Psychology Unit 1- brain scanning techniques
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9 Terms
Electroencephalograph scans- main function
uses electrical signals of different frequencies to measure electric activity
Electroencephalograph scans- limitations
only measures large areas at once; lack of spatial precision
Electroencephalograph scans- useful for…
studying mental functioning (sleep, awareness, brain disease), how different people respond emotionally
Computer axial tomography scans- main function
takes images at every degree for 180 degrees to produce parallel cross-sectional images
Computer axial tomography scan- limitations
considered invasive, as it uses radiation/ sends radioactive substance in the patient
Computer axial tomography scan- useful for…
taking a picture at a given time by calculating the amount of radiation that passes through