Diversity and Noise Effects in a Model of Homeostatic Regulation of the Sleep-Wake Cycle
Figure 10
Effect of diversity in the synapses.
Comparison between the responses of the heterogeneous system (left column) and homogeneous system (right column) in the first part of the time period during the action of the
long current pulse starting at
and ending at
. (A) and (B) (top panels). External current pulse. (C) and (D) (central panels). Behavior of some representative glutamate activation variables of the heterogeneous system,
for
(panel (C)), and the (common) time dependence
of the homogeneous system activation variables (panel (D), black continuous curve); in the latter figure also the average value
of the heterogeneous system (dashed grey curve) is shown for comparison. (E) and (F) (bottom panels). Raster plots of all the neurons of the system. See text for further details.