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Spindles or Alpha intrusion to SWS

PostPosted: Mon Apr 15, 2019 5:31 pm
by Modifier1
Hi there,

Just a quick question which I hope some of you can aid me with. I'm currently viewing many of my NREM 3 epochs which present with consistent transient alpha delta sleep.
To my understanding sleep spindles can also be present during SWS.

Is there any particular pattern which would enable me to correctly identify if what I'm viewing is either an alpha intrusion superimposed on the slow waves, or if it is indeed a sleep spindle occurring during NREM3.

Understandably if the superimposed activity is greater than 13hz it could be assumed to be a spindle - but there is an overlap in alpha and spindle frequency (11-16hz).

Thank you for any answers!

Re: Spindles or Alpha intrusion to SWS

PostPosted: Wed Apr 17, 2019 6:01 pm
by somnonaut
Spindles are transient .5 - 2sec in duration. Alpha can be ongoing.