Which of the following lines of evidence does NOT confirm that LTP is a physical basis for memory? a. Rats given a drug that blocked LTP learned a maze with few mistakes.
b. Drugs that mimic what happens during learning have been found to increase LTP.
c. Drugs that block LTP have been found to interfere with learning.
d. Rats given a drug that enhanced LTP learned a maze with half the usual number of mistakes.