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This study compared the subjective, physiological, and psychomotor effects of atomoxetine and methylphenidate with placebo in healthy volunteers. Sixteen non-dependent light drug users participated in six experimental sessions, receiving placebo, atomoxetine (20, 45 and 90 mg) and methylphenidate (20 and 40 mg) using a double-blind, Latin square design.(More)
BACKGROUND AND PURPOSE Musculoskeletal impairments and functional limitations are linked to disability in older adults. The purposes of this study were to identify the extremity musculoskeletal impairments that best predict functional limitations in older adults and to assess the validity of measurements obtained for the Physical Performance Test (PPT) as a(More)
BACKGROUND Detailed intervention descriptions and robust evaluations that test intervention impact--and explore reasons for impact--are an essential part of progressing implementation science. Time series designs enable the impact and sustainability of intervention effects to be tested. When combined with time series designs, qualitative methods can provide(More)
The present study was designed to characterize nicotine withdrawal during a 5-day period in which smokers who were not trying to quit were offered monetary incentives to abstain while residing in their usual environments. Participants were randomly assigned to one of three groups. In two groups, monetary payment was delivered contingent on breath carbon(More)
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