A population model of decision making.

<p>Neurons in the first cluster project to the neurons in the second cluster with synaptic weight <i>w</i><sub>1</sub>(<i>t</i>), while neurons in the second cluster project to neurons in the first cluster with synaptic weight <i>w</i><sub>2</sub>(<i>t</i>). Neurons receive external inputs <i>I</i><sub>1</sub>(<i>t</i>) and <i>I</i><sub>2</sub>(<i>t</i>), respectively. As this is a rate model, <i>I</i><sub>1</sub>(<i>t</i>), <i>I</i><sub>2</sub>(<i>t</i>) have a unit of [1/<i>s</i>]. In addition, both neuronal populations receive self inhibition with delays (dashed arrows with flat heads), <i>τ</i><sub>1</sub> and <i>τ</i><sub>2</sub> respectively. The dynamics of this system is described by <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0211885#pone.0211885.e002" target="_blank">Eq 2</a>.</p>