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EVOKED POTENTIAL AVERAGER MADE UP FROM LABORATORY INSTRUMENTS
Author(s) -
Numoto Mitsuo
Publication year - 1970
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1970.tb02233.x
Subject(s) - densitometer , oscilloscope , brightness , optics , psychology , physics , detector
An analog averager made of conventional laboratory instruments has been developed. It accumulates the signals as density changes on photographic film since the signals modulate the brightness of multiple oscilloscopic tracings. The final averaged response is graphically reproduced by a simple photoelectric densitometer made up from two oscilloscopes and a phototube.