In an experiment, the pupils of subjects' eyes contracted when a bright light was shown. After continual pairing of the bright light with the sound of a bell, the subjects' pupils contracted when they heard the bell. After the pairing of the sound of the bell with the presentation of a black square, pupil contraction occurred with just the sight of the square. In this entire conditioning study, the conditioned stimulus is (stimuli are) the ________.
A) bell and square
B) light and square
C) square
D) bell

Question

Quizplus · Accepted Answer

The conditioned stimulus is the stimulus that is initially neutral but becomes associated with the unconditioned stimulus through conditioning. In this case, both the bell and the square were initially neutral but became conditioned stimuli through their association with the light and each other.

In an Experiment, the Pupils of Subjects' Eyes Contracted When