Imagine a doctor working with a patient who has amnesia. Next, suppose the doctor puts a thumbtack in their hand before shaking the patient's hand, giving the patient a light "stab" or "prick" with the thumbtack. The doctor introduces themselves again the next day and again sticks out their hand. This time, however, the patient will not shake their hand. The patient doesn't remember meeting the doctor, and they can't explain why the don't want to shake the doctor's hand, but they say they have a bad feeling about that doctor. What does this show us?
• The patient was unable to create any new long-term memories.
• The patient was unable to create an implicit memory for the event of meeting the doctor, but was still able to create an explicit memory.
• The patient was unable to use their short-term memory at all.
• The patient was unable to create an explicit memory for the event of meeting the doctor, but was still able to create an implicit memory.