2 doctors weighed in:

My son got an EEG where they put probes on his head while he slept for 30min. Do the probes have lights on them and flash when something happens?

2 doctors weighed in
Dr. Julian Bragg
Neurology

In brief: Normal stimulation

Bright lights flashing at different frequencies are used as a standard part of the eeg.
Referred to as "photic stimulation, " the flashes cause discharges in the visual region of the brain. In some patients, the evoked responses are asymmetric or excessively large, which can indicate an abnormality.

In brief: Normal stimulation

Bright lights flashing at different frequencies are used as a standard part of the eeg.
Referred to as "photic stimulation, " the flashes cause discharges in the visual region of the brain. In some patients, the evoked responses are asymmetric or excessively large, which can indicate an abnormality.
Dr. Julian Bragg
Dr. Julian Bragg
Thank

In brief: No

The probes sense electrical activity, impulses, from the brain.

In brief: No

The probes sense electrical activity, impulses, from the brain.
Dr. Anthony LaBarbera
Dr. Anthony LaBarbera
Thank
Get help from a real doctor now
Dr. Bennett Machanic
Board Certified, Neurology
48 years in practice
55M people helped
Continue
108,000 doctors available
Read more answers from doctors