摘要Background:Research has shown that musicians outperform non-musicians in speech perception in noise(SPiN)tasks.However,it remains unclear whether the advantages of musical training are substantial enough to slow down the decline in SPiN performance associated with aging.Objectives:Therefore,we assessed SPiN performances in a continuum of age groups comprising musicians and non-musicians.The goal was to compare how the aging process affected SPiN performances of musicians and non-musicians.Method:A cross-sectional descriptive mixed design was used,involving 150 participants divided into 75 musicians and 75 non-musicians.Each age group(10-19,20-29,30-39,40-49,and 50-59)consisted of 15 musicians and 15 non-musicians.Six Kannada sentence lists were combined with four-talker babble.At+5,0,and-5 dB signal-to-noise ratios(SNRs),the percent correct Speech Identification Scores were calculated.Results:The repeated measure ANOVA(RM ANOVA)revealed significant main effects and interaction effects between SNR,musicianship,and age groups(p<0.05).A small to large effect size was noted(ηp2=0.05 to 0.17).A significant interaction effect and follow-up post hoc tests showed that SPiN abilities deteriorated more rapidly with increasing age in non-musicians compared to musicians,especially at difficult SNRs.Conclusions:Musicians had better SPiN abilities than non-musicians across all age groups.Also,age-related deterioration in SPiN abilities was faster in non-musicians compared to musicians.