Subjects recovered better from low-level stress when looking out a glass window at nature than when looking at a HDTV real-time display of nature through a plasma display, and recovered better when looking at the plasma display than at a blank wall.
Kahn, Peter H., Batya Friedman, Brian Gill, Jennifer Hagman, Rachel L. Severson, Nathan G. Freier, Erika N. Feldman, Sybil Carrère, and Anna Stolyar. (2008). A plasma display window?—The shifting baseline problem in a technologically mediated natural world. Journal of Environmental Psychology, 28(2), 192-199.