Advantage,

factors of, 245-248, 259, 382;
law of, 256

Aggressive behavior,

160-161, 164-165

After-images,

226-227, 451-452

Ambiguous figures,

253-254, 425

Analysis,

of motives, 565-566, 569;
of sensations, 197, 201, 203, 205-206, 211-212, 230, 233