Sustaining Female UH-60 Helicopter Pilot Performance with Dexedrine During Sustained Operations: A Simulator Study PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages : 69
Book Description
The efficacy of Dexedrine for sustaining the performance of six female UH-60 pilots under conditions of moderate sleep deprivation was determined. Each subject was exposed to one week of testing which included 2, 40-hour sleep deprivation periods. During both deprivation periods, there were 5 equally-spaced test sessions, each of which included a UH-60 simulator flight, an electroencephalographic (EEG) evaluation, a test on the Microsoft Flight Simulator, a Profile of Mood States questionnaire, and a cognitive evaluation on the Synthetic Work Battery. These testing sessions began at 0100, 0500, 0900, 1300, and 1700. During one of the deprivation periods, subjects were administered a 10-mg dose of Dexedrine one hour prior to each of the first three sessions (for a total of 30 mgs). During the other deprivation period, subjects were administered placebos. A double-blind administration scheme was used. Vital signs were monitored at regular intervals throughout the study.
Author: Publisher: ISBN: Category : Languages : en Pages : 69
Book Description
The efficacy of Dexedrine for sustaining the performance of six female UH-60 pilots under conditions of moderate sleep deprivation was determined. Each subject was exposed to one week of testing which included 2, 40-hour sleep deprivation periods. During both deprivation periods, there were 5 equally-spaced test sessions, each of which included a UH-60 simulator flight, an electroencephalographic (EEG) evaluation, a test on the Microsoft Flight Simulator, a Profile of Mood States questionnaire, and a cognitive evaluation on the Synthetic Work Battery. These testing sessions began at 0100, 0500, 0900, 1300, and 1700. During one of the deprivation periods, subjects were administered a 10-mg dose of Dexedrine one hour prior to each of the first three sessions (for a total of 30 mgs). During the other deprivation period, subjects were administered placebos. A double-blind administration scheme was used. Vital signs were monitored at regular intervals throughout the study.
Author: Publisher: ISBN: Category : Languages : en Pages : 83
Book Description
To determine the efficacy and safety of using Dexedrine to sustain aviator performance during periods of sleep deprivation, a placebo-controlled study was conducted. Six U.S. Army helicopter pilots completed five, 1-hour flights in a specially-instrumented UH-60 simulator while their performance was evaluated via a computerized scoring system. Immediately following each flight, data were collected on electroencephalographic (EEG) activity, cognitive/psychomotor performance, and subjective mood ratings. The testing sessions began with flights at 0100, 0500, 0900, 1300, and 1700. One hour prior to each of the first three sessions on the drug-administration days, the aviators were given 10 mg of Dexedrine or placebo. Statistical analyses of the flight maneuvers revealed that Dexedrine improved aviator control on every maneuver with the exception of the hovering turns and the formation flight. Performance on the stationary hovers, the low level navigation, the climbs and descents, straight- and-level segments, standard-rate turns, and the left-descending turn all manifested at least one Dexedrine-related enhancement. Stimulants, Aviators, Flight performance, EEG, Mood.
Author: John A. Caldwell Publisher: ISBN: 9781423556657 Category : Amphetamines Languages : en Pages : 68
Book Description
The purpose of this investigation was to establish the efficacy of Dexedrine for sustaining aviator performance despite 64-hours of extended wakefulness. Although earlier flight studies yielded favorable results with no significant side effects, they were restricted to sleep-deprivation periods of only 40 hours. Due to requirements for longer periods of sustained wakefulness, it was necessary to study the efficacy of Dexedrine for maintaining aviator performance during 3 days and 2 nights without sleep. To accomplish this, computerized evaluations of aviator flight skills were conducted at regular intervals as subjects completed standardized flights in a UH-60 helicopter simulator, both: under Dexedrine and placebo. Laboratory-based assessments of cognitive, psychological, and central nervous system status were completed as well. Dexedrine (10 mg.) was given prophylactically (prior to signs of fatigue) at midnight, 0400, and 0800 on both deprivation days in one cycle, and placebo was given on both days in the other. Results indicated simulator flight performance was maintained by Dexedrine for up to 58 hours, while performance under placebo rapidly deteriorated. The drug was most beneficial
Author: John A. Caldwell Publisher: ISBN: 9781423584773 Category : Languages : en Pages : 66
Book Description
Current battlefield doctrine indicates that Army aviators must be prepared to engage in sustained operations against enemy forces. Fighting around the clock creates a tactical advantage because of the continuous strain that is placed upon enemy forces. However, this strategy can backfire if there are insufficient U.S. personnel to adequately staff the day and night shifts with well-rested crews. Fatigue produces slow and inaccurate performance, errors of omission, and deteriorations in mood and motivation. In some situations where adequate sleep is not possible, the administration of stimulants is the only effective countermeasure for sleep loss. This study was conducted to determine the efficacy of prophylactic Dexedrine administration for maintenance flight performance in sleep deprived helicopter pilots. Ten UH-60 pilots were exposed to two 40-hour periods of continuous wakefulness in 1 week of testing. During both periods, subjects completed flight in a specially-instrumented UH-60 helicopter, as well as electroencephalographic, cognitive, and mood tests. During one of the deprivation periods, the subjects were administered a 10-mg dose of Dexedrine
Author: Wolf Boucsein Publisher: CRC Press ISBN: 0585335427 Category : Technology & Engineering Languages : en Pages : 398
Book Description
This volume promotes engineering psychophysiology as a discipline and demonstrates its value to a new audience who we hope will consist of ergonomists, human factors psychologists, and engineers. The editors use a broad definition of what constitutes engineering, including all aspects of the fields known as human engineering, industrial engineering, and safety and systems engineering. The two goals for the volume are reflected in the subtitle. The Issues section introduces the components critical for the successful application of psychophysiological methods to problems in engineering. The chapters are intended to provide an introduction for the reader who is unfamiliar with psychophysiology and to provide the newcomer to the discipline with an overview of the basic theoretical, measurement, instrumentation, and experimental design questions inherent in the use of psychophysiological methods. The Applications section illustrates the many ways that psychophysiological methods are already being used in engineering applications. A broad definition of application is used to include laboratory and simulation research, as well as field studies, and all of the chapters address questions that are relevant for applying psychophysiological methods in the field. The editor's intent is to stimulate investigators to use these methods in new problem areas; therefore, the content of the chapters varies widely, from reviewing specific psychophysiological measures to reviewing work performed on specific engineering problems.
Author: John Caldwell Publisher: ISBN: Category : Languages : en Pages : 20
Book Description
A quasi-experimental approach assessed the pilot performance comparability of simulator versus in-flight results. Flight data from three sleep-deprivation studies were pooled. Twenty aviators were included, 10 who flew a UH-60 helicopter simulator and 10 who flew a UH-60A aircraft under the influence of Dexedrine or placebo during 40 hours of continuous wakefulness. Performance on straight and levels, right and left turns, climbs and descents, and a left-descending turn (assessed at 0100, 0500, 0900, 1300, and 1700) tended to correspond in the simulator and aircraft. Generally, performance under Dexedrine was better than under placebo. However, only half of the maneuvers showed consistent, statistically significant stimulant/fatigue effects in both flight platforms. Measurement sensitivity was lower in the aircraft, likely because of error variance due to environmental influences (weather, temperature, and turbulence) and other factors (radio traffic and anxieties about safety). Thus, actual in-flight studies, while desirable in terms of face-validity, underestimate the impact of stressors such as fatigue on pilots.
Author: Salim Surani Publisher: Bentham Science Publishers ISBN: 1608052710 Category : Health & Fitness Languages : en Pages : 178
Book Description
"The National Highway Traffic Safety Administration (NHTSA) estimates that upto 4 percent of all fatal crashes are caused by drowsy driving and as many as 100,000 patients deaths per year may be due to fatigue related medical errors by doctors and nurses i"
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Author: John A. Caldwell
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Author: John A. Caldwell
Author: John A. Caldwell
Author: Wolf Boucsein
Author: John Caldwell
Author: Salim Surani
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