Unlike the excitatory conditioning of the tone in the control condition of Exercise 10, the excitatory conditioning of the tone in the experimental condition (Stage 2)
a. involved pairing the tone with shock.
b. produced a steady increase in the CS response strength of the tone.
c. progressed from a negative value of CS response strength to a positive value.
d. resulted in a decrease in the movement ratio across trials.
c. progressed from a negative value of CS response strength to a positive value.
Answer feedback: The pattern of excitatory conditioning of the tone was much the same in the experimental and control conditions. The main difference was that, in the experimental condition, the CS response strength of the tone began at a negative value and became positive as the trials proceeded (that is, the prior inhibitory conditioning was, in the textbook’s term, “unlearned”).
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