PSY 1101 Lecture Notes - Lecture 7: Xibalba, Functional Magnetic Resonance Imaging, Optogenetics

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Kenneth Campbell

Document Summary

The the clinical setting: oberve functions laost because pf nrain injury (trauma, stokre, tumours, etc) Problem: human brain injuries are often widesspread an not hightly specific. The experimental setting: lesion a specific part of animal brains to determine its function. Stimulate a specfic area of the brain to observe the function it controld. Problem: in many cases, it is difficukt to know just what an animal is experiencing. Problem: invasive, requires deoxyglucose to be injected into the blood. Very slow, blood circulates slowly, the brian makes rapid decisions. The pet provides an imagine aof all brain areas that were active within the last 1-2 minutes expensive. Advatnage: provides an image of the function of various structure sof the brain. Indicates which areas are active (requrie oxygen) for a task to be completed. An be as dast as 200-500 ms to obtain image, but the. Processing in the brain can be determind eery 1ms, very inexpensive.