[PSYC04H3] - Midterm Exam Guide - Everything you need to know! (13 pages long)

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7 Feb 2017
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Increasing use of functional mri across multiple fields: increase in fmri papers published. Mri & fmri are the main tool cog neuroscientists use in research. Intro to physics req v strong magnet: earths magnetic field= 0. 5 gauss, 1 tesla (t) = 10,000 gauss, (cid:886) tesla = (cid:886) x (cid:883)(cid:882),(cid:882)(cid:882)(cid:882) / (cid:882). (cid:887) = 8(cid:882),(cid:882)(cid:882)(cid:882) x earth(cid:495)s magnetic field, mri 3-4 teslas. Extremely powerful magnet bore patient bed there are implications. Direction b0 direction of going straight into the scanner bed. Magnetic safety: even v large and heavy objects can fly into the magnetic bore. Anything magnetic/metal will be attracted to scanner. Certain dental work (fillings okay: subjects must remove metal form their bodies. Any metal that may distort the fields (ie underwire garments: subjects must be given ear plugs (acoustic noise can reach 120db, must lie still for long periods of time; watch for claustrophobia. Not good for those w back problems.

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