Spindle-like patterns in EEG under normal conditions
Hello, after a long run of the Ganglion, I have a strange repetitive spindle-like pattern
in my EEG (under normal conditions). It is not related to blinks. For instance I tried three below.
The pattern that I get
is shown here at channel 3. I tried doing two blinks also:
The pattern appeared
in another channel later:
And eventually at all
channels:
It also coexists with
alpha activity (eyes closed):
Could I please ask for
your help?
Thank you
Best wishes
Elisabeth
(PS: I am in Europe and I use the 50Hz notch)
Comments
Is there any chance that you had a cell phone turned on nearby when you were making these recordings? The triplet especially in the top graph looks a bit like the signal that leaks into our student neurophysiology amplifiers when a cell phone communicates with the local tower. If you or someone else does have a cell phone in the vicinity, try putting them in airplane mode and see if that helps at all.