This means that the Critic must have spoken in that animal, and that the Critic must be contained among the dopamine-producing neurons on the left, but not among the dopamine producing neurons on the right.
這說明「批評家」 對果蠅說: 不要跨過去 這說明在左邊的果蠅中，「批評家」 藏身在那些能夠製造多巴胺的細胞裏 但不存在於(能製造多巴胺的細胞)右邊的果蠅中