to abrupt scene changes in RAND scenes but that performance does not correlate with age or standard audiological measures such as pure tone audiometry or speech in noise performance. Remarkably older listeners’ change detection performance improved substantially (up to the level exhibited by young listeners) in REG relative to RAND scenes. This suggests that the ability to extract and track the regularity associated with scene sources, even in crowded acoustic environments, is relatively preserved in older listeners.

Type: Article
Title: The effect of healthy aging on change detection and sensitivity to predictable structure in crowded acoustic scenes
Location: Netherlands
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.heares.2020.108074
Publisher version: https://doi.org/10.1016/j.heares.2020.108074
Language: English
Additional information: Copyright © 2020 Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Ageing, Auditory scene analysis, Change deafness, Change detection, Predictive coding, Temporal regularity, Time perception
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > The Ear Institute
URI: https://discovery.ucl.ac.uk/id/eprint/10112754
Downloads since deposit
118Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item