Key result
Blood alcohol levels of ~0.03% impair visual cognitive processing and motor response times.
Why the study?
Few studies have investigated the cognitive effects of low blood alcohol concentrations around 0.03%.
Does a blood alcohol concentration of around 0.03% impair neuropsychological functions in healthy male subjects?
Comparison
Blood alcohol concentration of around 0.03% vs placebo
Design
Double-blind, placebo-controlled, two-period crossover study
Authors
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BAC ~0.03% impairs response and decision times; challenges current legal limits and extends RCT evidence on low-level alcohol effects.
RCT (n=16)
Double-blind
crossover
Does a blood alcohol concentration of around 0.03% impair neuropsychological functions in healthy male subjects?
Even low blood alcohol concentrations of around 0.03% significantly impair cognitive functions related to visual information processing and response times.
Breitmeier et al. (2007) conducted an RCT in Healthy (n=16). Alcohol vs. Placebo was evaluated on Neuropsychological functions including response times, vigilance, and memory. Blood alcohol concentrations of around 0.03% significantly impaired cognitive functions relying on visual information processing, including total and motor response times to optical stimuli.
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