tensorpac.methods.modulation_index

tensorpac.methods.modulation_index(pha, amp, n_bins=18)[source]

Tensor-based Modulation index (MI).

The modulation index is obtained using the Kullback Leibler Distance which measures how much the distribution of binned amplitude differs from a uniform distribution.

Parameters
pha, amparray_like

Respectively the arrays of phases of shape (n_pha, …, n_times) and the array of amplitudes of shape (n_amp, …, n_times).

n_binsint | 18

Number of bins to binarize the amplitude according to phase intervals

Returns
pacarray_like

Array of phase amplitude coupling of shape (n_amp, n_pha, …)

References

Tort et al. 2010 [11]