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THE INFLUENCE OF STIMULUS DURATION ON THE HUMAN D. C. REGISTERED c ‐WAVE
Author(s) -
TEXTORIUS OLA
Publication year - 1977
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1977.tb05652.x
Subject(s) - stimulus (psychology) , amplitude , audiology , mathematics , medicine , physics , optics , psychology , cognitive psychology
The c ‐wave of the human ERG was studied at different stimulus durations with a d. c. technique which permitted stable and reproducible recordings. With increasing stimulus lengths the implicit time increased up to a maximum of about 5.5 s. Also the amplitude of the c ‐wave rose. However, it was influenced by positive and negative off‐effects, seen in most volunteers, and at several stimulus lengths superimposed upon the peak of the c ‐wave. This fact must be considered when developing a standardized method for measuring the c ‐wave amplitude proper.