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. 2009 Mar 27;5(3):e1000328. doi: 10.1371/journal.pcbi.1000328

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Blomquist et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Phase-plane analysis of recurrent thalamocortical model in Eqs. (4–5) for fitted model parameters for experiment 1, cf. Table 1. Upper panels show the synaptic drive from thalamus and the firing rate for the weakest (; left) and strongest (; right) stimuli. The filled dots in the two upper panels show the points in time, for and for at which the network states are shown in the two lower panels. In each of the phase plots (five for each of the stimuli) the instantaneous excitatory (black) and inhibitory (blue) nullclines are shown, i.e., the nullclines obtained with a constant thalamic synaptic drive equal to the instantaneous value for and for . The network's activity is indicated by the black response curve, where the head of the curve marks the network's current state, and the tail represents prior states.

Inline graphic — Phase-plane analysis of recurrent thalamocortical model in Eqs. (4–5) for fitted model parameters for experiment 1, cf. Table 1. Upper panels show the synaptic drive from thalamus and the firing rate for the weakest (; left) and strongest (; right) stimuli. The filled dots in the two upper panels show the points in time, for and for at which the network states are shown in the two lower panels. In each of the phase plots (five for each of the stimuli) the instantaneous excitatory (black) and inhibitory (blue) nullclines are shown, i.e., the nullclines obtained with a constant thalamic synaptic drive equal to the instantaneous value for and for . The network's activity is indicated by the black response curve, where the head of the curve marks the network's current state, and the tail represents prior states.