Improving Acceptance of Background Noise with Sound Enrichment.

BACKGROUND: Acceptance of background noise serves as a means to predict likelihood of hearing aid success. Individuals that are able to accept background noise are more likely to be successful with hearing aids. PURPOSE: The aim of the study was to assess the impact of sound enrichment on the acceptable noise level (ANL). STUDY SAMPLE: Nineteen young adult participants served as listeners. Participants were randomly assigned to the experimental or control group. RESEARCH DESIGN: An experimental design with random assignment to experimental or control group was used. DATA COLLECTION AND ANALYSIS: One group used sound enrichment procedures for 2 weeks, whereas the other group served as a control group. Sound enrichment procedures required that participants add low-level background sound to any quiet environment encountered during the study. Most comfortable listening level (MCL) and background noise level (BNL) were measured at three sessions, each 1 week apart (baseline, after 1 week of treatment, and after 2 weeks of treatment). RESULTS: Analytical statistics revealed that ANL improved for the sound enrichment group but remained the same for the control group. For both groups, there was no significant change in MCL across sessions. However, for the experimental group, BNL improved (increased) over the 2-week period while using sound enrichment. CONCLUSIONS: Results of this study indicate that ANL can be improved with the use of sound enrichment procedures over a 2-week period. Future work should examine the use of sound enrichment procedures for older adults with hearing loss.

Context-dependent variability in blue whale acoustic behaviour.

Acoustic communication is an important aspect of reproductive, foraging and social behaviours for many marine species. Northeast Pacific blue whales (Balaenoptera musculus) produce three different call types-A, B and D calls. All may be produced as singular calls, but A and B calls also occur in phrases to form songs. To evaluate the behavioural context of singular call and phrase production in blue whales, the acoustic and dive profile data from tags deployed on individuals off southern California were assessed using generalized estimating equations. Only 22% of all deployments contained sounds attributed to the tagged animal. A larger proportion of tagged animals were female (47%) than male (13%), with 40% of unknown sex. Fifty per cent of tags deployed on males contained sounds attributed to the tagged whale, while only a few (5%) deployed on females did. Most calls were produced at shallow depths (less than 30 m). Repetitive phrasing (singing) and production of singular calls were most common during shallow, non-lunging dives, with the latter also common during surface behaviour. Higher sound production rates occurred during autumn than summer and they varied with time-of-day: singular call rates were higher at dawn and dusk, while phrase production rates were highest at dusk and night.

Peer-based models of supportive care: the impact of peer support groups in African American breast cancer survivors.

PURPOSE/OBJECTIVES: To examine the impact of support groups among African American breast cancer survivors (BCSs). RESEARCH APPROACH: A qualitative research study. SETTING: Community health and cancer centers and churches. PARTICIPANTS: 62 African American BCSs. METHODOLOGIC APPROACH: Focus groups were conducted with African American BCSs to share their experiences with peer-based support groups. A brief questionnaire was administered and assessed demographics, medical history, and support group impact. FINDINGS: Survivors emphasized that a culturally embedded focus was essential for their participation in a cancer support group. The survivors underscored that cultural-based groups are rooted in the spiritual, linguistic, experiential, and historical contexts of the intended constituents. The peer-based support groups provided multilevel functions, including emotional, social, spiritual, informational, and financial support, as well as patient navigation. The groups' activities fostered personal development and a call to community advocacy that included prevention education and research engagement. CONCLUSIONS: The unique strengths of grassroots community-based support groups are that they are culturally consonant, peer-based, and responsive to cancer-related and personal needs. The contribution and value of those multifaceted peer-based groups expand the paradigm of supportive care, extending the net of psychosocial care to underserved and underrepresented cancer survivors. INTERPRETATION: Research provides the critical foundation to lead and articulate the studies necessary to bridge peer- and professional-based care to ensure the psychosocial needs of increasingly diverse survivors are met.