EEG's Flashcards
What do they measure?
Electrical activity within the brain via electrodes that are fixed to an individual spell
What do recordings represent?
brain wave patterns generated from action of billions of neurones
When are EEG’s often used?
By clinicians as a diagnostic tool as unusual patterns of activity indicate neurological abnormalities like epilepsy, tumours and disorders of sleep
How is it valuable int he diagnosis of epilepsy?
It detects random bursts of activity within the brain
What do EEG’s help us understand?
Stages involved in sleep
What can EEG technology do today?
Accurately detect brain activity at a resolution of a single millisecond
What is the EEG’s signal not useful for?
Pinpointing the exact source of neural activity
What do EEG’s not allow researchers to do?
Distinguish between activities originating in different but adjacent locations
