Gated transformations from egocentric to allocentric reference frames involving retrosplenial cortex, entorhinal cortex, and hippocampus
Year: 2023
Type: review
Abstract: This paper reviews the recent experimental finding that neurons in behaving rodents show egocentric coding of the environment in a number of structures associated with the hippocampus. Many animals generating behavior on the basis of sensory input must deal with the transformation of coordinates from the egocentric position of sensory input relative to the animal, into an allocentric framework concerning the position of multiple goals and objects relative to each other in the environment. Neurons in retrosplenial cortex show egocentric coding of the position of boundaries in relation to an animal. These neuronal responses are discussed in relation to existing models of the transformation from egocentric to allocentric coordinates using gain fields and a new model proposing transformations of phase coding that differ from current models. The same type of transformations could allow hierarchical representations of complex scenes. The responses in rodents are also discussed in comparison to work on coordinate transformations in humans and non-human primates.
Source: Hippocampus
DOI: 10.1002/hipo.23513
Institution: Boston University
Language: English
Topic: Memory and Neural Mechanisms
Subfield: Cognitive Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: green
Awards: G1510251563, G1540236520, Retrosplenial Cortex Interactions with Entorhinal Cortex and the Visual Anchoring of Spatial Representations, G1913505520, G2140357557, G2200041947, G3024551116, G3118242451, G3327989195, G3631731549, Retrosplenial Cortex Circuit Interactions Supporting Spatial Cognition and Memory, G443177229, G4504108201, Neuromodulation and Cortical Memory Function, G5972442391, Comparative Cognition and Hippocampal Function, Egocentric and Allocentric Spatial Coding in Cortex, G8876996369, G8929337198, G9000066050
OpenAlex ID: W4322758980