Studying The Brain - Ø Provides visual image corresponding...

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Studying The Brain By Sabrina Armstrong
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Method Of Studying The Brain Ø EEG (electroencephalograph) Ø CT (computed tomography scan) Ø PET (positron emission tomography) Ø MRI (magnetic resonance imaging) Ø Lesioning Ø Electrical Recording Ø Electrical Stimulation Ø Clinical Observation
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EEG (Electroencephalograph) Ø Technique: Multiple electrodes are pasted to outside of head Ø What it shows: A single line that charts the summated electrical fields resulting from the activity of billions of neurons Ø Advantages Detects very quick changes in electrical activity in the brain, thus
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PET (positron emission tomography) Ø Technique: Positrons and photons are emissions from radioactive substances Ø What it shows: An image of the amount and localization of any molecules that can be injected in radioactive form, such as neurotransmitters, drugs, tracers for blood flow or glucose use (which indicates specific changes in neuronal activity) Ø Advantages Ø Allows functional and biochemical studies Ø Provides visual image corresponding to anatomy
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Unformatted text preview: Ø Provides visual image corresponding to anatomy Ø Can identify specific receptors or transporters associated with some neurotransmitters Ø Disadvantages MRI (magnetic resonance imaging) Ø Technique : Exposes the brain to magnetic field and measures radio frequency waves Ø What it shows : Traditional MRI provides high resolution image of brain anatomy, and newer functional images of changes in blood flow (which indicate specific changes in neuronal activity) Ø Advantages of MRI: Requires no exposure to radioactivity Clinical Observation Ø Doctors study the effects of accidents/brain damage, which is the oldest way of studying. Ø Strokes Ø Traumatic Injury Ø Tumor Ø Lesion Reference Flashcards table on methods for studying the brain. (2010). Retrieved from http:// www.proprofs.com/flashcards/tableview.php?title=methods-study Studying The Brain By Sabrina Armstrong...
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