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Syndromes of Cognitive Dysfunctiona 

Syndromes of Cognitive Dysfunctiona
Chapter:
Syndromes of Cognitive Dysfunctiona
Author(s):

Kelly D. Flemming

DOI:
10.1093/med/9780190244927.003.0032
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date: 14 October 2019

Cognitive function refers to the mental process of knowing things. It includes high-level cortical functions such as memory, language, perception, and executive function (planning, initiating, and reasoning). This function generally depends on the alert state and focused attention. Dysfunction of cognition without a change in consciousness may result in various disorders, including aphasia, apraxia, agnosia, executive dysfunction, and memory disorders such as dementia and amnesia. Transient dysfunction of cognition associated with a change in level of consciousness or attention may be due to delirium or confusional states. This chapter broadly introduces the specific definitions of cognitive dysfunction and the overall differential diagnoses.

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