Extracting temporal relationships between weakly coupled peptidergic and motoneuronal signaling: Application to Drosophila ecdysis behavior
Fig 4
Coordination between motoneurons.
(a) Correlation coefficients between left and right motoneuron time series, calculated over a sliding window of 100 s. Time series for left (“MN L”) and right (“MN R”) motoneuronal regions are shown in orange and purple, respectively, and the Pearson’s correlation coefficient (“r”) of the sliding window is shown in black. Gray horizontal lines indicate correlations of −1, 0 and +1. (b) Example of the method used to compute the mean phase difference of an experimental recording. Blue and green points represent the phase difference at every instant of the experiment; their amplitude is scaled to the mean amplitude of the oscillations of the left and right region. The red point represents the mean vector, whose phase represents the mean phase difference of the experiment. (c) Mean phase difference for 9 experiments (blue) and mean for all experiments (red).