title: Are All Spatial Reference Frames Egocentric? Reinterpreting Evidence for Allocentric, Object-Centered, or World-Centered Reference Frames.
abstract: The use and neural representation of egocentric spatial reference frames is well-documented. In contrast, whether the brain represents spatial relationships between objects in allocentric, object-centered, or world-centered coordinates is debated. Here, I review behavioral, neuropsychological, neurophysiological (neuronal recording), and neuroimaging evidence for and against allocentric, object-centered, or world-centered spatial reference frames. Based on theoretical considerations, simulations, and empirical findings from spatial navigation, spatial judgments, and goal-directed movements, I suggest that all spatial representations may in fact be dependent on egocentric reference frames.
authors.affiliation: Adaptive Behavior and Cognition, Max Planck Institute for Human Development Berlin, Germany ; Berlin School of Mind and Brain, Humboldt Universität zu Berlin Berlin, Germany.
authors.forename: Flavia
authors.initials: F
authors.lastname: Filimon
keywords: allocentric; cognitive map; egocentric; object-centered; parietal sensorimotor transformations; perception and action; place cells; spatial reference frames