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PTN 3198 | CAT Brain

Activity of a pyramidal tract projecting neuron (PTN) of the motor cortex during walking on the flat surface and horizontal ladders with crosspieces 18, 12 and 5 cm wide. Latent period of response to stimulation of the pyramidal tract was 0.9 ms; collision test was satisfied. The cell was activated by flexion of the contralateral shoulder, that is, elbow forward movement. This cell was recorded in track 22 of Cat 7 (see cortical map).

walking_864 (flat surface and ladder-5 walking):
     main data file, raw, Spike2;
     information file, Spike2;
main data file_spikes clustered_txt;
     selected channels for locom_cat3M_txt;

walking_865 (flat surface and ladder-18 walking):
     main data file, raw, Spike2;
     information file, Spike2

walking_866 (flat surface and ladder-12 walking):
     main data file, raw, Spike2;
     information file, Spike2

Images below illustrate some of the data content. Actual data are in the links above.

10 sec of all channels

Click on the image to enlarge. Vertical line indicates time shown in the following slide.

Zoom in onto the previous slide, 3 channels shown only

Click on the image to enlarge. Neuronal activity during 2 steps past gate 4 (on the ladder).

Irina clustering, PTN 3198 is on channel 11, decoded steps are on channel 3, decoded gates are on channel 12

Click on the image to enlarge. Channel 10 contains all the clusters that Spike2 recognized according to criteria given.

Zoom in onto 1 round of clustered file

Click on the image to enlarge.