DISCRIMINATION AND COMPARISON
Locke on discrimination. Martineau _ditto_. Simultaneous
sensations originally fuse into one object. The principle of
mediate comparison. Not all differences are differences of
composition. The conditions of discrimination. The sensation
of difference. The transcendentalist theory of the perception
of differences uncalled for. The process of analysis. The
process of abstraction. The improvement of discrimination by
practice. Its two causes. Practical interests limit our
discrimination. Reaction-time after discrimination. The
perception of likeness, 528. The magnitude of differences. The
measurement of discriminative sensibility: Weber's law. Fechner's
interpretation of this as the psycho-physic law. Criticism
thereof.