[Eeglablist] Time-frequency

[Blaž Hren]

Dear  Miklos Kecskes,

you need to segment your data there's no way around it.

Perhaps this link will be useful:

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.fieldtriptoolbox.org_faq_how-5Fcan-5Fi-5Fdo-5Ftime-2Dfrequency-5Fanalysis-5Fon-5Fcontinuous-5Fdata_&d=DwIFaQ&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=kYIqOg-O4Ne3-LqU-XDLLFugDAM0s5Oo1h70K-3yqUW8W9KABjt6TO7k37iKsTlW&s=-q4_EZ7AtYsNYd557ZnOunSPxRdCdoUrvF47b7albho&e= 

Best


V V sre., 1. dec. 2021 ob 18:07 je oseba Dr. Kecskés Miklós via eeglablist <
eeglablist at sccn.ucsd.edu> napisala:

> Dear All,
>
> I'm relatively new to EEGlab and I would have a question about time
> frequency decomposition. I would like to plot time frequency heat map of a
> continuous (5-10 min) LFP data, recorded from mouse hippocampus during
> epileptic seizure. I found the tutorial in the eeglab website,(
> https://urldefense.proofpoint.com/v2/url?u=https-3A__eeglab.org_tutorials_08-5FPlot-5Fdata_Time-2DFrequency-5Fdecomposition.html&d=DwIFAw&c=-35OiAkTchMrZOngvJPOeA&r=kB5f6DjXkuOQpM1bq5OFA9kKiQyNm1p6x6e36h3EglE&m=6JW0fnq-YW1cMag5nFbmoiGuDq3CxAWGCsRo7Mq-iH18BqGHlK1tJwpQ6IFytY6U&s=CIKPkj6m2fALcaGW0WL0BR5-jDNKFWfj2UGuKX4zp5E&e=
> ) but that one is for epoched data however my recordings are continuous LFP
> signals from epileptic mice. If I do exactly the same as they describe it
> in the tutorial I get a time frequency map but that map obviously not
> representing my recordings. Somewhere in this 5-10 min recordings I have
> electrographic seizure with high amplitude high frequency oscillations
> however the heat map looks rather homogeneous during the entire time. I
> tried to play around with the settings, but nothing really helped. Do you
> have any suggestion how to solve this issue?
>
> Thanks in advance:
>
> Miklos Kecskes Ph.D.
> Institute of Physiology
> Medical School, University of Pécs
> Pécs, Szigeti Street 12.
> Szentágothai Research Centre
> Pécs, Ifjúság street 20.
> H-7624, Hungary
>
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