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Other types of short-term memory show little decline, [9] and semantic knowledge (e.g. vocabulary) actually improves with age. [43] In addition, the enhancement seen in memory for emotional events is also maintained with age. [44] Losing working memory has been cited as being the primary reason for a decline in a variety of cognitive tasks due ...
Postoperative cognitive dysfunction (POCD) is a decline in cognitive function (especially in memory and executive functions) that may last from 1–12 months after surgery, or longer. [1] In some cases, this disorder may persist for several years after major surgery. [2] POCD is distinct from emergence delirium. Its causes are under ...
The attack lessens over a period of hours, with older memories returning first, and the repetitive fugue slowly lengthening so that the victim retains short-term memory for longer periods. This characteristic of TGA, where the length of time affected by retrograde amnesia shortens (i.e. older memories return first, followed by more recent ...
Since stroke is an essential part of vascular dementia, [13] the goal is to prevent new strokes. This is attempted through reduction of stroke risk factors, such as high blood pressure, high blood lipid levels, atrial fibrillation, or diabetes mellitus. [2] [5] Medications for high blood pressure are used to prevent pre-stroke dementia. [19]
As memory processing occurs in the brain over time, neocortical regions can directly communicate with each other, so they do not rely as heavily on the hippocampus for long-term memory storage. [3] Therefore, if an individual experiences RA that damages the hippocampus, they will lose more short-term memories according to this theory.
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The brain is very complex, and is composed of many different areas and types of tissue, or matter. The different functions of different tissues in the brain may be more or less susceptible to age-induced changes. [6] The brain matter can be broadly classified as either grey matter, or white matter.
The person's short-term memory may appear to be normal, but the person may have a difficult time attempting to recall a past story, or with unrelated words, as well as complicated patterns. [46] Korsakoff's syndrome is unique because it involves both anterograde and retrograde amnesia.