visual and spatial information may be damaged in people with Alzheimer’s Disease
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New research, however, has shown that a part of the brain that processes visual and spatial information may be damaged in people with Alzheimer’s Disease. Other parts of the brain including the basal forebrain and hippocampus, areas important for memory, are also affected by Alzheimer’s Disease. Research suggests that the formation of tangles in the brain may be a part of the normal aging process. Other observed changes in the brain affected by Alzheimer’s Disease include:. Neuronal degeneration in a part of the brain called the nucleus basalis of Meynert. Decreased brain levels of the neurotransmitter acetylcholine. Aprotein named tau has been shown to be involved informing NFTs, but more research is needed to solve the mystery of how and why NFTs form, and how exactly they affect the brain. The amyloid protein occurs naturally incur brains, but as we age, too much of it (in a form called beta amyloid)accumulates in the brain, forming plaques Brain imaging methods can also be used to gain information about blood flow and metabolic activity in various parts of the brain. Brain imaging — Internal images of the brain help detect strokes, tumors or other conditions that may have affected the brain. Brain images can show changes to structures in the brain that are associated with memory, such as the hippocampus. Brain imaging techniques offered at Mayo Clinic are: Computed tomography (CT scan) — In this test, an X-ray machine rapidly rotates around the brain while taking a series of thin X-ray beams that produce two-dimensional images. Expanding Diagnostic Tools because a definitive diagnosis of Alzheimer’s Disease can only be made by examining the brain after a person dies, AD diagnosis in the living must be made by exclusion. |
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