Aresearcher interested in how changes in the cells of the hippocampus (a structure in the brain related to learning and memory) are related to memory formation would be most likely to identify as a(n) psychologist

The psychologist would most likely be a biological psychologist.

A biological psychologist is also often known as a behavioral neuroscientist or a biopsychologist. They study how behavior and mind are exhibited in the body, especially the brain. To pursue this profession, an individual requires high educational background – often times a PhD. They often work in laboratory settings in various industries, from hospitals to even aquariums.

do your own work

you really need to do your own work and stop cheating