Four models of vector navigation in large scale 2D space using grid cell representations of location are included:
(1) The 'Distance Cell' model, which directly decodes absolute start and goal locations in allocentric space from rate-coded grid cell representations before computing the displacement between them;
(2) The 'Rate-coded Vector Cell' model, which directly decodes the displacement between start and goal locations from rate-coded grid cell representations;
(3) The 'Phase-coded Vector Cell' model, which directly decodes the displacement between start and goal locations from the temporally-coded grid cell representations provided by phase precession;
(4) The 'Linear Look-ahead' model, which uses a directed search through grid cell representations, initiated at the start location and then moving along a specific axis at a constant speed, to compute the displacement between start and goal locations.
Reference:
1 .
Bush D, Barry C, Manson D, Burgess N (2015) Using Grid Cells for Navigation. Neuron 87:507-20 [PubMed]
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