Effects of caffeine use and ingestion on
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Wing Hong Loke; Charles J. Meliska
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Article
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1984
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Springer
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English
β 434 KB
College students (12 female, 12 male) were assigned to either higher caffeine user (HCU) or lower caffeine user (LCU) groups based on a caffeine usage survey. Prior to testing, subjects ingested either placebo or 195 or 325 mg caffeine. They then performed a visual vigilance task measuring response