When a person is unresponsive to people and activities, they are said to be unconscious. A coma, or being in a comatose condition, is what doctors term it. Without going unconscious, other alterations in awareness can occur.
Affected mental status or altered mental status are terms used to describe these situations.
Fits:
Fits are sudden bursts of aberrant electrical activity in the brain. When your body shakes excessively, it might go almost unnoticed or, in severe situations, induce unconsciousness and seizures.
Fits generally strike out of nowhere. The duration and severity of the condition can differ. Fits might occur only once or several times.
Final answer: Fits or unconsciousness targets the Brain.