Question

17. In a classical conditioning (implicit memory) paradigm, repeated shocks to Aplysia tail

result in progressively longer duration __________________. HINT:

http://neuroscience.uth.tmc.edu/s4/chapter07.html

.

A. tail extension

B. head extension

C. siphon withdrawal

D. siphon extension

E. tail and siphon extensions

18. _________________ is released from an interneuron that makes an axon-axon

synapse onto the sensory neuron from the skin of the tail.

A. serotonin

B. acetylcholine

C. dopamine

D. glutamate

E. GABA

19. In the experimental paradigm of the gill withdrawal to electric shock, the shock to

the tail represents the _____________.

A. unconditioned response UR

B. unconditioned stimulus US

C. conditioned response CR

D. conditioned stimulus CS