二に分ぶん心しんMeanings1nounbicameral mind; bicameralismpsychologyA psychology term referring to Julian Jaynes's theory of a two-chambered mentality in early human consciousness.ジュリアン・ジェインズは、古こ代だい人じんの意い識しきは二に分ぶん心しんだったと主しゅ張ちょうした。Julian Jaynes argued that ancient people had a bicameral mind.
