Effect of benzedrine on activity
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Summary
Records of the spontaneous activity of animals were accumulated over a period of 15 days during which a medium dose of benzedrine was ingested daily. These records were compared with similar records of two control periods of the same length, one preceding and one following the benzedrine test period. The significant differences between the control and test periods definitely illustrate the activating properties of benzedrine. A difference of approximately 20 per cent between the relative variability of the control periods and the test period indicates that benzedrine tends to reduce relative variability. Evidence obtained indicated the probability that no tolerance was built up to the drug.
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References
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© Association of Behavior Analysis International 1937