Answer to Question 1
Answer: Declarative memories are those that are available for conscious recollection, whereas nondeclarative memories are automatic and cannot be described using words. The latter include perceptual learning, motor learning, and stimulus-response learning. Hippocampal damage impairs declarative memory but not nondeclarative memory.
Answer to Question 2
Answer: A stimulating electrode would be inserted into the axons of the perforant path and a recording electrode inserted into the dentate gyrus. A population EPSP is recorded from the dentate cells to a single electrical pulse of the path. A burst of high-frequency stimulation is given and followed periodically by a single pulse. LTP is indicated by an increase in the size of the subsequent EPSPs following the burst treatment.