Efficacy of Standardized Extract of Bacopa monnieri (Bacognize®) on Cognitive Functions of Medical Students: A Six-Week, Randomized Placebo-Controlled Trial
Table 3
Effect of Bacopa monnieri (300 mg/day) on neuropsychological tests (mean scores ± SD).
Neuropsychological task
Bacopa group
Placebo group
“” value
()
()
Before drug
After drug
Before drug
After drug
Digit span forwards
7.23 ± 1.11
7.85 ± 0.83
7.83 ± 1.19
7.73 ± 0.23
>0.05
Digit span backwards
8.1 ± 1.3
8.3 ± 0.9
9.1 ± 1.0
8.3 ± 0.8
<
Paired associate task
8 ± 1.3
7.7 ± 1.4
8.1 ± 1.1
7.9 ± 1.3
>0.05
Logical memory test
3.4 ± 2.6
5.2 ± 4.5
5.5 ± 2.6
4.1 ± 3.8
<
Memory span for nonsense syllables
5.4 ± 3.3
6.9 ± 2.4
4.7 ± 2.3
6.1 ± 2.9
>0.05
Finger tapping test
152.28 ± 15.75
154.56 ± 13.71
157.60 ± 14.89
158.48 ± 27.89
>0.05
Simple reaction time
221.88 ± 53.17
221.01 ± 52.16
213.13 ± 33.6
212.49 ± 33.62
>0.05
Choice reaction time
350.07 ± 52.08
340.03 ± 62.26
342.39 ± 67.54
340.95 ± 64.45
>0.05
Choice discrimination test
383.70 ± 52.54
387.06 ± 53.47
374.02 ± 51.46
379.44 ± 58.32
>0.05
Digit picture substitution test
1492.69 ± 368.58
1467.78 ± 556.55
1465.94 ± 293.94
1325.44 ± 207.07
>0.05
On comparing Bacopa group with placebo group by using unpaired Student’s “”-test.
