The (old) New Realism: what Holt has to offer for ecological psychology.

As Ecological Psychology pushes into new areas, success will be made easier by a rediscovery its theoretical history, in particular the "New Realism", lead in part by E. B. Holt. Three New Realists tenants seem particularly relevant: (1) we experience reality, (2) relations are real, and (3) things are what you see when you see those things. Though the two groups differ in terms of their conception of perception, and what can be perceived, their conceptions are related in very insightful ways. Further, the comparison reemphasizes the extent of unique empirical claims ecological psychologists make, and grounds those claims within a larger framework for psychology as a whole. This makes obvious the need for further work on the mathematics of invariants, the physiological mechanisms of information extraction, and the behaviors of perception.