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Neck tension may affect
channels on the back of the
head, predominantly O1/O2,
but also in parietal sensors
(Pz/P3/P4, P7/P8). Subjects
should be comfortably seated,
with appropriate bracing at
the back and neck. Avoid
slouching.
Brief disruptions in contact
between sensor and scalp
may cause “sensor pops” on
recordings. Occasional pops
can usually be ignored in
processing, but if the problem
persists, check the contact
between the sensor and
scalp. Wipe popping locations
with a small amount of alcohol
on the sensor.
Muscle Artifact: Neck Tension
Headset Or Electrode Disruptions: Sensor Pops
Understanding Readings
Excess or quick movement
of the head may disrupt
connection between sensors
and scalp causing data
artifacts as shown.
Headset Or Electrode Disruptions: Head Movement
