|
|
| Deslandes,A.C.; Veiga,H.; Cagy,M.; Piedade,R.; Pompeu,F.; Ribeiro,P.. |
| Caffeine is the most consumed psychoactive substance in the world. The effects of caffeine have been studied using cognitive and motor measures, quantitative electroencephalography (qEEG) and event-related potentials. However, these methods are not usually employed in combination, a fact that impairs the interpretation of the results. The objective of the present study was to analyze changes in electrophysiological, cognitive and motor variables with the ingestion of caffeine, and to relate central to peripheral responses. For this purpose we recorded event-related potentials and eyes-closed, resting EEG, applied the Stroop test, and measured reaction time. Fifteen volunteers took caffeine (400 mg) or placebo in a randomized, crossover, double-blind... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quantitative electroencephalography; P300; Caffeine; Cognitive and motor measures; Psychostimulants. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000700011 |
| |
