PSYC 309 Chapter Notes - Chapter 2: Transcranial Magnetic Stimulation, Positron, Music Therapy
Document Summary
Ch 2 brian and cognition trepanning: a form of ancient brain surgery (making holes on head) neurons: circuits of specialized cells and their interconnections. Franz josef gall, phrenology !study of bumps!-believed that the brain was the organ of the mind and that different mental abilities were localized in different areas of brain. Eeg (electroencephalography)-uses electrodes on the scalp to record the electrical activity of the brain. To identify momentary changes in the eeg signal that occur as an immediate response to something that the participant has observed or thought about (erps-event-related potentials). They occur at different time delays following a psychological event. Pet !positron emission tomography!-measure the amount of blood ow-to do this, a radioactive does of glucose is injected into the bloodstream. *precisely identifying which speci c brain areas are active during cognitive events. The more an area of the brain is involved in a cognitive task, the more blood will ow there.
