[Solved] What is the name of the sculpture in which Praxiteles took the unprecedented step of representing a female nude? A) Nike of Samothrace B) Erechtheion caryatid C) Aphrodite of Knidos D) Stele of Hegeso Stimulus-Stimulus Learning: A type of learning where an association is formed between two stimuli, leading to a new learned response. Two-Factor Theory: A psychological theory proposing that emotion is based on two factors: physiological arousal and cognitive label of the arousal, proposed by Stanley Schachter and Jerome E. Singer. Classical Conditioning: null Negative Reinforcement: A behavioral principle where the removal of an unpleasant stimulus strengthens a behavior or increases its likelihood of being repeated.