Mild Cognitive Impairment
Mild Cognitive Impairment (MCI) is a condition in which people face memory problems more often than that of the average person their age. These symptoms, however, do not prevent them from carrying out normal activities and are not as severe as the symptoms for Alzheimer's disease. Symptoms often include misplacing items, forgetting events or appointments, and having trouble thinking of desired words.
According to recent research, MCI has been called the transitional state between cognitive changes of normal aging and Alzheimer's disease. Many people who experience mild cognitive impairment are at a high risk of developing Alzheimer’s disease. Several studies have indicated that MCI individuals are at an increased risk for developing AD, ranging from 1% to 25% per year; 24% of MCI patients progressed to AD in 2 years and 20% more over 3 years, whereas a recent study indicated that the progression of MCI subjects was 55% in 4.5 years. Some patients with MCI, however, never progress to AD.
Studies have also indicated patterns that are found in both MCI and AD. Much like patients with Alzheimer's disease, those suffering from Mild Cognitive Impairment have difficulty accurately defining words and using them appropriately in sentences when asked. While MCI patients had a lower performance in this task than the control group, AD patients performed worse overall. The abilities of MCI patients stood out, however, due to the ability to provide examples to make up for their difficulties. AD patients failed to use any compensatory strategies and therefore exhibited the difference in use of episodic memory and executive functioning.
Read more about this topic: Memory And Aging
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