What degenerative condition is characterized by a gradual decline in cognitive function and personality changes?

Alzheimer's Disease is characterized by a gradual decline in cognitive function, including memory loss, reasoning deficits, and changes in personality and behavior. It primarily affects individuals over the age of 65, although early-onset forms can occur in younger adults. The condition is caused by the accumulation of amyloid plaques and neurofibrillary tangles in the brain, which lead to neuronal death and a decline in overall brain function.

In the context of the question, the emphasis on cognitive decline and personality changes aligns specifically with Alzheimer's Disease. Affected individuals may become withdrawn, exhibit mood swings, and show a loss of interest in activities they once enjoyed, all of which are distinct features of the disease. This gradual progression is crucial, as Alzheimer's typically unfolds over several years, differentiating it from other disorders.

Other conditions listed, such as Huntington's disease and Parkinson's disease, do have components that can affect cognition and personality, but they also have hallmark motor symptoms that are not a characteristic feature of Alzheimer's. For instance, Huntington's disease is marked by chorea and movement disorders, while Parkinson's is primarily associated with tremors and motor rigidity. Creutzfeldt-Jakob disease, while it does involve cognitive decline, progresses much more rapidly than Alzheimer's