title: [EEG spectral analysis of caffeine effects].
abstract: Spectral EEG analysis is shown to quantify the centrally stimulating effects of caffeine. Comparing the effects of coffee, decaffeinated coffee, caffeine solution and placebo results in two groups of substances: coffee and caffeine solution on one side, decaffeinated coffee and placebo on the other. The within-group differences are negligible, whereas the between-group differences are highly significant. It may be concluded that caffeine is the effective factor. This study gives no valid evidence confirming possible effects of other coffee ingredients.
mesh_terms: D000328:Adult; D000513:Alpha Rhythm; D001611:Beta Rhythm; D002110:Caffeine / Q000494:pharmacology*; D002540:Cerebral Cortex / Q000187:drug effects*; D003069:Coffee; D003700:Delta Rhythm; D004569:Electroencephalography; D006801:Humans; D008297:Male; D013826:Theta Rhythm
chemical_list: D003069:Coffee; D002110:Caffeine
vernacular_title: EEG-Spektralanalyse der Coffein-Wirkung