PSYCH261 Chapter Notes - Chapter 5.2: Positron Emission Tomography, Radioactive Tracer, Photographic Emulsion
12 Oct 2018
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Psych 261 textbook chapter 5. 2 reading summary. Microelectrode: a very fine electrode, generally used to record activity of individual neurons. Single-unit recording: recording of the electrical activity of a single neuron. Macroelectrode: an electrode used to record the electrical activity of large numbers of neurons in a particular region of the brain; much larger than a microelectrode. Electroencephalogram (eeg: an electrical brain potential recorded by placing electrodes on the scalp. Magnetoencephalography: a procedure that detects groups of synchronously activated neurons by means of the magnetic field induced by their electrical activity; uses an array of superconducting quantum interference devices, or squids. 2-deoxyglucose (2-dg) (dee ox ee gloo kohss: a sugar that enters cells along with glucose but is not metabolized. Autoradiography: a procedure that locates radioactive substances in a slice of tissue; the radiation exposes a photographic emulsion or a piece of film that covers the tissue.
