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Transformation of Context-dependent Sensory Dynamics into Motor Behavior

Figure 7

Principal component analysis of the sensory-motor transformation.

We have selected three different types (A–C) of hunting episodes according to the duration of specific patterns of sequential activations among the SRCs. A total of six hunting episodes are shown in this figure, two examples for each kind. The top panels display the time intervals in which each neuron exceeds a threshold of . Different colors are used to indicate each neuron. The episodes labeled as type A correspond to long activations of neurons 1 and 4 (red and magenta, respectively). The episodes labeled as type B correspond to sequential activations of similar length in all neurons, while type C episodes correspond to long activations of SRCs 2, 3 and 5 (green, blue and cyan). The bottom panels display the first three principal components for the activity of the six receptor cells (left plot) and the four motoneurons in the wing CPG (right plot). The PCA shows that a similar sequential activity in the sensory network during hunting (different hunting episodes of the same type) evokes similar rhythmic activity in the motor system.

doi: https://doi.org/10.1371/journal.pcbi.1002908.g007