Controlled clinical trial1981

Behavioral and autonomic effects of caffeine in normal boys

Rapoport JL, Elkins R, Neims A, Zahn T, Berg CJ

Developmental pharmacology and therapeutics · 13 citations

Review labels

Funding not disclosed

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Controlled clinical trial (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Funding not disclosed

Publication

Published
2017-08-11 · Dev Pharmacol Ther · vol. 3 · issue 2 · pp. 74–82
Publisher
Karger Publishers
Cited
39 citations · more than 73% of similar papers · 1.0× the field average
References
0 works
Access
Paywalled
Research areas
Coffee research and impacts
Keywords
Caffeine, Placebo, Crossover study, Psychology, Autonomic nervous system, Medicine, Anesthesia, Internal medicine, Endocrinology, Heart rate, Blood pressure
MeSH
autonomic nervous system, saliva, humans, caffeine, diet, double-blind method, behavior, arousal, reaction time, manifest anxiety scale, dose-response relationship, drug, drug tolerance, child, male, skin physiological phenomena

5 authors

From US

  • Judith L. RapoportNational Institute of Mental Health
  • Robert ElkinsNational Institute of Mental Health
  • Alan NeimsNational Institute of Mental Health
  • Theodore P. ZahnNational Institute of Mental Health
  • Carol J. Berg

Abstract

Following a 1-week baseline, 19 normal boys (mean age 9.8 +1.8 years) ingested either caffeine (5 mg/kg) or placebo twice a day for a 2-week period per condition in a double-blind crossover study (total study duration of 5 weeks) to study the behavioral, autonomic and side effects of caffeine. Mothers of the whole sample and children who were low caffeine users could distinguish between drug conditions by side effects. Caffeine increased autonomic reactivity of low users only. Behavioral and autonomic results were ambiguous for high users indicating possible caffeine withdrawal symptoms. While 'caffeinism' may occur in children, either self-selection and/or tolerance may prevent its occurrence in naturally selected diets.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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