week_1_The_brain_2_3_slides - The Brain: Methods Week 1,...

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HD 220 2006 1 Temple, 2006 1 The Brain: Methods Week 1, lecture 2 Temple, 2006 2 The Brain: Functional Organization • Methods for studying the human brain – Brain structure – Brain function – Disease models Temple, 2006 3 Neuroscience Methods
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HD 220 2006 2 Temple, 2006 4 Neuroscience Methods Not with humans Not with healthy humans Not with children Temple, 2006 5 Methods for Studying Human Brain •S t r u c t u r a l –MR I – CT scan • Functional – Metabolism techniques •fMR I • PET – Electric/magnetic techniques • EEG / ERP •M EG – Stimulation • Disease Models – Lesions – Disorders Temple, 2006 6 MRI: Magnetic Resonance Imaging
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HD 220 2006 3 Temple, 2006 7 MRI Brain: Axial Brain: Sagittal Knee Spine Temple, 2006 8 How MRI works • MRI sees soft tissue – by measuring its magnetic properties • No bone • a. Hydrogen (mostly from H 2 0) in body has “magnetic” spin – Normally random arrangement • b. MRI machine aligns all these “magnets” with a strong magnetic pulse • c. send another pulse that “knocks” them out of alignment • d. measures how long each one
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This note was uploaded on 09/28/2008 for the course HD 220 taught by Professor Anon during the Fall '06 term at Cornell University (Engineering School).

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week_1_The_brain_2_3_slides - The Brain: Methods Week 1,...

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