Answer: The correct answer is 1- Positive 2- Negative.
Explanation: Systematic desensitization is a type of behavior therapy in which a person is exposed to a certain object or stimuli (Spider, cockroach) that initially elicits a negative response (fear, anxiety).
Then, a positive response is gradually conditioned to that stimulus, (such as being calm in consequence of breathing exercises) to the point that the initial stimuli that elicited a highly negative response, no longer does.
In conclusion:
In systematic desensitization, a POSITIVE response is gradually conditioned to stimuli that initially elicited a highly NEGATIVE response.