Illusions: A Psychological Study

action active illusions actual æsthetic answer appear arise associationist attention belief called ception circumstances clearly cognition colour common complete condition connected consciousness degree distinct distinctly dream-fancy dreams effect elements emotional error example excitation expectation experience external fact feeling force G. H. Lewes habit hallucination idea illusions of memory illusions of perception illusory illustrated imagination impression impulse individual inference intellectual interpretation introspection intuitive involves J. S. Mill Johannes Müller kind knowledge known look mental image mind mnemonic image mode movement nature nervous object observed optical illusions organic ourselves particular passive illusions past perience peripheral philosophic physiological preperception present process of belief psychology reality recognition recognize recollection reference region relation remote representation respect retina rience scientific seems seen sense sense-impression sense-perception sleep stereoscope stimulation suggestion supposed tend thaumatrope thing tion uncon vague visual visual perception vivid waking Wundt