Chapter 3 Flashcards
EEG
Recording brain activity from surface of skull
CT scan
Scanning using multiple X-rays to construct 3D images
MRI
magnetic fields to visualize brain structure
PET
Measure glucose-like molecules consumption to picture neural activity
fMRI
Magnetic fields to visualize brain using changes in blood oxygen levels
MEG
Brain activity by tiny magnetic fields generated by the brain
DBS (deep brain stimulation)
Electrodes and battery source implanted in brain to deliver electricity to specific brain areas
TMS
Applies strong and changing magnetic fields to skull surface to enhance or interrupt brain function
Glial cells
Formation of myelin and blood-brain barrier
Agonists
Increase/mimic effect of a neurotransmitter
Antagonist
Binds to target to prevent molecules from binding (inhibitory)
Resting potential
-70 mv
Refractory period
Another action potential is impossible
- after action potential
Glutamate
Excites neurons, enhancing learning and memory
GABA
Inhibits neurons, dampen neural activity