2023
DOI: 10.1016/j.isci.2023.108102
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Coherently remapping toroidal cells but not Grid cells are responsible for path integration in virtual agents

Vemund Schøyen,
Markus Borud Pettersen,
Konstantin Holzhausen
et al.
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Cited by 8 publications
(7 citation statements)
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References 57 publications
(106 reference statements)
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“…Pruning velocity inputs further allowed us to disentangle the contributions of different cell types to path integration. By comparing the representations of a pruned network to a non-pruned network, we could directly ascertain that path integration was not critically dependent on grid cells, but seemingly rather on band-type units, echoing other recent findings [Schøyen et al, 2023]. The inverse correlation between the contribution to path integration and the mean sample grid score further reinforces the notion that grid cells might not be as crucial for path integration as previously thought.…”
Section: Resultssupporting
confidence: 82%
See 1 more Smart Citation
“…Pruning velocity inputs further allowed us to disentangle the contributions of different cell types to path integration. By comparing the representations of a pruned network to a non-pruned network, we could directly ascertain that path integration was not critically dependent on grid cells, but seemingly rather on band-type units, echoing other recent findings [Schøyen et al, 2023]. The inverse correlation between the contribution to path integration and the mean sample grid score further reinforces the notion that grid cells might not be as crucial for path integration as previously thought.…”
Section: Resultssupporting
confidence: 82%
“…Recently, it has also been shown that grid-like representations emerge in neural networks trained to path integrate [Cueva and Wei, 2018, Banino et al, 2018, Sorscher et al, 2022, Whittington et al, 2020, Xu et al, 2022, Dorrell et al, 2022, Schaeffer et al, 2023, which has been taken as evidence for grid cells performing path integration. However, this argument is based on correlation; under interventional cell ablations grid cells are as important for path integration as randomly selected cells [Nayebi et al, 2021] while band cells are significantly more important [Schøyen et al, 2023]. Moreover, these models are typically complex, featuring different architectures and activation functions, interacting label cell types (e.g.…”
Section: Introductionmentioning
confidence: 99%
“…4d) and e)), further hinting at different functional roles. That band cells contribute to path integration, has also been found in other neural network models [Schøyen et al, 2023]. As with the feedforward model, recurrent responses accurately capture the desired similarity structure (Fig.…”
Section: Recurrent Network Learn Place-and Band-like Representationssupporting
confidence: 69%
“…As our model only learns border-type recurrent representations, our findings raise question concerning the necessity of grid cells for path integration, as well as the causal relationship between place cells and grid cells. That grid cells may not be required to do path integration has also been shown in other recent normative models [36].…”
Section: Discussionmentioning
confidence: 59%
“…To the best of our knowledge, however, no normative models have seriously tackled the problem of place cell formation and remapping. Only some address remapping, but do so for other cell types [22], [35], [36].…”
Section: Introductionmentioning
confidence: 99%

Decoding the Cognitive map: Learning place cells and remapping

Pettersen,
Schøyen,
Malthe-Sørenssen
et al. 2024
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