Continuous Attractor Network Model for Conjunctive Position-by-Velocity Tuning of Grid Cells
Figure 2
Depending on the parameters, the network operates in different regimes.
(A) The amplitude instability (A) is separated from the homogeneous regime (H) and localized activity regimes (S and T) by Eq. 7 and 12. Localized regimes are separated from the homogeneous regime by Eq. 8. The regime of traveling bumps (T) is separated from the regime of static bumps (S) by Eq. 35; (B) An example of the network state in localized activity regime (). (C) An example of traveling bumps (
); (D–E) Fixed point solutions of order parameters
and
for various
. The square markers correspond to the order parameters of the examples shown in (A). With larger
, the bumps in the network are less tilted (larger
) and smaller (smaller
).