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Frequency analysis of accommodation: single sinusoids
Author(s) -
Sun Fuchuan,
Brandt Stephan,
Nguyen An,
Wong Margaret,
Stark Lawrence
Publication year - 1989
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1989.tb00940.x
Subject(s) - accommodation , nonlinear system , control theory (sociology) , computer science , contrast (vision) , acoustics , control (management) , optics , physics , artificial intelligence , quantum mechanics
We present an experimental frequency analysis of a neurological control system, the accommodation system, using single sinusoids. Also, by means of continual experimental calibration and full coverage of one subject's dynamic range, we demonstrate an AC nonlinearity saturation, which probably lies in the motor‐response portion of the system; in contrast to the switching‐mode nonlinearity, which probably lies in the sensory‐processing portion. We offer our findings as a basis for further models. In addition, our results can be compared with studies using multiple sinusoids and transients to document how the different aspects of the accommodation system are realized given their different input conditions.