Increased Firing Irregularity as an Emergent Property of Neural-State Transition in Monkey Prefrontal Cortex
Figure 5
Changes in firing variability before and after transitions in neural- network models showing pitchfork bifurcation.
Increases in LVR from the initial values are plotted for both excitatory (A) and inhibitory (B) neurons. Schematic illustrations for pitchfork 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.
