The paper presents a neural model of spatial memory and imagery, integrating neuronal, systems, and behavioral data. The model addresses the relationships between long-term and short-term memory, as well as between egocentric and allocentric representations. Long-term spatial memory is modeled as attractor dynamics within medial-temporal allocentric representations, while short-term memory is modeled as egocentric parietal representations driven by perception, retrieval, and imagery. The translation between egocentric and allocentric representations is mediated by posterior parietal and retrosplenial areas, utilizing head direction representations in Papez’s circuit. The model demonstrates how hippocampus effectively indexes information by real or imagined location, and how Papez’s circuit translates to imagery or from perception according to the direction of view. Motor efference modulation allows for "spatial updating" of representations, while prefrontal simulated motor efference enables mental exploration. The theta rhythm organizes the alternating temporoparietal flows of information. Simulations show the retrieval and updating of familiar spatial scenes, hemispatial neglect in memory, and the effects of lesioned head direction representations and conflicting visual and idiothetic inputs on hippocampal place cell firing.The paper presents a neural model of spatial memory and imagery, integrating neuronal, systems, and behavioral data. The model addresses the relationships between long-term and short-term memory, as well as between egocentric and allocentric representations. Long-term spatial memory is modeled as attractor dynamics within medial-temporal allocentric representations, while short-term memory is modeled as egocentric parietal representations driven by perception, retrieval, and imagery. The translation between egocentric and allocentric representations is mediated by posterior parietal and retrosplenial areas, utilizing head direction representations in Papez’s circuit. The model demonstrates how hippocampus effectively indexes information by real or imagined location, and how Papez’s circuit translates to imagery or from perception according to the direction of view. Motor efference modulation allows for "spatial updating" of representations, while prefrontal simulated motor efference enables mental exploration. The theta rhythm organizes the alternating temporoparietal flows of information. Simulations show the retrieval and updating of familiar spatial scenes, hemispatial neglect in memory, and the effects of lesioned head direction representations and conflicting visual and idiothetic inputs on hippocampal place cell firing.