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. 2016 Feb 17;10:13. doi: 10.3389/fncom.2016.00013

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Copyright © 2016 Mulas, Waniek and Conradt.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The activation of the stabilization mechanism prevents the drift of spatial grid patterns. (A) Spiking activity of a simulated grid cell without stabilization mechanism while a simulated robot explores a circular arena for 120 s (spiking activity in red, simulated trajectory in gray). (B) Spiking activity of the same cell of panel (A) after 10 min (spiking activity in blue). (C) The activities shown in panels (A,B) Do not overlap due to the accumulation of path integration errors. (D) Spiking activity of a simulated grid cell while a simulated robot explores a circular arena for 120 s with the activation of the stabilization mechanism. (E) Spiking activity of the same cell of panel (D) after 10 min. (F) The activities shown in panels (D,E) Overlap due to the Hebbian plasticity-based stabilization mechanism.