Biomaterial Database

Steady state and transient G-excess effects. 1991

F E Guedry, and A H Rupert

Medical Sciences Department, Naval Aerospace Medical Research Laboratory, Pensacola, FL 32508-5700.

Acceleration forces of flight are associated with a number of spatial orientation illusory effects. This note focuses on two effects, both called the "G-excess effect." A distinction between steady-state and transient G-excess effects is important because prescriptions for preventive management of effects in flight will differ.

UI	MeSH Term	Description	Entries
D009949	Orientation	Awareness of oneself in relation to time, place and person.	Cognitive Orientation,Mental Orientation,Psychological Orientation,Cognitive Orientations,Mental Orientations,Orientation, Cognitive,Orientation, Mental,Orientation, Psychological,Orientations,Orientations, Cognitive,Orientations, Mental,Orientations, Psychological,Psychological Orientations
D006112	Gravitation	Acceleration produced by the mutual attraction of two masses, and of magnitude inversely proportional to the square of the distance between the two centers of mass. It is also the force imparted by the earth, moon, or a planet to an object near its surface. (From NASA Thesaurus, 1988)	G Force,Gravistimulation,Gravity,Force, G,G Forces,Gravities
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000054	Acceleration	An increase in the rate of speed.	Accelerations
D000337	Aerospace Medicine	That branch of medicine dealing with the studies and effects of flight through the atmosphere or in space upon the human body and with the prevention or cure of physiological or psychological malfunctions arising from these effects. (from NASA Thesaurus)	Aviation Medicine,Space Medicine,Medicine, Aerospace,Medicine, Aviation,Medicine, Space