Fig. 2

A: The upper graph was right-left-orientation-cognition-reaction time and age. A regression line showed［Reaction Time］＝3.129×e（0.014×［AGE］）, R2: 0.129, mean RT was 9.12 sec±4.01 （standard deviation）. B: The lower graph was short-term-memory-cognition-reaction time and age. A regression line showed［Reaction Time］＝1.863×e（0.014×［AGE］）, R2: 0.132, mean RT was 5.26 sec±2.45 （standard deviation）. The abscissa represents reaction time in sec, and the ordinate represents age in years, for all graphs.