Interactions between Cognition and Hearing Aid Compression Release Time: Effects of Linguistic Context of Speech Test Materials on Speech-in-Noise Performance

Shared experiences among successful hearing aid users with high hearing aid self-efficacy

OBJECTIVE

While targeted rehabilitation can enhance hearing aid self-efficacy (HASE), little research has been done to determine the factors contributing to its predictive value. By investigating the experiences of individuals who successfully use HAs and have high levels of HASE, we hoped to illuminate specific strategies and/or sources of support these individuals share that might explain why high HASE is often linked to successful outcomes.

DESIGN AND STUDY SAMPLE

This qualitative study explored the experiences of five older adults who were successful HA users and reported having high HASE. Semi-structured interview guides were developed using the transtheoretical model of behavioral change as a framework. Interviews were analyzed thematically and holistically.

RESULTS

Participants attributed their HA success to: intrinsic motivation to improve their hearing, confident self-reliance when making health decisions, willingness to act on advice from trusted others, pro-social personal attributes, positive expectations about HA outcomes, and actively pursuing an optimal HA outcome.

CONCLUSIONS

For these participants, internal factors related to emotional state and source of motivation, and, to a lesser extent, verbal persuasion played a crucial role in their long-term success. This suggests that external influencers might be less impactful in facilitating success for those with high HASE.

A review of auditory processing and cognitive change during normal ageing, and the implications for setting hearing aids for older adults

Throughout our adult lives there is a decline in peripheral hearing, auditory processing and elements of cognition that support listening ability. Audiometry provides no information about the status of auditory processing and cognition, and older adults often struggle with complex listening situations, such as speech in noise perception, even if their peripheral hearing appears normal. Hearing aids can address some aspects of peripheral hearing impairment and improve signal-to-noise ratios. However, they cannot directly enhance central processes and may introduce distortion to sound that might act to undermine listening ability. This review paper highlights the need to consider the distortion introduced by hearing aids, specifically when considering normally-ageing older adults. We focus on patients with age-related hearing loss because they represent the vast majority of the population attending audiology clinics. We believe that it is important to recognize that the combination of peripheral and central, auditory and cognitive decline make older adults some of the most complex patients seen in audiology services, so they should not be treated as "standard" despite the high prevalence of age-related hearing loss. We argue that a primary concern should be to avoid hearing aid settings that introduce distortion to speech envelope cues, which is not a new concept. The primary cause of distortion is the speed and range of change to hearing aid amplification (i.e., compression). We argue that slow-acting compression should be considered as a default for some users and that other advanced features should be reconsidered as they may also introduce distortion that some users may not be able to tolerate. We discuss how this can be incorporated into a pragmatic approach to hearing aid fitting that does not require increased loading on audiology services.