Chapter 6 Flashcards
EEG
Electroencephalography
The EEG was discovered by _____ in the _____s.
Hans Berger
1930
The EEG records _____.
electrical potentials
ERPs
Event-Related Potentials
ERPs are a brief change in a _____ signal in response to a discrete sensory stimulus.
slow-wave EEG
MEG
Magnetoencephalography
MEG records _____.
magnetic fields of neurons
the _____ is a MEG.
Superconducting Quantum Interference Device
SQUID
DBS
Deep Brain Stimulation
DBS is sued as a treatment for _____ and _____.
epilepsy
Parkinson’s disease
DBS reduces _____ disorders.
movement
DBS produces changes in _____ and _____.
mood
cognition
TMS
Transcranial Magnetic Stimulation
In _____, different types of tissue absorbe the x-rays to different degrees.
conventional radiography
PEG
Pneumoencephalography
During a PEG, a small amount of _____ is removed from the _____ and replaced by _____ and then x-rayed.
CSF
subarachnoid space
air
An angiography uses a substance that absorbs _____ and is injected into the _____.
x-rays
bloodstream
CT scan
Computerized Tomography scan
A CT scan can’t _____.
discriminate between gray and white matter
PET
Positron Emission Tomography
In a PET, _____ are injected into the _____ or inhaled.
radioactive molecules
bloodstream
A PET shows _____.
blood flow
MRI
Magnetic Resonance Imaging
MRS
Magnetic Resonance Spectroscopy
An MRS detects _____.
chemical composition of tissue
DTI
Diffusion Tensor Imaging
A DTI detects _____.
directional movements of water molecules in fiber pathways
