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Closed head injuries (CHI) may produce permanent, disabling changes in cognitive functions and social behaviour. Recent clinical case reports have suggested that stimulant medications may improve neurobehavioural functioning in CHI patients. In the present study, we evaluated the effects of methylphenidate (0.3 mg/kg b.i.d.) in 12 chronic CHI patients (14(More)
Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information,(More)
Beliefs about the perceived health benefits of exercise of 24 elite runners were compared on an objective measure of risk for coronary heart disease. Results showed a 4- to 6-fold increase in estimates of perceived risk as compared to the objective estimate of risk, suggesting that these runners held somewhat exaggerated beliefs about the health benefits of(More)
By comparing organizational dynamics to anatomy and how those organizations work to physiology, Dr. Sperry helps occupational physicians understand the organizational dynamics under which they work. Anatomy is discussed in terms of the organization's structural, cultural, leader, worker, and strategy subsystems. The process by which organizations develop,(More)
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