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rachel has a phobia of spiders. she is presented with a picture of a spider in a safe environment until she no longer shows a fear response. then she is shown a live spider until she shows no fear response. this is a process of extinction of a conditioned fear response to a spider. however, a week later she shows fear again when she sees the picture of a spider. this is an example of____

User Shmee
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Final answer:

Rachel is experiencing spontaneous recovery, where an extinguished conditioned fear response to a spider has resurfaced after a period of no exposure.

Step-by-step explanation:

The phenomenon that Rachel is experiencing is called spontaneous recovery. This term refers to the return of a previously extinguished conditioned response after a period of no exposure to the conditioned stimulus. In Rachel's case, the fear response to a picture of a spider had been extinguished through exposure therapy, but after a week without exposure, the fear response resurfaced when she saw the picture again.

Extinction in classical conditioning occurs when the unconditioned stimulus (UCS), which naturally produces a fear response, is no longer paired with the conditioned stimulus (CS), which is the picture of a spider in this case. Over time, this leads to a decrease in the fear response. However, this process is not always permanent, and the previously extinguished response can return, demonstrating spontaneous recovery. This is a common occurrence in conditioning where a response can reappear after a time without exposure to the conditioned stimulus, despite the response having been previously diminished through extinction.

User Konsolas
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