<div dir="rtl"><div dir="ltr">hello all,</div><div dir="ltr">i am analyizing 5 min closed-eyes resting-state data (bdf file) 32 electrodes. i am intersted on the alpha power band. i read old mails and answers on eeglablist and found (thank you!!!) the script for frequncy analysis (<a href="https://sccn.ucsd.edu/wiki/Makoto%27s_useful_EEGLAB_code#How_to_extract_EEG_power_of_frequency_bands">https://sccn.ucsd.edu/wiki/Makoto%27s_useful_EEGLAB_code#How_to_extract_EEG_power_of_frequency_bands</a> .) </div><div dir="ltr">the plan i am trying to do now is this: import the raw data, define channel location, reference to CZ, FIR high-pass 0.5, lowpass 45, import events(from a file i created, an event evey second, only for the epoching, the events has no meaning), after that i run the ICA and removing what looks like eye movement (the oarticipants moved their eyes altough it was eyes-closed condition) , then i epoch the data to 1s epochs (from -500ms to 500ms). now i want to reject artifacts by epochs, i used like i read - "all methods" and then reject by the first option (abnormal values) - i wrote +-100. the problem is it reject about half of the data... i tried it again this time with +-150 and it rejected 13% - is this the right criteria for rejection? (i was instructed to try this because we want to see alpha)</div><div dir="ltr">may i use other criteria?</div><div dir="ltr">and generally how can i know what is the right criteria?</div><div dir="ltr"><br></div><div dir="ltr">thank you vert much</div><div dir="ltr"><br></div><div dir="ltr">shira frances.</div><div dir="ltr">tel-aviv university</div><div dir="ltr"><br></div></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br>
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