Increased Firing Irregularity as an Emergent Property of Neural-State Transition in Monkey Prefrontal Cortex
Figure 6
Changes in firing variability before and after transitions in neural- network models showing saddle-node bifurcation.
Increases in LVR from the initial values are plotted for both excitatory (A) and inhibitory (B) neurons. Schematic illustrations for saddle-node bifurcation are indicated at the bottom: solid lines: stable attractors; dotted lines: unstable saddles. Examples of firing for each case are shown. Also shown are corresponding firing patterns obtained under the without-noise conditions for comparison. Error bars, SEM.
