This usually results from one of two possible causes:
1) The Thinkie sensor measured too much brain activity during the calibration period (i.e., pre-game deep breathing). The brain activity score calculates the difference between the baseline pre-game measurement and increased brain activity occurring during games. For example, if the games are played consecutively, the brain may still be active (i.e., there may still be high blood flow) carried over from the initial attempt. This can lead to less measured improvement in the second attempt. You can minimize such lingering effect by calming down and taking deep breaths during the cool-down and baseline measurement intervals.
2) It's possible that brain activity did not actually increase during the second attempt. If your concentration wanes, or your brain becomes too tired, that may reflect on your scores. In other words, if you’re not fully concentrating during play, your score may reflect that your brain is in a less-active state. We advise simply calming your mind during the next pre-game measurement period and trying again.
It’s also worth mentioning that both of these factors may be occurring simultaneously to differing degrees. Per Dr. Kawashima, the creator of Thinkie’s brain games, actual brain activity is often different from what we perceive. We recommend you use Thinkie multiple times, playing different games each time, to better understand your brain’s tendencies and learn how to maximize your results.