Both Langer and Stone were my physicist advisors, introduced me to the field of positive psychology into this research.

两位都是我的物理学导师，带我进入了积极心理学领域的研究。

哈佛公开课 - 幸福课课程节选

But essentially research that falls under or within the field of positive psychology.

但本质上属于积极心理学范畴。

哈佛公开课 - 幸福课课程节选