PSYC 271 Chapter Notes - Chapter 5: Magnetic Resonance Imaging, Transcranial Magnetic Stimulation, Diffusion Mri

• School: Queen's University
• Department: Psychology
• Course: PSYC 271
• Professor: Monica Valsangkar- Smyth

Document Summary

Part one: methods of studying the nervous system. 5. 1 methods of visualizing and stimulating the living human brain: contrast x-rays, substance injected that absorbs x-rays less or more than the surrounding tissue, the injected substance heightens the contrast. 5. 3 invasive physiological research methods: stereotaxic surgery, experimental devices are precisely positioned in the depths of the brain, stereotaxic atlas: used to locate brain structures, has a page for each horizontal slice. Invasive eeg recording: recorded through large, implanted electrodes: cortical: recorded through stainless steel screws, subcortical: recorded through stereotaxically implanted wire electrodes. 5. 4 pharmacological research methods: how psychopharmacologists manipulate and record from the brain using chemical methods, strategy: administer drugs that increase/decrease effects of a neurotransmitter and observe behavioural consequences, drug administration, fed to subject. Injected intragastrically (through a tube in the stomach) Intraperitoneally (ip): hypodermically into the peritoneal cavity of the abdomen. Intramuscularly (im): into a large muscle: subcutaneously (sc): into the fatty tissue beneath the skin.