Fig. 5.

Brute-force parameter search for the adaptation time constant ${\mathit{\tau }}_q$ and top-down synaptic projections from FEF to SC layers $w_n^{\mathrm{F}-\mathrm{S}}$. Single AdEx neurons configured with SC parameters are driven by the most active neuron in the FEF population (Eq. 8). a Total number of spikes in the burst. b Peak firing rate of the burst profile. White points: the neurons emit 20 spikes in their burst, and the contours show the peak firing rates. Black lines depict the parameter values used for SC neurons in the network simulations. They are calculated by a second-order polynomial regression of ${\mathit{\tau }}_q$ and $w_n^{\mathrm{F}-\mathrm{S}}$ for 20 spikes in burst. Behavior of AdEx neuron at points ${}^{△,▿,◃,▹}$ and ${}^{\diamond }$ are illustrated in Fig. 4a, b