-transparent.png){kind=logo}
The effects of two drugs used to prevent symptoms of motion sickness in the operational environment were examined in this study of human performance as measured by computer-based tests of cognitive and psychomotor skills. Each subject was exposed repetitively to five tests: Symbol-Digit Substitution, Simple Reaction Time, Pattern Recognition, Digit Span Memory, and Pattern Memory. Although there have been previous reports of decreases in human performance in similar testing with higher dosages of scopolamine or dextroamphetamine, no significant decrements were observed with the operational-level combined dose used in this study (0.4 mg oral scopolamine and 5.0 mg oral dextroamphetamine.) The controversy over the use of combination drug therapy in this environment is discussed along with the indications for further research based on the findings.
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
January 1997,
Biological psychiatry,
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
July 2011,
Aviation, space, and environmental medicine,
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
March 1986,
Aviation, space, and environmental medicine,
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
September 2000,
NeuroImage,
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
February 1992,
Alcoholism, clinical and experimental research,
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
January 1984,
Psychopharmacology,
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
February 1967,
Science (New York, N.Y.),
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
July 2007,
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology,
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
March 1988,
Undersea biomedical research,
J F Schmedtje, and
C M Oman, and
R Letz, and
E L Baker
November 1972,
The American journal of psychiatry,
