The logic , according to jackie andrade , a psychology professor at the university of plymouth in england , is that doodling takes up just enough cognitive energy to prevent the mind from daydreaming .

该报告作者英国普利茅斯大学（universityofplymouth）心理学教授杰克安德雷德（jackieandrade）说，涂鸦能调动人体的认知能量，避免大脑“放空”。