Summary: Neurocomputing 5860 (2004) 675682
Rapid response of head direction cells to
reorienting visual cues: a computational model
T. Degrisa , O. Sigauda , S.I. Wienerb , A. Arleob;
aLIP6, AnimatLab, 8 rue du Capitaine Scott, Paris 75015, France
bLab. de Physiologie de la Perception et de l'Action, CNRS-CollÂege de France, 11 place M. Berthelot,
Paris 75005, France
In this model of the head direction cells in the limbic areas of the rat brain, the intrinsic
dynamics of the system is determined by a continuous attractor network of spiking neurons.
Synaptic excitation is mediated by NMDA and AMPA formal receptors, while inhibition de-
pends on GABA receptors. We focus on the temporal aspects of state transitions of the system
following reorientation of visual cues. The model reproduces the short latencies (80 ms) ob-
served in recordings of the anterodorsal thalamic nucleus. The model makes an experimentally
testable prediction concerning the state update dynamics as a function of the magnitude of the
c 2004 Elsevier B.V. All rights reserved.
Keywords: Head direction cells; Continuous attractor networks; Spiking neurons