Psychogeography for planners

Psychogeography is the term for how our places - our cities, neighborhoods, streets, parks - shape our psychology or "condition the things we do and think." In Ryan Holeywell's interview with neuroscientist Colin Ellard, it is clear that the differences between our cities and their suburbs are linked with the mental well-being of their residents. How much of this should change our designs for our ccities?