Dear All,
I am using ADJUST plugin in EEGlab for artifact removal from raw data. I follow the instruction listed in the ADJUST manual to process the data. after running ADJUST I get the artifacted ICs in a new pop-up window, I mark these ICs for rejection and then I go to tools to remove these ICs (via EEGlab GUI menu>>tools>>remove components). A new dataset is created (eegdata pruned with ICA ), according to ADJUST tutorial this is the clean eeg data, but I see from the plots that there is still artifact present in the data. When I run ICA again and then again run ADJUST I get a new pop-up window in which some other ICs are identified as artifacts. I remove these ICs again. But still, artifact are present in data. I repeat running ADUST many time and each time I get new ICs marked as an artifact.
I would be happy if you guide me with this problem.
Hi!
If Runica>ADJUST>Runica is your first step to remove artifacts maybe you shoud clean your data a little first by visual inspection removing some noisy periods. Sometimes a very noisy data affects ICA, giving worse results. You can check the eeglab visual artifact rejection tutorial.
Dear Lucila and Hassan,
Thank you so much for your response on the query.
Lucila: Your idea is right, the data needs to be visually inspected before applying any automated artifact removal method. There is a lot of noisy portion in my data which can not be handled by ADJUST. Now, After visual inspection I am able to get clean data. so the problem seems solved. Thank you
Hassan: Thank you for the tutorial. I am already using this tutorial.
Best regards,
- Badges
- Science topic