The term dorsomedial entorhinal cortex (ENTdm) refers to the part of the histologically defined entorhinal area (ENT) that underlies the ambient gyrus (ABG) in the human ( Insausti-2012 ). Functionally, in the human, it is part of perirhinal ectorhinal cortex (PEC) ( Glasser-2016 ). The boundaries of the structurally defined entorhinal area and functionally defined entorhinal cortex do not perfectly coincide. Nevertheless, they are so close that the terms are used interchangeably as synonyms. Internally the ENT is subdivided differently in different species, and exact substructure-function correllations are not clear. One can, however, assume with reasonable confidence that the equivalent of the human ENTdm in other species, including rodents, is functionally, "a...neural hub...for encoding spatial and memory information. Neurons in this region (such as grid cells and border cells) act like an internal GPS, establishing a cognitive map of the environment....frequently studied in the context of navigation, memory consolidation, and Alzheimer's disease." ( Google AI queried for 'scientific articles that use the term dorsomedial entorhinal cortex'). Accessed 18 Jul 2026.