When the experimenters compared the three brain scans, it became clear that in the second scan the blood flow to the area of the parietal lobe that controls spatial manipulation had increased and that the area had enlarged. Then, after not being exercised for three months, the area shrank.
當實驗者把 3 張不同時期的大腦圖擺在一起，很明顯地看出，第 2 張圖的頂葉掌管空間運動的地方血流量增多、區域變大；3 個月不練習，那個區塊又縮小。