Taps	Stimulant	participant
446	Placebo	A
453	Caffeine	A
472	Theobromine	A
451	Placebo	B
466	Caffeine	B
460	Theobromine	B
455	Placebo	C
474	Caffeine	C
481	Theobromine	C
496	Placebo	D
523	Caffeine	D
511	Theobromine	D