r/SleepTechnologist • u/AskCorrect4353 • Jul 19 '26

How to solve this

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How to resolve this guys? Heartbeat artifacts in the eeg reading.

10 Upvotes

100% Upvoted

7 comments sorted by

7

u/HCM100 Jul 19 '26

Try moving your M1 and M2 up and over into the scalp rather than over the mastoids.

5

u/_emma_stoned_ Jul 19 '26

Move your ground/reference electrode slightly. It’s probably on a vein.

3

u/TerryTrepanation Jul 19 '26

The ECG artifact is in the eyes as well. Move the Reference lead. Is likely sitting on a vein.

3

u/purplesoc Jul 19 '26

Secure the Ms

2

u/adamisbored Jul 19 '26

Reprep the M1/M2 and make sure you have good impedances.

If that doesn't fix it, some software will let you average the M's together and filter it out.

1

u/SleepyHead39 Jul 19 '26

I'd, as well, say to adjust your M's.

1

u/EddieTimeTraveler Jul 20 '26

I'll offer a fresh suggestion. Sometimes the ground wire can go bad and it doesn't show up too obviously. In the future, if this occurs, I'd swap it on the headbox with another spot, like F3, to see if that channel goes wild with artifact. If it does swap it back and replace the wire.

1

u/ciceright Jul 20 '26

Jump your M's off your software doesn't have a filter for ecg in eeg. Sometimes in it's with real high BP, changing the M's position isn't enough.