James E. Whinnery

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Unconsciousness resulting from exposure to increased levels of head-to-foot (+Gz) acceleration stress (501 unconsciousness episodes) on a centrifuge in asymptomatic, healthy human subjects was investigated. A method for quantitatively measuring the kinetics of the unconsciousness and associated phenomenon was developed. In addition, a theoretical framework(More)
Aerobic conditioning programs for aircrews of high performance fighter type aircraft are very important in assuring optimum fitness and health. The aerobic conditioning resulting from running alters the physiologic state of the individual, and whether or not this alteration affects +Gz tolerance is unknown. In this study, 27 long-term (2 years of running)(More)
INTRODUCTION The prevalence of drug and ethanol use in aviation is monitored by the Federal Aviation Administration (FAA). Under such monitoring, toxicological studies for the 1989-1993 and 1994-1998 periods indicated lower percentages of the presence of controlled substances (illegal drugs) than that of prescription and nonprescription (over-the-counter)(More)
A thorough understanding of +Gz-induced loss of consciousness (G-LOC) is enhanced by defining all psychophysiologic phenomena associated with G-LOC. Defining the mechanism of G-LOC and investigating methods to reduce the resulting incapacitation are facilitated by determining the kinetics of G-LOC induction, incapacitation, and recovery. Permanent video(More)
Human exposure to +Gz-induced loss of consciousness (G-LOC) remains of some concern relative to the well-being of the individuals experiencing the unconscious episodes. Detailed kinetic analysis of over 500 G-LOC episodes on a human centrifuge allowed an evaluation of the time for subjective recognition by observers of the onset of G-LOC and subsequent(More)
Our laboratory was interested in epidemiological and toxicological findings from aircraft-assisted pilot suicides. Between 1993-2002 there were 3,648 fatal aviation accidents. The NTSB determined that 16 were aircraft-assisted suicides; 15 from intentional crashing of an aircraft and 1 from exiting the aircraft while in-flight. All pilots involved in these(More)
Motivational analysis of a representative group of individuals who volunteer to participate in centrifuge acceleration research at the USAF School of Aerospace Medicine was performed. Monetary reward and curiosity were the main reasons for volunteering to participate in the research program. Fear and monetary reward not worth the risk were the main reasons(More)
Unconsciousness in humans has probably been occurring since before recorded history. Acceleration-induced loss of consciousness (G-LOC) in flight has been occurring since 1919. Loss of consciousness and syncope are common occurrences in clinical medicine with G-LOC, occurring in a large number of aircrew and research subjects during centrifuge exposures.(More)
During acceleration (+Gz) training in the human centrifuge, the anti-G suit (AGS) is usually deflated as acceleration decreases upon termination of the exposure, regardless of the reason for termination, including +Gz-induced loss of consciousness (G-LOC). This is when the trainee most needs the support provided by the AGS. A method to reduce the time of(More)
Eight healthy male volunteer members of the USAFSAM acceleration panel were exposed to two consecutive acceleration runs of +1 Gz to +7 Gz at 6 G.s-1 onset rates. The subjects were instructed to relax during the acceleration exposure in order to voluntarily induce loss of consciousness (LOC). The subjects were asked to relate dreams, thoughts, or other(More)