Acoustic Measurements Through the Life Span: Jitter, Shimmer, and Standard Deviation of Fundamental Frequency.

Objective: To verify changes in acoustic parameters, namely jitter, shimmer, and standard deviation of the fundamental frequency (dp f), through the life span of vocally healthy Brazilian Portuguese speakers.

Method: In total, 526 voice recordings of subjects without complaints and without vocal disorders, aged between 5 and 93 years old, were included. The recordings were divided into 12 age groups (5 to 7, 8 to 9, 10 to 11, 12, 13 to 15, 16 to 18, 19 to 29, 30 to 39, 40 to 49, 50 to 59, 60 to 69, and 70 to 93 years old).

Changes in cortical auditory evoked potentials in response to auditory training in elderly hearing aid users: A pilot study.

Objective: To compare the cortical auditory evoked potential responses pre-and post-Auditory Musical Training associated with hearing aid adaptation in elderly people with presbycusis.

Design: This is a pilot, prospective, randomized, single-blind study.

Study Sample: Eight presbiacusis elderly people between 65 and 80 years, new hearing aid users, divided into two groups participated in the study: Hearing Aid Group: use of hearing aid; and Auditory Training Group: use of hearing aid in addition to musical auditory training for 16 sessions.