Figure 5. Standard Deviation of PN Spike Phases Measured over Repeated Stimulus Presentations.
(A) Standard deviation (20 trials) is shown as a function of oscillatory cycle number for 90 PNs. Zero deviation (black) corresponded to precise phase-locking of PN spikes with field oscillations. Maximal deviation (white) corresponded to complete desynchronization of PN spikes with field oscillations. White also indicates silent PNs.
(B) Standard deviation of PN spike phases (shown in Figures 4A and 4B) plotted against the total number of LN spikes in all presynaptic LNs. The data for four PNs and two stimuli are plotted with different symbols. Straight line is linear regression.