Comparison of cognitive scores before and after theexperiment within the control group is shown in Table 3.Significant differences of the scores was found betweenbaseline and post experiment (p=0.001, 0.001, and 0.03).Most of the participants had negative ranks on attention(10 persons), memory (11 persons), and executive functions(9 persons) after the experiment. This indicated lower cognitiveability of the control group after the experiment. In memoryskill, there was no significant difference in recognition score(p=1.00) in this group.