[Mne_analysis] envelope correlation

Vivek Sharma vivek.sharma1510 at gmail.com
Wed Jul 31 02:52:54 EDT 2019
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Thanks Denis.

On Wed, Jul 31, 2019 at 12:09 PM Denis A. Engemann <
denis-alexander.engemann at inria.fr> wrote:

>         External Email - Use Caution
>
> Hi Vivek,
>
> No this is not  convenient as the PSD function gives you a power spectrum
> and not a time course.
>
> You really want  to use apply_inverse_epochs:
> https://mne.tools/dev/generated/mne.minimum_norm.apply_inverse_epochs.html#mne.minimum_norm.apply_inverse_epochs
>
> We then compute the analytic signal
> https://en.wikipedia.org/wiki/Analytic_signal#Envelope_and_instantaneous_phase
> using the Hilbert transform.
>
> If you do not do that by hand, the envelope_correlation function will take
> care of it internally as in this example:
>
> https://mne.tools/dev/auto_examples/connectivity/plot_mne_inverse_envelope_correlation.html#sphx-glr-auto-examples-connectivity-plot-mne-inverse-envelope-correlation-py
>
> Best regards,
> Denis
>
> > On Jul 31, 2019, at 8:24 AM, Vivek Sharma <vivek.sharma1510 at gmail.com>
> wrote:
> >
> >         External Email - Use Caution
> >
> >
> > Hi,
> > Can we compute envelope correlation using source data obtained from
> using mne.minimum_norm.compute_source_psd function.
> >
> > On Tue, Jul 16, 2019 at 10:32 PM Vivek Sharma <
> vivek.sharma1510 at gmail.com> wrote:
> > I mean how can I have this.
> > If I have sources calculated using "
> https://martinos.org/mne/stable/auto_examples/datasets/plot_opm_rest_data.html#sphx-glr-auto-examples-datasets-plot-opm-rest-data-py"
> this example. So how should I proceed to compute envelope correlation in
> this calculated source space.
> >
> > On Tue, Jul 16, 2019 at 9:47 PM Alexandre Gramfort <
> alexandre.gramfort at inria.fr> wrote:
> >         External Email - Use Caution
> >
> > then you have your answer. It is written:
> >
> > data: array_like, shape=(n_epochs, n_signals, n_times)
> >
> > so you miss one dimension
> >
> > A
> >
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> >
> > --
> > Vivek Sharma
> >
> >
> > --
> > Vivek Sharma
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-- 
Vivek Sharma
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