Musical Training and Its Association With Age-Related Changes in Binaural, Temporal, and Spatial Processing

Nisha, Kavassery Venkateswaran; Durai, Ranjini; Konadath, Sreeraj

doi:10.1044/2022_aja-21-00227

Cited by 5 publications

(1 citation statement)

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“…The use of the VAST paradigm is proven to be as effective as free-field spatial training using loudspeakers in fine-tuning spatial skills of NH listeners (Nisha and Kumar, 2022 ) and has promising implications on cortical re-organization (Nisha and Kumar, 2019a ). In addition, the use of virtual stimuli identical to those used in the VAST paradigm has been effective in documenting the effects of SNHI on cortical processing (Nisha and Kumar, 2019a , b ), the effects of maturational and aging-related changes across life-span (Nisha et al, 2023 ), and the musical training effects (Nisha et al, 2022 ). The present study aimed to validate the efficacy of the VAST paradigm in resolving spatial perception deficits in SNHI listeners.…”

Section: Introductionmentioning

confidence: 99%

Spatial rehabilitation using virtual auditory space training paradigm in individuals with sensorineural hearing impairment

Nisha

Uppunda²,

Kumar³

2023

Front. Neurosci.

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PurposeThe present study aimed to quantify the effects of spatial training using virtual sources on a battery of spatial acuity measures in listeners with sensorineural hearing impairment (SNHI).MethodsAn intervention-based time-series comparison design involving 82 participants divided into three groups was adopted. Group I (n = 27, SNHI-spatially trained) and group II (n = 25, SNHI-untrained) consisted of SNHI listeners, while group III (n = 30) had listeners with normal hearing (NH). The study was conducted in three phases. In the pre-training phase, all the participants underwent a comprehensive assessment of their spatial processing abilities using a battery of tests including spatial acuity in free-field and closed-field scenarios, tests for binaural processing abilities (interaural time threshold [ITD] and level difference threshold [ILD]), and subjective ratings. While spatial acuity in the free field was assessed using a loudspeaker-based localization test, the closed-field source identification test was performed using virtual stimuli delivered through headphones. The ITD and ILD thresholds were obtained using a MATLAB psychoacoustic toolbox, while the participant ratings on the spatial subsection of speech, spatial, and qualities questionnaire in Kannada were used for the subjective ratings. Group I listeners underwent virtual auditory spatial training (VAST), following pre-evaluation assessments. All tests were re-administered on the group I listeners halfway through training (mid-training evaluation phase) and after training completion (post-training evaluation phase), whereas group II underwent these tests without any training at the same time intervals.Results and discussionStatistical analysis showed the main effect of groups in all tests at the pre-training evaluation phase, with post hoc comparisons that revealed group equivalency in spatial performance of both SNHI groups (groups I and II). The effect of VAST in group I was evident on all the tests, with the localization test showing the highest predictive power for capturing VAST-related changes on Fischer discriminant analysis (FDA). In contrast, group II demonstrated no changes in spatial acuity across timelines of measurements. FDA revealed increased errors in the categorization of NH as SNHI-trained at post-training evaluation compared to pre-training evaluation, as the spatial performance of the latter improved with VAST in the post-training phase.ConclusionThe study demonstrated positive outcomes of spatial training using VAST in listeners with SNHI. The utility of this training program can be extended to other clinical population with spatial auditory processing deficits such as auditory neuropathy spectrum disorder, cochlear implants, central auditory processing disorders etc.

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Section: Introductionmentioning

confidence: 99%

Spatial rehabilitation using virtual auditory space training paradigm in individuals with sensorineural hearing impairment

Nisha

Uppunda²,

Kumar³

2023

Front. Neurosci.

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Differential advantages of musical backgrounds on binaural integration and interaction skills in instrumentalists, vocalists, and non-musicians

et al. 2023

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Effects of Maturation and Chronological Aging on Auditory Spatial Processing: A Cross-Sectional Study Across Life Span

Nisha¹,

Uppunda²,

Konadath³

2023

Am J Audiol

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Objective: The primary aim of the research was to document spatial acuity changes across the life span using a battery of psychoacoustical and perceptual tests. The secondary aim was to identify the optimal metric for measuring spatial processing changes across the life span (ages 10–70 years). Design and Study Sample: A cross-sectional study comprising 115 participants with clinically normal hearing was conducted. Purposive sampling was adopted to recruit participants in the study, who were divided into six groups based on their chronological age. Method: Temporal, intensity, spectral, and composite correlates of spatial acuity were assessed using psychoacoustic measures and perceptual questionnaires. The temporal (interaural time difference [ITD]) and intensity correlates (interaural level difference [ILD]) of spatial perception were obtained using a MATLAB (v 2020a), whereas the composite correlate (virtual auditory space identification scores [VASIs]) and perceptual ratings of spatial processing were measured using Paradigm software and speech spatial and qualities in Kannada (SSQ-K). Results: Results across all tests (multivariate analyses variance: 6 age groups × 4 tests, followed by post hoc tests) consistently demonstrate poor ITD and ILD thresholds and overall lower spatial accuracy (VASI, SSQ-K) with increasing age. Discriminant function analyses (DFAs) revealed that VASI had a higher predictive power in capturing age-related changes in auditory spatial processing. The group segregation on spatial performance in DFA became evident after 50 years. Conclusion: This study provides evidence of gradual change in all three correlates of spatial processing, with statistically demonstrable deficits appearing from fourth decade of life on VASI and fifth decade of life on binaural processing.

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Musical Training and Its Association With Age-Related Changes in Binaural, Temporal, and Spatial Processing

Cited by 5 publications

References 71 publications

Spatial rehabilitation using virtual auditory space training paradigm in individuals with sensorineural hearing impairment

Spatial rehabilitation using virtual auditory space training paradigm in individuals with sensorineural hearing impairment

Differential advantages of musical backgrounds on binaural integration and interaction skills in instrumentalists, vocalists, and non-musicians

Effects of Maturation and Chronological Aging on Auditory Spatial Processing: A Cross-Sectional Study Across Life Span

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