PS102 Lecture Notes - Lecture 8: Functional Magnetic Resonance Imaging, Reductionism, Neuroglia
Document Summary
Any complex behaviour can be reduced to communication between neurons. Explain how simple behaviour leads to more complex behaviour. The recording and imaging of brain activity opened whole areas of inquiry to biological psychologists. Electroencephalography (eeg: sensors placed on the scalp measure electrical activity in the brain, event-related p. Functional magnetic resonance imaging (fmri: fmri techniques measure delivery of oxygen to the brain, activity in brain area increases, oxygen increase, based on the amount of oxygen in the blood, measures activity in brain, function and structure. Mri: uses magnets, scans and builds a 2d or 3-d image, very clear image, distinguished among different body tissues, need to avoid all metal objects, measures brain structure, does not cover the functions. Ct scan: x-ray type images, may require dye, lots of images, layer them on top of each other. Gives a cross-section: measures brain structures.
