PSYC 2200 Lecture Notes - Lecture 2: Histology, Hemodynamics, Corpus Callosum
1 Sep 2020
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Post mortem methods in vitro (outside the body) (often used in animal research; used in humans post mortem study) Invasive methods- in vivo (in the living body) (sometimes used in humans for medical reasons; used in animal research) Surgically implanted electrodes (record/ stimulate) tissue removal or tract separation. Non-invasive methods- in vivo (required for most experimentation on humans, preferred for medical purposes; sometimes used in animal research) Mri, pet, fmri, cat, meg, external/surface recordings, tms. Best way to get precise information is looking under a microscope. Doctors need to probe brain where tumor is being removed to not affect language area. Knew the number 5 but couldn"t say it, paralyzed the mental process that turned the thought into a word. Process that reconstructs 2 dimensional x ray images into 3 dimensional images. Patient is in a donut shaped giant magnet that runs down the tube. Sends radio pulse at the area of the body being scanned.
