Merck Manual

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Introduction to Symptoms of Neurologic Disorders

By

Michael C. Levin

, MD, College of Medicine, University of Saskatchewan

Last full review/revision Aug 2021| Content last modified Sep 2022
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Neurologic symptoms vary greatly because the nervous system controls many different body functions. Symptoms can include all forms of pain and can involve muscle function, sensation, interpretation of sensory stimuli, the special senses (vision, taste, smell, and hearing), sleep, awareness (consciousness), and mental function (cognition). The following are some examples:

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