Direct visual perception: A reply to Gyr.

Notes that in J. Gyr's (see PA. Vol. 48:4093) criticism of J. J. Gibson's theory of perception, Gyr did not take into account the basic issue of the availability of stimulus information nor consider the radically new conception of proprioception and self-awareness that is an essential part of the theory. (PsycINFO Database Record (c) 2010 APA, all rights reserved)