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Document type:
journal article 
Author(s):
Koppelstaetter, F; Poeppel, TD; Siedentopf, CM; Ischebeck, A; Verius, M; Haala, I; Mottaghy, FM; Rhomberg, P; Golaszewski, S; Gotwald, T; Lorenz, IH; Kolbitsch, C; Felber, S; Krause, BJ 
Title:
Does caffeine modulate verbal working memory processes? An fMRI study. 
Abstract:
To assess the effect of caffeine on the functional MRI signal during a 2-back verbal working memory task, we examined blood oxygenation level-dependent regional brain activity in 15 healthy right-handed males. The subjects, all moderate caffeine consumers, underwent two scanning sessions on a 1.5-T MR-Scanner separated by a 24- to 48-h interval. Each participant received either placebo or 100 mg caffeine 20 min prior to the performance of the working memory task in blinded crossover fashion. The...    »
 
Journal title abbreviation:
Neuroimage 
Year:
2008 
Journal volume:
39 
Journal issue:
Pages contribution:
492-9 
Language:
eng 
Print-ISSN:
1053-8119 
TUM Institution:
Nuklearmedizinische Klinik und Poliklinik