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Feedback: Information given by another person regarding behavior. Such information can be used constructively to improve behavior.

Flaccid: A loss of muscle tone which makes the body, or parts of it, appear limp.

Focal Brain Injury: Injury restricted to one region of the brain.

Focal Deficits: Hematomas and lesions on the surface or interior of the brain located at the site of impact or at isolated points in the brain. Not as random as diffuse consequences, these problem areas of the brain can be pinpointed and many problems attributed to them.

Frontal Lobe Dysfunction: Behavioral symptoms resulting from damage to the frontal lobes of the brain, causing diminution in self-control, foresight and/or spontaneity.

Frontal Lobes: Part of the brain involved with planning, organizing, problem solving, selective attention, personality and a variety of "higher cognitive functions".