[Eeglablist] Infant EEG signal preprocessing for frequency analysis

[Velu Prabhakar Kumaravel]

Dear Sahura,

The standard adult preprocessing pipelines might not be optimal for infant
EEG for a wide range of reasons.

Following are the preprocessing pipelines that I know of for infant EEG in
the order of publishing year:

1) HAPPE
<https://urldefense.com/v3/__https://www.frontiersin.org/articles/10.3389/fnins.2018.00097/full__;!!Mih3wA!H9Um50QoXB9aJPm48n9DEtAoPHS2BWBlF9blH6YwlJWuDRTFeUF0e341NeDu0K9Ui37MI8qXb7kpMGsW2hbXGoQt0w2eEpUB$ > (2018)
2) MADE  <https://urldefense.com/v3/__https://onlinelibrary.wiley.com/doi/epdf/10.1111/psyp.13580__;!!Mih3wA!H9Um50QoXB9aJPm48n9DEtAoPHS2BWBlF9blH6YwlJWuDRTFeUF0e341NeDu0K9Ui37MI8qXb7kpMGsW2hbXGoQt06KXRj6D$ >
 (2020)
3) APICE
<https://urldefense.com/v3/__https://www.sciencedirect.com/science/article/pii/S1878929322000214__;!!Mih3wA!H9Um50QoXB9aJPm48n9DEtAoPHS2BWBlF9blH6YwlJWuDRTFeUF0e341NeDu0K9Ui37MI8qXb7kpMGsW2hbXGoQt04iab3DX$ >(2022)
4) NEAR
<https://urldefense.com/v3/__https://www.sciencedirect.com/science/article/pii/S1878929322000123__;!!Mih3wA!H9Um50QoXB9aJPm48n9DEtAoPHS2BWBlF9blH6YwlJWuDRTFeUF0e341NeDu0K9Ui37MI8qXb7kpMGsW2hbXGoQt0xd-2MvM$ >(2022)

With your precious dataset, you could make a preliminary analysis to
compare the pipelines to see which works best for you. Not sure of APICE,
but for all other pipelines, EEGLAB-compatible source code is available
online.

Best of luck with your research.

Regards,

Velu Prabhakar Kumaravel, PhD Student
Center for Mind/Brain Sciences,
University of Trento, Italy


On Fri, 20 Jan 2023 at 15:24, Sahura Ertuğrul <sahuraertugrul at gmail.com>
wrote:

> Dear all,
>
> We are trying to analyze alpha power for infant data, which was collected
> at a 500 sampling rate, 2 min duration, and eyes open for two conditions.
> From now on, I have used Butterworth bandpass filter [0.01 70],
> cleanlinenoise [50 100 150 200 250], and removed baseline before pwelch
> with 1 sec Hanning window, 50% overlapping to extract power spectrum.
> Nevertheless, I have observed that filtering does not work properly for
> infant data, especially the cleanlinenoise. Therefore, I have two
> questions:
>
> - First, are there reliable preprocessing steps for infant data? We applied
> exactly the same procedure with the adults.
> - Secondly, is it also reliable to extract power spectrum without any
> filtering, that is, run frequency analyses with raw data?
>
> It is my frequency analysis with real infant data and I am very unsure
> about the steps I have applied. Your feedback and suggestions would be much
> appreciated.
>
> Thank you very much for your time and help in advance,
> Best regards,
> Sahura Ertugrul
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