representations resulting from a passive reception of (incomplete) sensory inputs coming from the outside world. According to O'Regan (1992), the major issue with this perspective is that it leaves the subjective character of perception unexplained. Thus, perception is understood as an active process conducted by perceiving and engaged agents (perceivers). Furthermore, perception is influenced by agents' motives and expectations, their bodily states, and the interaction between the agent's body and the environment around it. See also References Citations Sources Bibliography Arnheim, R. (1969). Visual Thinking. Berkeley: University of California Press. . Flanagan, J. R., & Lederman, S. J. (2001). "'Neurobiology: Feeling bumps and holes. News and Views", Nature, 412(6845):389–91. (PDF) Gibson, J. J. (1966). The Senses Considered as Perceptual Systems, Houghton Mifflin. Gibson, J. J. (1987). The Ecological Approach to Visual Perception. Lawrence Erlbaum Associates. Robles-De-La-Torre, G. (2006). "The Importance of the Sense of Touch in Virtual and Real Environments". IEEE MultiMedia,13(3), Special issue on Haptic User Interfaces for Multimedia Systems, pp. 24–30. (PDF) External links Theories of Perception Several different aspects on perception Richard L Gregory Theories of Richard. L. Gregory. Comprehensive set of optical illusions, presented by Michael Bach. Optical Illusions Examples of well-known optical illusions. The Epistemology of Perception Article in the Internet Encyclopedia of Philosophy Cognitive Penetrability of Perception and Epistemic Justification Article in the Internet Encyclopedia of Philosophy Concepts in epistemology Concepts in ethics Concepts in logic Concepts in metaphysics Cognitive science Critical thinking Experimental psychology Metaphysics of mind Neuropsychological assessment Ontology Philosophy of mind Philosophy of psychology Reality Sensory systems Sources of knowledge Subjective experience Thought Truth Unsolved problems in neuroscience