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EEG (electroencephalograph)
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Instrumetn that records electrical activity in brain.. used to explore brain wave patterns during stages of sleep & peep with psych. disorders.
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CT (computed tomography scan)
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And xray of brain, produces 3d image. used to explore structural abnormalities
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PET (positron emission tomography)
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Subject recieves shot of radioactive isotopes. it highlights most active prts of brain.
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MRI (magnetic resonance imaging)
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Uses a magnetic field to create a computerized image of internal bodily structures.
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Lesioning
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The investigator destroys parts of the brain and then observes effect.
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Electrical recording
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Electrodes are implanted in2 particular neurons, or nerves.
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Electrical stimulation
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Investigators pass a mild electric current through particular parts of brain and observe effect.
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