Projection
(Lat. projectio, from projicere, to throw forward) The mental act of attributing to sensations or sense qualia, an external and independent existence. The projection theory of Condillac and other sensationalists (see Sensationalism) asserts that sensations are first experienced as subjective states and are subsequently externalized by a special act of mind. Helmholtz restricted projection to spatial projection (the localization of sensations in space at a certain distance from the body) but the more general usage is preferable. — L.W.