Marcus Lewis Reviews “The Tolman-Eichenbaum Machine” Paper - February 15, 2021

Marcus Lewis reviews the paper “The Tolman-Eichenbaum Machine” by James Whittington, et al… He first connects and compares the paper to the grid cell module in Numenta’s “Locations in the Neocortex” paper. Marcus then gives a high-level summary of the paper and highlights two aspects - how grid cells and place cells interact, and how place cells can represent novel sensory-location pairs. The team then discusses the multiple grid cell modules and mechanisms presented in the paper.

“The Tolman-Eichenbaum Machine: Unifying Space and Relational Memory through Generalization in the Hippocampal Formation” by James Whittington, et al.: The Tolman-Eichenbaum Machine: Unifying Space and Relational Memory through Generalization in the Hippocampal Formation - ScienceDirect

Papers mentioned:
“Locations in the Neocortex: A Theory of Sensory Recognition Using Cortical Grid Cells” by Jeff Hawkins, et al.: Frontiers | Locations in the Neocortex: A Theory of Sensorimotor Object Recognition Using Cortical Grid Cells | Frontiers in Neural Circuits

“What is a Cognitive Map? Organizing Knowledge for Flexible Behavior” by Timothy Behrens, et al.: What Is a Cognitive Map? Organizing Knowledge for Flexible Behavior - ScienceDirect

“A Stable Hippocampal Representation of a Space Requires its Direct Experience” by Clifford Kentros, et al.: A stable hippocampal representation of a space requires its direct experience

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Great to see @FFiebig again. And great to hear he’s going to build a spiking network. I hope some of that may be published on YouTube. Or at least gets some discussion on the forum.

Terrific review @mrcslws. And thanks for sharing this @clai.

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The paper commented by @FFiebig (BTW, seems similar to the addresses in a memory bus, from LSB in dorsal to MSB in ventral :slight_smile: ).

imagen

[1] H. Stensola, T. Stensola, T. Solstad, K. FrØland, M. B. Moser, and E. I. Moser, “The entorhinal grid map is discretized,” Nature , vol. 492, no. 7427, pp. 72–78, 2012.

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