Figure 5—figure supplement 4. | On cross-frequency phase-phase coupling between theta and gamma oscillations in the hippocampus

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On cross-frequency phase-phase coupling between theta and gamma oscillations in the hippocampus

Figure 5—figure supplement 4.

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Federal University of Rio Grande do Norte, Brazil
Figure 5—figure supplement 4.
Download figureOpen in new tabFigure 5—figure supplement 4. Lack of evidence for theta-gamma phase-phase coupling in all hippocampal layers.

(Left) Example estimation of the anatomical location of a 16-channel silicon probe by the characteristic depth profile of sharp-wave ripples (inter-electrode distance = 100 μm). (Middle) Original and surrogate (Random Permutation/Single Run) distributions of Rn:m values computed between theta phase and the phase of three gamma sub-bands (1 s long epochs). Different rows show results for different layers. (Right) Distribution of original and surrogate Rn:m values computed for current-source density (CSD) signals (1 s long epochs) in three hippocampal layers: s. pyramidale (top), s. radiatum (middle), and s. lacunosum-moleculare (bottom). Notice no difference between original and surrogate values. Similar results were found in all animals.

DOI: http://dx.doi.org/10.7554/eLife.20515.017