EEG (brain activity)

Question 1

Electrocephalography

Answer 1

an electrophysiological monitoring method to record electrical activity of the brain

Question 2

Neuronal synchronization

Answer 2

EEG waves: amplitude increases, frequency decreases. Open –> closed eyes: beta –> alpha waves

Question 3

Neuronal desynchronization

Answer 3

EEG waves: amplitude decreases, frequency increases, irregular waves. Closed –> open: alpha –> beta waves.

Question 4

What does EEG measurement provide info about

Answer 4

Often used to diagnose epilepsy, which causes abnormalities in EEG readings. Also used to diagnose sleep disorders, coma, and brain death.

Question 5

10-20 international system of EEG

Answer 5

an internationally recognized method to describe and apply the location of scalp electrodes in the context of an EEG test or experiment

Question 6

Brain waves (lowest to highest)

Answer 6

delta, theta, alpha, beta, gamma