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A proposed attention-based model for spatial memory formation and retrieval

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Abstract

Animals use sensory information and memory to build internal representations of space. It has been shown that such representations extend beyond the geometry of an environment and also encode rich sensory experiences usually referred to as context. In mammals, contextual inputs from sensory cortices appear to be converging on the hippocampus as a key area for spatial representations and memory. How metric and external sensory inputs (e.g., visual context) are combined into a coherent and stable place representation is not fully understood. Here, I review the evidence of attentional effects along the ventral visual pathway and in the medial temporal lobe and propose an attention-based model for the integration of visual context in spatial representations. I further suggest that attention-based retrieval of spatial memories supports a feedback mechanism that allows consolidation of old memories and new sensory experiences related to the same place, thereby contributing to the stability of spatial representations. The resulting model has the potential to generate new hypotheses to explain complex responses of spatial cells such as place cells in the hippocampus.

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Notes

  1. Here VSWM refers to the combined system of visual and spatial working memories, whereas visual short-term memory (VSTM) in the next paragraph refers more specifically to short-term storage of visual information as part of the broader working memory system.

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The author would like to thank the anonymous reviewers for their valuable contributions.

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Correspondence to Çağatay Soyer.

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Editor: Benjamin Straube (University of Marburg); Reviewers: Kate Jeffery (University College London) and a second researcher who prefers to remain anonymous.

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Soyer, Ç. A proposed attention-based model for spatial memory formation and retrieval. Cogn Process 24, 199–212 (2023). https://doi.org/10.1007/s10339-022-01121-1

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  • DOI: https://doi.org/10.1007/s10339-022-01121-1

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