PSYC 1000 Chapter Notes -Electroencephalography, Positron, Brainstem

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: Dan Meegan

Document Summary

Module 5: tools of discovery and older brain. The tools of discovery: having our head examined. Early clinical observation: brain-mind connections, damage on one side effects opposite side, back of the brain disrupts vision, left front produced speech difficulties. Lesion: tissue destruction, naturally or experimentally caused destruction or brain tissue. Today"s neuroscientists stimulate various parts of the brain: electronically, chemically, or magnetically, able to detect a electrical pulse in a single neuron. Electrical activity in brain"s neurons sweep across in regular waves. Electroencephalogram: an amplified recording of the waves of electrical activity that sweep across the brain"s surface, waves are measured by electrodes places on the scalp, stimulus repeatedly and unrelated activity is filtered. Pet positron emission tomography scan: visual aid of brain activity that detects where radioactive from of glucose goes where the brain performs a given task, hot spots show which brain areas are most active.