PSYCH 3240 Chapter Notes - Chapter 5: Transcranial Magnetic Stimulation, Positron Emission Tomography, Cerebral Angiography
9 Sep 2016
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Document Summary
Contrast x-ray techniques: x-ray techniques that involve the injection into one compartment of the body a substance that absorbs x-rays either less than or more than the surrounding tissue. Cerebral angiography: a contrast x-ray technique for visualizing the cerebral circulatory system by infusing a radio-translucent dye into a cerebral artery. Computed tomography (ct): a computer-assisted x-ray procedure that can be used to visualize the brain and other internal structures of the living body. Magnetic resonance imaging (mri): a procedure in which high-resolution images of the structures of the living brain are constructed from the measurement of waves that hydrogen atoms emit when they are activated by radio-frequency waves in a magnetic field. Spatial resolution: ability of a recording technique to detect differences in spatial location. Positron emission tomography (pet): a technique for visualizing brain activity, usually by measuring the accumulation of radioactive 2- deoxyglucose (2-dg) or radioactive water in the various areas of the brain.
