Effects of caffeine deprivation on taste and mood
作者:
L. Brauer,
B. Buican,
H. de Wit,
期刊:
Behavioural Pharmacology
(OVID Available online 1994)
卷期:
Volume 5,
issue 2
页码: 111-118
ISSN:0955-8810
年代: 1994
出版商: OVID
关键词: Caffeine;Coffee;Deprivation;Humans;Subjective effects;Taste
数据来源: OVID
摘要:
Despite its ubiquitous consumption in the natural environment, caffeine has not been a reliable reinforcer in laboratory settings. The reinforcing effects of caffeine are greater in caffeine-dependent subjects relative to non-dependent subjects, but the mechanism underlying this difference remains unclear. We hypothesized that deprivation from caffeine would produce alterations in subjective ratings of stimuli commonly associated with caffeine consumption. Specifically, we hypothesized that hedonic ratings of She coffee taste would be selectively enhanced following caffeine deprivation. Twelve regular caffeine users received acute doses of caffeine (300 mg) or placebo after 33 h of caffeine deprivation or non-deprivation. They rated the taste of coffee and sucrose, saccharin, and quinine solutions on intensity, bitterness, sweetness, pleasantness, and unpleasantness. Contrary to our hypothesis, subjects' ratings of She pleasantness of the coffee taste were not significantly altered by caffeine deprivation. However, subjects' ratings of the bitterness and sweetness of the coffee taste and ratings of the sucrose solution were altered by caffeine. Implications of these data for caffeine self administration are discussed.
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