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In late adulthood, the brain may no longer function at optimal levels. This decline can lead to cognitive problems such as memory loss, and in some cases, more severe conditions like dementia and Alzheimer's disease.

Cognitive Functioning during Late Adulthood

According to the APA, dementia is a generalized, pervasive deterioration of memory and at least one other cognitive function, such as language and an executive function, due to a variety of causes. The loss of intellectual abilities is severe enough to interfere with an individual’s daily functioning and social and occupational activity.

Dementia

Alzheimer's disease is a specific type of dementia characterized as an irreversible, progressive brain disorder, which is understood to have a genetic basis. It gradually destroys memory and cognitive skills, eventually impairing the ability to perform simple tasks like walking, talking, and eating. This severe cognitive decline is associated with the formation of plaques in the brain resulting from cell death.

Alzheimer's Disease

Memory loss is a potential cognitive problem that can arise during late adulthood as a result of the brain no longer functioning at its peak.

Memory Loss in Late Adulthood

During late adulthood, there is a noticeable decline in fluid intelligence, which involves information processing abilities, reasoning, and memory. The speed of these cognitive processes tends to decrease as individuals age.

Decline of Fluid Intelligence in Late Adulthood

The onset of cognitive decline in late adulthood can be delayed by engaging in mentally and physically stimulating activities. Research indicates that such engagement not only lessens cognitive decline but also reduces the incidence of mild cognitive impairment and dementia.

Delaying Cognitive Decline in Late Adulthood

Research has identified parallels in spatial representation abilities between children aged 6-7 and adults over 80. This similarity is attributed to different underlying causes: immature neurology in young children and neurodegeneration in older adults.

Comparison of Spatial Representations in Young Children and Older Adults

An 82-year-old individual reports that they occasionally forget names and have noticed it takes them longer to solve complex problems than it used to. However, they continue to live independently, manage their personal affairs, and learn new hobbies. Based on the typical patterns of cognitive functioning in later life, which statement best assesses this individual's situation?

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