People may have strange sensations and emotions or behave strangely. The seizures happen when clusters of nerve cells, or neurons, in the brain send out the wrong signals.

Epilepsy is a brain disorder that causes people to have recurring seizures.

Brain disorder characterized by recurring excessive neuronal discharge, exhibited by transient episodes of motor, sensory, or psychic dysfunction, with or without unconsciousness or convulsive movements.

These problems can produce seizures, unusual body movements, a loss of consciousness or changes in consciousness, as well as mental problems or problems with the senses.

A group of disorders marked by problems in the normal functioning of the brain.

A disorder characterized by recurrent seizures.

(from Adams et al., Principles of Neurology, 6th ed, p313) Epilepsy classification systems are generally based upon: (1) clinical features of the seizure episodes (e.g., motor seizure), (2) etiology (e.g., post-traumatic), (3) anatomic site of seizure origin (e.g., frontal lobe seizure), (4) tendency to spread to other structures in the brain, and (5) temporal patterns (e.g., nocturnal epilepsy).

A disorder characterized by recurrent episodes of paroxysmal brain dysfunction due to a sudden, disorderly, and excessive neuronal discharge.

These episodes may or may not be associated with loss of consciousness or convulsions.

A brain disorder characterized by episodes of abnormally increased neuronal discharge resulting in transient episodes of sensory or motor neurological dysfunction, or psychic dysfunction.

Epileptic dementia with behavioral disturbance.

Epilepsy complicating period after childbirth.Dementia due to epilepsy with behavior changes.Dementia due to epilepsy w behavioral disturbance.Epilepsy, unspecified, without intractability.

Nocturnal epileptic seizures