Dual Dimensionality Reduction Reveals Independent Encoding of Motor Features in a Muscle Synergy for Insect Flight Control
Fig 2
Motor-spike-triggered ensembles and turning deciles.
We aligned the torque waveforms to either the zero phase crossing (A) or the timing of the right DLM’s spike (B). We then divided the data into deciles ordered by average torque. The decile averages (C, D) and the interpolated contour surfaces (below) from two animals (“J” and “L”) show the range of torque variation within wingstrokes. Deciles are ordered from the greatest leftward (”L”) to rightward (”R”) torque. Grey transects highlight distinctive features mentioned in the text. Because wingstrokes are triggered on the right muscle’s spikes, we do not expect these patterns to be left-right symmetric.