How does caffeine influence memory? Drug, experimental, and demographic factors
Ruo-Chong Zhang1, Christopher R Madan1
1School of Psychology, University of Nottingham, Nottingham, UK.
Neuroscience and Biobehavioral Reviews
|September 26, 2021
Summary
Caffeine
Area of Science:
- Neuroscience
- Pharmacology
Background:
- Caffeine is a prevalent nootropic agent.
- Its impact on memory in healthy individuals requires further investigation.
Purpose of the Study:
- To review existing evidence on caffeine's effects on various memory types.
- To identify modulating factors such as drug, experimental, and demographic variables.
Main Methods:
- Systematic review of studies on caffeine and memory.
- Analysis of influencing factors: dosage, source, experimental conditions, and participant demographics.
Main Results:
- Limited evidence suggests caffeine primarily enhances reaction times, with inconsistent effects on other memory domains.
- Findings on dose-response relationships are contradictory.
- Source of caffeine and demographic factors (sex, age) may influence outcomes.
Conclusions:
- Caffeine's effects on memory are complex and modulated by multiple factors.
- Future research should control for diet, sleep, withdrawal, and explore effects on visuospatial, prospective, and implicit memory.
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