Dual-Task Walking Performance in Older Persons With Hearing Impairment: Implications for Interventions From a Preliminary Observational Study.

Objectives: Adults with "hearing loss" have an increased falls risks. There may be an association between hearing impairment and walking performance under dual-task (DT) and triple-task (TT) conditions. The aim of this study was to identify DT and TT effects on walking speed, step length, and cadence in adults with hearing impairment, previous falls, and physical limitations. Design: The observational study included 73 community-dwelling older people seeking audiology services. Data were collected on sociodemographic characteristics, previous falls, fear of falling, physical limitations, and walking performance under three task conditions. Differences between the task conditions (single task [ST], DT, and TT) and the hearing groups were analyzed with a two-way ANOVA with repeated measures. The influence of fall risks and limited physical functioning on walking under ST, DT, and TT conditions was analyzed with ANOVAs, with ST, DT, and TT performance as repeated measurement factor (i.e., walking speed, step length and Cadence x Previous falls, or short physical performance battery

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Stability of Auditory Steady State Responses Over Time.

Objectives: Auditory steady state responses (ASSRs) are used in clinical practice for objective hearing assessments. The response is called steady state because it is assumed to be stable over time, and because it is evoked by a stimulus with a certain periodicity, which will lead to discrete frequency components that are stable in amplitude and phase over time. However, the stimuli commonly used to evoke ASSRs are also known to be able to induce loudness adaptation behaviorally. Researchers and clinicians using ASSRs assume that the response remains stable over time. This study investigates (1) the stability of ASSR amplitudes over time, within one recording, and (2) whether loudness adaptation can be reflected in ASSRs. Design: ASSRs were measured from 14 normal-hearing participants. The ASSRs were evoked by the stimuli that caused the most loudness adaptation in a previous behavioral study, that is, mixed-modulated sinusoids with carrier frequencies of either 500 or 2000 Hz, a modulation frequency of 40 Hz, and a low sensation level of 30 dB SL. For each carrier frequency and participant, 40 repetitions of 92 sec recordings were made. Two types of analyses were used to investigate the ASSR amplitudes over time: with the more traditionally used Fast Fourier Transform and with a novel Kalman filtering approach. Robust correlations between the ASSR amplitudes and behavioral loudness adaptation ratings were also calculated. Results: Overall, ASSR amplitudes were stable. Over all individual recordings, the median change of the amplitudes over time was -0.0001 [mu]V/s. Based on group analysis, a significant but very weak decrease in amplitude over time was found, with the decrease in amplitude over time around -0.0002 [mu]V/s. Correlation coefficients between ASSR amplitudes and behavioral loudness adaptation ratings were significant but low to moderate, with r = 0.27 and r = 0.39 for the 500 and 2000 Hz carrier frequency, respectively. Conclusions: The decrease in amplitude of ASSRs over time (92 sec) is small. Consequently, it is safe to use ASSRs in clinical practice, and additional correction factors for objective hearing assessments are not needed. Because only small decreases in amplitudes were found, loudness adaptation is probably not reflected by the ASSRs. Copyright (C) 2017 Wolters Kluwer Health, Inc. All rights reserved.

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Dual-Task Walking Performance in Older Persons With Hearing Impairment: Implications for Interventions From a Preliminary Observational Study.

Objectives: Adults with "hearing loss" have an increased falls risks. There may be an association between hearing impairment and walking performance under dual-task (DT) and triple-task (TT) conditions. The aim of this study was to identify DT and TT effects on walking speed, step length, and cadence in adults with hearing impairment, previous falls, and physical limitations. Design: The observational study included 73 community-dwelling older people seeking audiology services. Data were collected on sociodemographic characteristics, previous falls, fear of falling, physical limitations, and walking performance under three task conditions. Differences between the task conditions (single task [ST], DT, and TT) and the hearing groups were analyzed with a two-way ANOVA with repeated measures. The influence of fall risks and limited physical functioning on walking under ST, DT, and TT conditions was analyzed with ANOVAs, with ST, DT, and TT performance as repeated measurement factor (i.e., walking speed, step length and Cadence x Previous falls, or short physical performance battery

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Stability of Auditory Steady State Responses Over Time.

Objectives: Auditory steady state responses (ASSRs) are used in clinical practice for objective hearing assessments. The response is called steady state because it is assumed to be stable over time, and because it is evoked by a stimulus with a certain periodicity, which will lead to discrete frequency components that are stable in amplitude and phase over time. However, the stimuli commonly used to evoke ASSRs are also known to be able to induce loudness adaptation behaviorally. Researchers and clinicians using ASSRs assume that the response remains stable over time. This study investigates (1) the stability of ASSR amplitudes over time, within one recording, and (2) whether loudness adaptation can be reflected in ASSRs. Design: ASSRs were measured from 14 normal-hearing participants. The ASSRs were evoked by the stimuli that caused the most loudness adaptation in a previous behavioral study, that is, mixed-modulated sinusoids with carrier frequencies of either 500 or 2000 Hz, a modulation frequency of 40 Hz, and a low sensation level of 30 dB SL. For each carrier frequency and participant, 40 repetitions of 92 sec recordings were made. Two types of analyses were used to investigate the ASSR amplitudes over time: with the more traditionally used Fast Fourier Transform and with a novel Kalman filtering approach. Robust correlations between the ASSR amplitudes and behavioral loudness adaptation ratings were also calculated. Results: Overall, ASSR amplitudes were stable. Over all individual recordings, the median change of the amplitudes over time was -0.0001 [mu]V/s. Based on group analysis, a significant but very weak decrease in amplitude over time was found, with the decrease in amplitude over time around -0.0002 [mu]V/s. Correlation coefficients between ASSR amplitudes and behavioral loudness adaptation ratings were significant but low to moderate, with r = 0.27 and r = 0.39 for the 500 and 2000 Hz carrier frequency, respectively. Conclusions: The decrease in amplitude of ASSRs over time (92 sec) is small. Consequently, it is safe to use ASSRs in clinical practice, and additional correction factors for objective hearing assessments are not needed. Because only small decreases in amplitudes were found, loudness adaptation is probably not reflected by the ASSRs. Copyright (C) 2017 Wolters Kluwer Health, Inc. All rights reserved.

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Texas Department of Licensing and Regulation for Out-of-State Health-Care Providers Assisting with Disaster Response

In accordance with Section 418.016 of the Texas Government Code, Governor Greg Abbott has temporarily suspended all necessary statutes and rules to allow licensed health-care providers employed by a hospital and who are in good standing in another state to practice in Texas to assist with disaster response operations. 

This suspension is in effect until terminated by the Office of the Governor or until the Hurricane Harvey disaster declaration is lifted or expires.

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Auditory Training Schedules: What Is the Best Strategy?

Are the outcomes of an auditory training (AT) program better if the training is intensive and done close together in time (i.e., massed) or spread apart (i.e., spaced)? Tye-Murray et al (2017) attempted to answer this question.

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How to Enjoy a Holiday Weekend

With Labor Day right around the corner, many of us may be planning some much-needed time away from the office. Are you able to truly relax and leave work behind when you are on vacation? Not everyone is able to stop thinking about work when they are not in the office. If this sounds like you, you may want to check out Art Markman's Harvard Business Review article titled “How to Forget About Work When You're Not Working.”

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