02_Cognitive_Neuroscience

Resolution poor temporal resolution 13 strong magnetic

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Unformatted text preview: ession   Electrical activity  ­ Electroencephalograms (EEGs)   Good temporal resolution   Poor spatial resolution   Measure ERPs  ­ Event ­Related Potentials 10 11   CT Scans  ­ Computed Axial Tomography   Static pictures   X ­ray methodology  ­ machine rotates around skull   Builds a 3 ­D image from composite of 2 ­D x ­rays   No temporal resolution   Good for mapping structure 12   PET Scans  ­ Positron Emission Tomography   Measure glucose usage in brain   Inject subject with radioactive isotope   Good spatial resolution   Poor temporal resolution 13 •  Strong magnetic field passed through the skull •  Uses the detection of radio frequency signals produced by displaced radio waves in a magnetic field •  Creates a detailed anatomical image of the brain...
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This note was uploaded on 01/26/2014 for the course PSYCH 228 taught by Professor Broaders during the Winter '11 term at Northwestern.

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