Abstract
Objective: Baseline electroencephalography (EEG) alpha power, i.e. that measured prior to stimulus presentation, is a potential objective predictor of task performance. Here we assessed the predictive power of EEG alpha on performance accuracy in a digits-in-noise recognition task, factoring in hearing thresholds and age. Design: EEG alpha power, recorded while participants listened to target digits presented in a noise background, was analysed during two different baseline periods: i) a pre-stimulus baseline (pre-STIM) free from any acoustic stimulus, and ii) a pre-target baseline (pre-TARG) recorded in background noise only. Study sample: Eighty-five participants with either normal hearing or aided hearing impairment (age range: 55–85 years old, 42 male). Results: Hierarchical multiple regression analyses indicated that i) lower hearing thresholds and, to a lesser extent, higher pre-STIM alpha power were associated with improved performance accuracy ii) alpha power in pre-STIM and pre-TARG were highly correlated across individuals but pre-TARG alpha power was not a significant predictor of performance accuracy. Conclusion: Investigations of baseline EEG alpha power as a predictor of speech-in-noise performance accuracy should control for associations between hearing thresholds and measures of EEG baseline periods.
Original language | English |
---|---|
Pages (from-to) | 197-204 |
Number of pages | 8 |
Journal | International Journal of Audiology |
Volume | 61 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Apr 2021 |
Keywords
- Behavioural measures
- EEG
- alpha power
- listening effort
- performance accuracy
- speech perception
- speech-in-noise
Fingerprint
Dive into the research topics of 'Associations between pre-stimulus alpha power, hearing level and performance in a digits-in-noise task'. Together they form a unique fingerprint.Projects
-
Manchester Centre for Audiology and Deafness (ManCAD)
Munro, K. (PI), Millman, R. (PI), Lamb, W. (Support team), Dawes, P. (PI), Plack, C. (PI), Stone, M. (PI), Kluk-De Kort, K. (PI), Moore, D. (PI), Morton, C. (PI), Prendergast, G. (PI), Couth, S. (PI), Schlittenlacher, J. (PI), Chilton, H. (PI), Visram, A. (Researcher), Dillon, H. (PI), Guest, H. (Researcher), Heinrich, A. (PI), Jackson, I. (Researcher), Littlejohn, J. (Researcher), Jones, L. (PI), Lough, M. (Researcher), Morgan, R. (Researcher), Perugia, E. (Researcher), Roughley, A. (Researcher), Whiston, H. (Researcher), Wright, C. (Support team), Saunders, G. (PI), Kelly, C. (PI), Cross, H. (Researcher), Loughran, M. (Researcher), Hoseinabadi, R. (PI) & Vercammen, C. (PI)
Project: Research