PSY 320 Chapter Notes - Chapter 5.2: Transcranial Magnetic Stimulation, Diffusion Mri, Psych
Document Summary
Neuroscience fmri, tms, eeg and more: functional magnetic resonance imaging. Produces images representing the increase in oxygen flow in the blood to active areas of the brain. Possible because of the two attributes of oxygenated blood. Active areas of the brain take up more oxygenated than they need for their energy requirement and thus oxygenated blood accumulates in active areas of the brain. Second oxygenated blood has magnetic properties that influences the radio frequency waves emitted by hydrogen atoms in and mri. The signal recorded by fmri is called bold signal fmri has four advantages over pet. Northing has to be injected into the volunteer. It provides both structural and functional information in the same image. It can be used to produce 3d images of activity over the entire brain fmri has poor temporal resolution00it is poor at specifying the timing of neural events: diffusion tensor imaging. Method of identifying those pathways along which water molecules rapidly diffuse.
