Summary
The effect of d-amphetamine upon locomotor activity in the monkey is not uniform and seems related to the noctural-diurnal tendencies of the subject. It increases activity of the nocturnal subject and decreases the activity of the diurnal subject.
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This work was done while the authors were at Emory University and was supported by a research grant (MH 04539) from National Institute of Mental Health.
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Isaac, W., Troelstrup, R. Opposite effect of illumination and d-amphetamine upon activity in the squirrel monkey (Saimiri) and owl monkey (Aotes). Psychopharmacologia 15, 260–264 (1969). https://doi.org/10.1007/BF00401680
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DOI: https://doi.org/10.1007/BF00401680