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Slowing

A term used to describe a group of brain waves on the EEG that have a lower frequency than expected for the subject’s age and level of alertness and the area of the brain recorded. Slow waves can result from drowsiness or sleep, drugs, or brain injuries and occur during or after seizures.

Simple partial seizure

An epileptic seizure that involves only part of the brain and does not impair consciousness.

Sharp wave

An EEG pattern indicating the potential for epilepsy; “benign” sharp waves are not associated with seizures.

Sensory

Pertaining to the senses (touch, vision, hearing, taste, smell).

Selective Serotonin Reuptake Inhibitor (SSRI)

A drug that blocks the removal of serotonin from the synapse; thereby prolonging and increasing the effects of serotonin.

Seizure

A sudden, excessive discharge of nervous-system electrical activity that usually causes a change in behavior.

Seizure threshold

Minimal conditions necessary to produce a seizure.

Sessile

See Intrahypothalamic.

Resting State functional MRI (rs-fMRI)

Resting State functional MRI (rs-fMRI) is a relatively new type of test that locates all of the major brain networks.  Many major epilepsy centers are using this tool primarily for research in determining if it can help locate where seizures come from in the brain, whereas only a few are using it as part of…

Rehabilitative specialists

The rehabilitative team can include occupational therapists, physical therapists, and speech therapists, who work to help improve strength, mobility, or communication.