Final Exam 5 1. Discuss the changes in hearing that individuals experience during the aging process. a. Individuals experience changes in hearing during the aging process. It is estimated that 14% of Americans between the ages of 45 & 64 suffer from hearing loss, which often results from adult-onset hearing impairments. Although some conditions run in families and might be hereditary, most of these conditions are related to age. Age-related hearing conditions are known as presbycusis, meaning “old hearing.” When we age, inner-ear structures that transform mechanical sound waves into neural impulses deteriorate through natural cell death or reduced blood supply, which is caused by atherosclerosis. There are also declines in the processing of neural messages in the auditory cortex. Age-related cognitive changes, which include processing speed, attention, and memory, that we will take up shortly are also associated with hearing loss. The first sign happens around age 50. This sign is a noticeable decline in sensitivity to high-frequency sounds, which gradually extends to all frequencies. Late in life, human speech starts to become more difficult to make out, especially when it’s rapid speech and speech against a background of voices. Throughout middle adulthood, most people hear reasonably well across a wide frequency range. African tribal peoples display little age-related hearing loss. These findings suggest factors besides biological aging are involved. Hearing tends to decline earlier and more rapidly in men than it does in women. This difference is associated with cigarette smoking, intense noise & chemical pollutants in some male-dominated occupations, and (at older ages) high blood pressure & cerebrovascular disease, or strokes that damage brain tissue. Most people who have hearing difficulties may
benefit from sound amplification with hearing aids. In conclusion, there are changes in hearing during the aging process. 2. Explain parental imperative theory. What are its criticisms?
- Spring '16
- Arturo Vazquez
- Gerontology, AGING