PSYC1004 Lecture Notes - Lecture 2: Ct Scan, Neuroimaging, Positron Emission Tomography
26 Oct 2018
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Document Summary
Imaging of the brain is important in understanding human thought and memory. The industry is advancing at such a fast rat ethat in the next decade we will yeild as much new information as humans have since the dawn of time. Measures electrical activity towards the surface of the brain, capitalising on the fact that every time a nerve cell fires it produces electrical activity. This activity can be measured by external electrodes placed on the head. Frequently used to diagnose disorders such as epilepsy and also used in sleep studies. It has also been used to study both hemispheres, and whether or not they respond differently to stimuli that evokes positive or negative emotions. Use computer programs to convert data from brain scans into visual images of the brain. Types of neuroimaging techniques: cat scan (computerized axial tomography): rotates an x-ray tube around the head producing several images, which a computer combines to create a composite image.
