External discriminative stimuli can modify the behavioral effects of d-amphetamine. Previous work with the pigeon has demonstrated that some aspects of performance on the fixed consecutive number schedule are changed less if a discriminative stimulus indicates when reinforcement is available. This e
Sleep: Effects ofd- andl-amphetamine in man and in rat
โ Scribed by Ernest Hartmann; James Cravens
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 472 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0033-3158
No coin nor oath required. For personal study only.
โฆ Synopsis
Almost identical results are reported in man and in rat for the effects of the amphetamine isomers on polygraphically recorded sleep. In both species, dextro-amphetamine produces a significantly greater increase in waking time. In both species, the two isomers have equal effects in reducing desynchronized sleep time. These findings combined with other recent data suggest that dopamine plays a direct rolw in wakefulness while norepinephrine is related inversely to amolnts of desynchronized sleep.
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