A Dendritic Mechanism for Decoding Traveling Waves: Principles and Applications to Motor Cortex

doi:10.1371/journal.pcbi.1003260

A Dendritic Mechanism for Decoding Traveling Waves: Principles and Applications to Motor Cortex

Figure 9

The effect of wave orientation on the output of the descending motor system.

Each column presents the responses of the descending motor system for pyramidal neurons with a given dendritic orientation ( and ) relative to the cortical pattern. (A) Orientation of the dendritic kernels. The cortical pattern is the same in all cases. (B) Firing rate distribution of the pyramidal tract neurons. (C) Firing rate distribution of the motor neurons. (D) Time course of the simulated EMG. (E) Magnitude squared coherence between LFP and EMG. Light gray lines represent individual trials (n = 100). Black line shows the trial average. In red, average MEG-EMG coherence in 16 subjects while they perform a precision grip task at different force levels (2.0 N, 1.65 N, 0.95 N, 0.0 N). Dashed horizontal line indicates the 95% confidence level for the coherence distribution in each frequency bin. Peaks above that line are statistically significant at p = 0.05.

doi: https://doi.org/10.1371/journal.pcbi.1003260.g009