Events missing with large file import to EEGlab

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davo
Posts: 1
Joined: Wed Dec 07, 2022 7:03 pm

Events missing with large file import to EEGlab

Post by davo »

Dear all,

When importing .bdf files to EEGLAB with the BIOSIG toolbox from the GUI, events disappear in lage files.

It seems like there is something like channel bleed into most EEG channels, see attachment A which is a 38 minute 64 EEG + ABR recording (speedmode 13).

This does not happen with short files, see attachment B which is a 10 second recording with the same setup.

Does anyone know of a workaround? Or does anyone know the approximate file size at which this happens so I can crop appropriately?

Merry Christmas
David, University of Copenhagen
Attachments
B_small_file_10sa.jpg
B_small_file_10sa.jpg (252.39 KiB) Viewed 64 times
A_large_file_38m.jpeg
A_large_file_38m.jpeg (243.8 KiB) Viewed 64 times

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