Bounded Invariance and the Formation of Place Fields

Part of Advances in Neural Information Processing Systems 16 (NIPS 2003)

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Reto Wyss, Paul Verschure


One current explanation of the view independent representation of space by the place-cells of the hippocampus is that they arise out of the summation of view dependent Gaussians. This proposal as- sumes that visual representations show bounded invariance. Here we investigate whether a recently proposed visual encoding scheme called the temporal population code can provide such representa- tions. Our analysis is based on the behavior of a simulated robot in a virtual environment containing speci(cid:12)c visual cues. Our re- sults show that the temporal population code provides a represen- tational substrate that can naturally account for the formation of place (cid:12)elds.