The region of the spine where the membrane is thickened and contains scaffolding proteins and receptors is called the _______.

Calcium is a second messenger.

Ionotropic receptors protrude outside and inside the cell.

It is generally agreed that the brain works like a warehouse to store items of information.

The ionic composition of the intracellular and extracellular fluids become more alike when the neuron depolarizes.

Competitive antagonists, such as APV, can replace a ligand and cause conformational changes in the receptor.

Which phenomenon/phenomena did Ebbinghaus observe? (Select all that apply.)

Hermann Ebbinghaus invented _______as a tool to study “pure memory.”

William James proposed that memories are established in three stages. Which of the following is the correct order? (Select all that apply.)

What important insight was implied by Ribot’s hypothesis that memories dissolve in stages?