PSY 105 Lecture Notes - Functional Magnetic Resonance Imaging, Positron Emission Tomography, Magnetic Resonance Imaging

• School: Ryerson University
• Department: Psychology
• Course: PSY 105
• Professor: Kristin Vickers

Document Summary

Testing the behaviour of patients with brain damage. Electroencephalograms (eeg) recording brain activity from the surface of the scalp. Neuroimaging techniques that show visual images in awake humans. Structural neuroimaging techniques use advanced technology to create images of the living, healthy brain: computerized axial tomography (ct) scan, magnetic resonance imaging (mri) Functional brain imaging techniques allow us to watch the brain in action: positron emission tomography (pet, functional magnetic resonance imaging (fmri) Cells in the nervous system that communicate with one another to perform information-processing tasks. About 100 billion neurons in the brain. Neurons vary in size and shape, depending on their location and function. Astrocytes: create blood-brain barrier, influences communication between neurons, and helps heal brain damage: one type of astrocytes is the stem cell, which creates new neurons. Oligodendroglia: provide myelin to speed up transmission of neurons. Ependymal cells: create and secrete cerebrospinal fluid (csf) Microglia: clean up dead cells and prevents infection in the brain.