Table 6.

Performance on Memory Tasks

Task		Group	–1 Week (baseline)	0 Week (single dose)	12 Weeks
VBM	Correct hits—immediate	Placebo	10.3 ± 2.4	11.1 ± 1.9	11.3 ± 1.7
		Theanine	10.2 ± 2.0	11.3 ± 1.8	11.4 ± 1.3
	Correct passes—immediate	Placebo	14.7 ± 0.6	14.6 ± 0.7	14.4 ± 1.2
		Theanine	14.7 ± 0.7	14.5 ± 0.9	14.6 ± 0.8
	Correct hits—delay	Placebo	8.8 ± 3.5	9.4 ± 2.7	10.5 ± 2.3
		Theanine	9.5 ± 2.7	10.4 ± 2.0	10.8 ± 2.2
	Correct passes—delay	Placebo	14.5 ± 0.9	14.0 ± 1.2	14.2 ± 1.5
		Theanine	14.0 ± 1.5	13.4 ± 1.9	13.8 ± 2.3
VIM	Correct hits—immediate	Placebo	10.1 ± 2.0	10.1 ± 2.1	10.3 ± 1.8
		Theanine	9.5 ± 2.6	9.9 ± 2.0	9.4 ± 2.5
	Correct passes—immediate	Placebo	13.0 ± 1.5	12.4 ± 2.2	12.5 ± 1.8
		Theanine	12.8 ± 2.3	12.4 ± 1.7	12.6 ± 2.3
	Correct hits—delay	Placebo	9.0 ± 2.9	9.9 ± 2.1	9.8 ± 2.2
		Theanine	9.3 ± 2.9	9.2 ± 2.5	9.0 ± 2.5
	Correct passes—delay	Placebo	11.5 ± 2.5	10.9 ± 2.6	10.3 ± 2.6
		Theanine	11.5 ± 2.8	11.7 ± 2.5	10.9 ± 3.1

Values are presented as mean ± SD.