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sensory illusion

Subject Philosophy

DOI: 10.1111/b.9781405106795.2004.x


E pistemology The perception of external objects that leads to a false belief about the world. Different persons perceiving the same object will sometimes see it differently. In some cases this will result from different perspectives or conditions of perception but not produce false beliefs. The perceptions are sensory illusions if they produce or tend to produce false beliefs. The existence of sensory illusion is cited as a proof of the existence of sense–data that are different from physical objects. Illusions present a challenge for naive or direct realism , which holds that we perceive nothing but the physical object itself. “To suffer sensory illusion is to acquire a false belief or inclination to a false belief in particular propositions about the physical world by means of our senses.” D. Armstrong, Perception and the Physical World ... log in or subscribe to read full text

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