The ________ is an assumed electrical circuit that corresponds to a memory trace.

A) hippocampus
B) engram
C) cerebellum
D) thalamus

The term "engram" refers to the hypothetical concept of a physical representation of a memory trace in the brain, often described as an electrical circuit. The hippocampus is a brain structure that is involved in memory formation and retrieval, but it is not the same as the engram itself. The cerebellum and thalamus are also brain structures, but they are not typically associated with memory formation or the concept of an engram.