
What Does Lack Of Reaction By A Patient During EEG Scan Indicate?

You probably did not respond to verbal message.
Detailed Answer:
Hi,
Welcome to HealthCareMagic.com I am Dr.J XXXXXXX Anto Bruno Mascarenhas. I have gone through your query with diligence and would like you to know that I am here to help you.
Let us first see the basics
1
Alertness varies according to the stimulus in different persons
Some People are very alert to objects in games e.g. a baseball being hurled at them, but are slow to respond to oral commands or dialogues.
Some People are very alert to oral commands or dialogues and will immediately reply, but may not be able to tackle a tennis ball coming at them
Some People are fast at both
Some People are slow at both
2
Even among the same person, alertness varies according to time
A professional Tennis Player or Baseball Player, may not be as alert in his game after a 12 hour drive as compared to how he will be after getting up and warming up
In Your case,
You can respond quickly to a ping pong ball and you are very good at the game
But
When other doctors and nurses observed you over the years, they write down: "patient has a flat affect"
It just means that you are very good and have high alert levels for Objects and games, but when some one is talking to you, you do not respond immediately
Now Coming to the EEG
During EEG, the technician must have spoken to you asking you to do something
But
You must have been preoccupied with your thoughts, or concentrating on the lights of other equipments in the room that you failed to hear what the technician said
The EEG technician would not know that you were intently watching something
He just assumed that you did not reply properly because you were drowsy
Q1
Could untreated depression or schizophrenia show "drowsy brainwaves" when the patient feels as wide and awake he or she could every be.
A1
I don't think that it is drowsy brain waves
It is more likely that that you were slow to respond as your attention was on something else during hat time
Hope you found the answer helpful.
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