Dementia in ALS (Lou Gehrig's Disease) Topic Guide
Dementia in Amyotrophic Lateral Sclerosis (Lou Gehrig Disease): Amyotrophic lateral sclerosis (ALS) affects the voluntary nervous system that causes muscles to weaken, leading progressively to paralysis and death, usually within five years of the first symptoms. ALS, or Lou Gehrig's disease, usually doesn't cause cognitive impairment, but is sometimes accompanied by dementia due to destruction of cells in the frontal lobe of the brain.
Electromyography (EMG) Electromyography, or EMG, involves testing the electrical activity of muscles. Often, EMG testing is performed with another test that measures the conducting function of nerves, called a nerve conduction study. There is minimal pain and discomfort associated with an EMG.
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