[Eeglablist] ERSP Plot

[Luigi Gan]

I am a beginner at EEG processing and just collected some data for a simple
finger-tapping experiment. And the ERSP plot that I get after
pre-processing does not seem to have an obvious ERD/ERS like those seen in
the literature. Does the problem lie in my pre-processing or in how I
collected the data?

Experiment condition:
15 sets of (Rest-> 1x Finger tap -> Rest )
Rest lasts for 5 seconds
Finger tap lasts for 10s *subject does nothing after doing a single finger
tap

Pre-processing steps:
Set channel locations
Set CAR
Filter 0.5Hz
Remove artifacts and bad channels
Run ICA and remove eye, muscle etc components
Set epochs and remove baseline
Plot ERSP at C3

Resulting ERSP plot:
https://urldefense.com/v3/__https://photos.app.goo.gl/5qKLsRi4xpnzrqNv8__;!!Mih3wA!HzjeFbRSp3pw7Vh_-km4gQUMMnTJZor2q60q51qwf9N5ft3mBk7NtMiXYgaUgwNHV-bS7iIq7JobfGjoU8Q9J_4i$ 

Thank you very much,

Luigi