[BIO SCI 38] - Final Exam Guide - Everything you need to know! (80 pages long)
28 Nov 2016
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Human imaging methods not one ideal method. Electrophysiological: direct measure of neural activity, high temporal resolution, poor spatial resolution or coverage, eeg/erp -> depth electrodes meg. Hemodynamic: indirect measure of activity, poor temporal resolution, reasonable spatial resolution and/or coverage, fmri pet. Cap that you wear with a bunch of electrodes to measure their acnosurface. Give them a task like a beep and time lock the signals. Test that uses special kind of camera and tracer to look at the organs of the body. Can measure anything you tag: oxygen, glucose, dopamine , cbf, oef, cmro2 . There are drawbacks: radioactive, cyclotron needed, very poor temporal resolution and spatial is not great. Also known as nmr (nuclear magnetic resonance) Nuclear was dropped because of fear of something radioactive in mri (there is no ionizing of radiation in mri) Tissues different t1 and t2 let us tune the image"s contrast.
