amplified recording of the waves of electrical activity that sweep across the brain's surface.
measured by electrodes placed on the scalp
series of x'ray photos taken from diff. angles and combined by computer into a composite rep. of a slice through the body;.
visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task
uses magnetic fields and radio waves to produce computer-generated images that distinguish among diff. types of soft tissue
allows to see structures within the brain
reveals blood flow, and therefore, brain activity by comparing successive MRI scans
analyzes brain structure
effect on Broca's Area
have trouble forming & understanding coherent sentences, word order, understanding directions
effect on Angular Gyrus
difficulty writing, doing math, understanding left & right
effect on brainstem
difficulty speaking & swallowing
effect on occipital lobe