1/9
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
electrical activity of the brain
neural function depends on electrical events. electrical activity of neurons generates electrical field
brain waves
electrical patterns observed
alpha waves
in healthy, awake adults while resting with eyes closed during sleep. concentration on specific task
beta waves
higher frequency than alpha waves. concentrating on task, under stress, or psychological tension
theta waves
transiently during sleep in normal adults. observed in children and intensely frustrated adults
delta waves
seen during sleep in all ages. seen in awake adults when damaged brain
abnormal brain activity
electrical activity in cerebral hemispheres usually synchronized by a pacemaker that involves the thalamus
asynchrony
may indicate localized damage or cerebral abnormality
seizure
temporary cerebral disorder accompanied by an unusual neural activity. marked by change in pattern of electrical activity
epilepsies
clinical conditions characterized by seizures that occur intermittently over period of time