探討 認知疲勞 記憶力測驗 腦袋過勞 當前議題

We all know the feeling of mental exhaustion. Now, researchers may know what causes the brain to feel tired. Johns Hopkins teams gave 28 participants tasks to exercise their memory. Before and after the test, they were asked to identify their level of cognitive fatigue.

其實,腦袋覺得累到底是怎麼一回事?有的人大概會想到那種繞不完的思緒,有時候只是記了幾樣東西,結果腦中就像塞車。最近約莫有一小群人參加某個跟記憶力相關的測驗,好像時間也沒說特別長,但在這之前和之後,他們被問到「你現在精神狀態怎麼樣?」說來也挺妙,大家對於「認知疲勞」的感受可能落差滿大。不過,這讓人聯想到——除了這些測試外,是不是日常生活中還有哪些情境,也容易讓我們無聲無息地進入「腦袋過勞」?換句話問,我們平常意識到自己累了,是身體喊卡比較快,還是腦子先舉白旗?