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ERG Critical Flicker Frequency Assessment in Humans

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Book cover Retinal Degenerative Diseases

Part of the book series: Advances in Experimental Medicine and Biology ((AEMB,volume 723))

Abstract

Scotopic and photopic critical flicker frequency (CFF) were measured in normal subjects between the ages 20–28 and 50–58 years. Flicker electroretinograms (ERG) were recorded with stimulus frequencies from 4 to 16 Hz for scotopic intensities and 25–72 Hz for photopic intensities. ERG responses were quantified by the fast Fourier transform (FFT) magnitude. CFF was determined by fitting a line to the log-FFT-response peak vs. frequency. The slope of the older group was very similar to that of the younger group. The younger group displayed a consistent trend of higher CFF at all intensities tested.

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Author information

Authors and Affiliations

  1. Department of Vision Sciences, University of Alabama at Birmingham, 924 18th Street South, Birmingham, AL, 35223, USA

    Kristen E. Bowles & Timothy W. Kraft

Authors
  1. Kristen E. Bowles
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  2. Timothy W. Kraft
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Corresponding author

Correspondence to Timothy W. Kraft .

Editor information

Editors and Affiliations

  1. University of California, San Francisco, n/a, San Francisco, 94143, USA

    Matthew M. LaVail

  2. University of Oklahoma Health Sciences C, Oklahoma City, 73104, USA

    John D. Ash

  3. Health Science Center, Dean A. McGee Eye Inst., University of Oklahoma, Stanton L. Young Blvd. 608, OKLAHOMA CITY, 73104, Oklahoma, USA

    Robert E. Anderson

  4. Division of Ophthalmology, Cole Eye Institute at the Cleveland Clin, Euclid Ave. 9500, Cleveland, 44195, Ohio, USA

    Joe G. Hollyfield

  5. Experimental Ophthalmology, University of Zurich, ZURICH, 8091, Switzerland

    Christian Grimm

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© 2012 Springer Science+Business Media, LLC

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Bowles, K.E., Kraft, T.W. (2012). ERG Critical Flicker Frequency Assessment in Humans. In: LaVail, M., Ash, J., Anderson, R., Hollyfield, J., Grimm, C. (eds) Retinal Degenerative Diseases. Advances in Experimental Medicine and Biology, vol 723. Springer, Boston, MA. https://doi.org/10.1007/978-1-4614-0631-0_63

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