Figure 7.

The selected θ/β-γ pattern was not related to whisker motor responses. A, Experimental design. The electromyographic (EMG) activity of whisker muscles and the LFPs generated in the PrL cortex were recorded simultaneously in alert behaving rats during operant conditioning sessions in which the iPad was triggered by the θ/β-γ pattern. B, Averaged (n = 175 traces collected from 3 animals) EMG recordings collected from whisker muscles and LFPs collected from the PrL cortex. The average was triggered when the summed power of θ + β + γ bands reached the selected minimum value. Although the averaged EMG activity of whisker muscles presented a minimum value during the presence of the selected pattern, no linear relationship was observed between the two variables (r = 0.073; degrees of freedom, 348; p = 0.336, Pearson's r). C–E, Three representative examples of LFPs recorded during the presence of the selected pattern in the PrL cortex accompanied by different levels of activity in whisker muscles. These results suggest that the two neural and muscle activities were not correlated.