Research methods Flashcards
Reasons for research methods to study the brain?
Correlate brain anatomy with behavior
Record brain activity during behavior
Examine the effects of brain damage
Examine the effects of stimulating particular parts of the brain
Phrenology
The process of relating skull anatomy to behavior
Computerized Axial Tomography
CAT scan
Involves the injection of a dye into the blood and a passage of x-rays through the head
Scanner is rotated slowly until a measurement has been take at each angle and a computer constructs an image of the brain
Magnetic Resonance Imaging
MRI
Involves the application of a powerful magnetic field to image the brain
Orients all of them one direction and then lets them go taking a picture really quick
Electroencephalograph
EEG
Records electrical activity produced by various brain regions
Position-emission tomography
PET
Records emission of radioactivity from injected radioactive chemicals to produce a high-resolution image
Functional magnetic resonance imaging
fMRI
Pro?
Uses oxygen consumption in the brain to provide a moving and detailed picture
Pro:
Does not expose the brain to radioactivity