PSY100H1 Chapter Notes - Chapter 3: Magnetic Resonance Imaging, Transcranial Magnetic Stimulation, Diffusion Mri
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PSY100H1 Full Course Notes
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Document Summary
A drawback of measuring brain activity in humans for research is that the researcher has no control over which part of the brain is to be damaged. Lesioning is a technique in which researchers intentionally damage an area in the brain. Spatial learning (hippocampus lesioned) is investigated in animals using this technique. Transcranial magnetic stimulation is a procedure in which an electromagnetic pulse is delivered to a targeted region of the brain. The pulse interacts with the ions around the neurons. It can also stimulate a brain region but this depends on the intensity of the electromagnetic pulse. Structural neuroimaging is a type of brain scanning that produces images of the different structures of the brain. It can show us the extent of damage to the brain. Functional neuroimaging provides information about which areas of the brain are active when a person performs a particular behavior. Very poor temporal whole brain resolution (2 minutes; often longer)
