Increased Firing Irregularity as an Emergent Property of Neural-State Transition in Monkey Prefrontal Cortex
Figure 7
Changes in firing variability before and after transitions in neural- network models showing Hopf bifurcation.
Increases in LVR from the initial values are plotted for both excitatory (A) and inhibitory (B) neurons. Schematic illustrations for Hopf bifurcation are indicated at the bottom: solid lines: stable attractors; dotted lines: unstable repellers. 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.
