一道电流，把病人从死亡边缘拉回，也抹去了他记忆中亲人的模样。精神科医生戴塞罗思不甘心：能否在大脑亿万个神经元中，精准找出并修复那些调控情绪的细胞？二十多年后，他用一束光给出了回答。
2026年，诺贝尔生理学或医学奖授予德国科学家黑格曼、内格尔与戴塞罗思。前两位在绿藻中发现了感光蛋白，戴塞罗思把它引入脑内，开创了用光控制神经元的光遗传学。
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