Lecture notes and notes from book (Fundamentals of Human Neuropsychology)

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Department
Psychology
Course
PSY318H5
Professor
Melissa Holmes
Semester
Winter

Description
ImagingtheBrainsActivity(contd) January-31-10 12:44PM DynamicBrain Imaging { Varietyofmodernbrain-imagingmethods { Electricalrecording Detectchangesinelectricalactivityofneurons { Brainstimulation Inducechangesintheelectricalactivityofthebrain { X-rayimaging Sensitivetodensityofdifferentpartsofthebrain,ventricles,nucleiandpathways { Dynamicimaging Recordandmanipulateongoingchangesinbrainactivity,includingtheelectrical activityofcells,biochemicalevents,differencesinglucoseconsumptionandtheflow ofbloodtovariousregions { MagneticResonanceImaging(MRI) { Usesalargemagnetanda specificradiofrequencypulsetogenerateabrainsignalthat producesanimage { Magnets-1.5 teslasinstrength 3 { Highresolution,voxelsizebetterthan1mm Slide5 Slide6 Slide7 ThePhysicsof MRI { Page153 ThePhysicsof MRI { Whenhorizontalmagneticfieldisturnedoff,protonsrelax { Relaxationdescribedby { T 1 current detectorhavingorientationhorizontaltoverticalaxisofprotonsinitial alignme
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