When the sea snail Aplysia acquires a new memory of a classically conditioned gill-withdrawal reflex, which of the following does NOT occur?
A) There is an increase in the amount of neurotransmitters produced by the neurons involved in the memory circuit.
B) There is an increase in the number of interconnecting branches between the neurons involved in the memory circuit.
C) There is an increase in the number of neurons involved in the memory circuit.
D) There is an increase in the number of synapses between the neurons involved in the memory circuit.

Question

Quizplus · Accepted Answer

There is no evidence that the sea snail Aplysia acquires a new memory by increasing the number of neurons involved in the memory circuit. The increase in synaptic strength and the number of branches between the neurons involved in the memory circuit, as well as an increase in the amount of neurotransmitters produced by the neurons, are all associated with memory formation in Aplysia.

When the Sea Snail Aplysia Acquires a New Memory of a Classically