Observations on the neurophysiologic theory of acceleration (+Gz) induced loss of consciousness.

The characteristics of centrifuge +Gz-induced loss of consciousness (G-LOC) have revealed a specific kinetic pattern of resulting physiologic events. The relationship of these events provides an initial basis for describing the possible neurophysiologic mechanism of G-LOC. A description of G-LOC is developed which divides the G-LOC episode into specific periods based on the psychophysiologic events that occur. Emphasis is placed on the type of acceleration profile which would be most likely to occur during inflight aerial combat maneuvering in fighter aircraft. The symptoms of myoclonic flail movements and memorable dreams which are observed in association with G-LOC may provide key information for unraveling the neurophysiologic mechanism of G-LOC and subsequent recovery. A detailed understanding of the kinetics and mechanism of G-LOC is paramount to eventually solving this critical fighter aviation related problem.