PSYCH261 Lecture Notes - Lecture 27: Magnetoencephalography, Polygraph, Oscilloscope
29 Apr 2019
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Chronic recording: recordings made over an extended period of time after the animal recovers from surgery. Acute recording: recordings made for a relatively short period of time during which the animal is kept anesthetized; usually restricted to studies of sensory pathways, seldom involve behavioural observations. Recording of the electrical activity of a single neuron, usually using a microelectrode: microelectrode: a very fine electrode, made of thin wires with a very small tip, used to record the electrical activity of individual neurons. Electroencephalograms (eeg): an electrical brain potential recorded by placing electrodes on the scalp; shown on a polygraph; can be used to diagnose epilepsy or study the stages of sleep and wakefulness. A procedure that detects groups of synchronously activated neurons by means of the magnetic field induced by their electric activity; uses an array of superconducting quantum interference devices (or squids)
