how do we study brain/behavior relationships?
DESCRIPTION
How do we study brain/behavior relationships?. Populations: Animal Models: advantages:disadvantages:. Human Models. populations with injuries or disease normal populations. Humans. History: phrenology:. Non-invasive ways of viewing brain function. Assessment of Structure vs Function. - PowerPoint PPT PresentationTRANSCRIPT
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Populations:
◦ Animal Models:
advantages:disadvantages:
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populations with injuries or disease
normal populations
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History:
◦ phrenology:
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Assessment of Structure vs Function
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CT or Cat Scan
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CT Scan
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CT or Cat Scan
◦3 D xrays
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CT or Cat Scan
MRI's
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magnetic resonance imaging
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CT
MRI
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EEG - electroencephalogram
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EEG – electroencephalogram
◦ ERPs – evoked related potentials
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PET scans◦ rCBF – regional cerebral blood flow
Premise – more blood flow means more (neuronal) activity
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PET scans◦ rCBF
◦ 2DG – 2 deoxyglucose Premise – need for more sugar – need for more
energy – more (neuronal) activity
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PET scans◦ rCBG
◦ 2DG
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fMRIs
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Histological analysis
Lesion studies ◦ Rationale – if an area is damaged and behavior
changes….. the neurons in that area play a role?
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Electrical stimulation
◦ Rationale: if we stimulate an area and we produce or stop a particular behavior….the neurons in that region are important for that behavior
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Delgado’s classic experiment
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Electrical stimulation
Pharmacological manipulations◦ Use of drugs and various agents
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Microdialysis- looks at the amount of neurotransmitter released in a region of the brain….