Definition of Focal seizure

1. Noun. Transitory disturbance in motor or sensory function resulting from abnormal cortical activity.

Generic synonyms: Ictus, Raptus, Seizure
Group relationships: Cortical Epilepsy, Focal Epilepsy

Medical Definition of Focal seizure

1. A brief temporary alteration in movement, sensation or autonomic nerve function caused by abnormal electrical activity in a localised area of the brain. Focal seizures (i.e. Partial or Jacksonian seizures) usually cause no change in awareness or alertness. An example of a focal (partial) seizure would be rhythmic muscle contractions in one area of the body: lip smacking, mouth movements, drooling, head turning, eye movements or seemingly purposeful movements (for example picking at clothes). Other presentations may be strictly sensory with abnormal numbness, tingling or a crawling sensation to the skin. More unusual symptoms include changes in speech, thought, personality, mood, sensation of deja vu or hallucinations. (05 Jan 1998)

Lexicographical Neighbors of Focal Seizure

focal lymphocytic thyroiditis
focal metastatic disease
focal motor seizure
focal necrosis
focal nephritis
focal nodular hyperplasia
focal plane
focal point
focal points
focal ratio
focal reaction
focal sclerosing glomerulopathy
focal sclerosis
focal sclerosis with hyalinosis
focal segmental glomerulosclerosis
focal seizure (current term)
focal spot
focal spot size
focalisation
focalise
focalised
focalises
focalising
focalization
focalizations
focalize
focalized
focalizes
focalizing
focally

Literary usage of Focal seizure

Below you will find example usage of this term as found in modern and/or classical literature:

1. Handbook of Severe Disability: A Text for Rehabilitation Counselors, Other edited by Walter C. Stolov, Michael R. Clowers (2000)
"focal seizures The nature of a focal seizure depends on the area of the cortex in which it begins. For example, a seizure beginning in the parietal lobe ..."

2. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1919)
"... spasm of a beginning focal seizure. Preyer speaks of the muscles involved in the impulsive acts as possessing such a slow, crawling movement that the ..."

3. The Impact of Chaos on Science and Society by Celso Grebogi, James A. Yorke (1997)
"A focal seizure starts at a specific site in the brain, often corresponding to some sort of physiological damage, and the seizure spreads to other parts of ..."

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