Oscillatory potentials were recorded from four adult subjects under dark-and light-adapted conditions with photopically balanced red and blue flashes. The responses between 80 and 200 Hz were analyzed by means of a Fast Fourier transform program. The results show a robust change in the power --but n
The influence of adaptation on the oscillatory potentials of the human electroretinogram
β Scribed by Xiao-Xin Li; Nin Yuan; Jie Hong; Pei Song
- Publisher
- Springer-Verlag
- Year
- 1991
- Tongue
- English
- Weight
- 236 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0012-4486
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β¦ Synopsis
The influence of adaptation on the oscillatory potentials of the human electroretinogram was studied in the domains of frequency and time. The amplitude of OP1 to OP4, the summed amplitude of OP1 to OP4, as well as the area, decreased from dark adaptation to light adaptation. With increasing intensities of background illumination, they increased slightly and appeared to decrease with the strongest background illumination. The implicit time of oscillatory potentials 3 and 4 increased with stronger background illumination and decreased with the strongest background illumination. The results of the dominant frequency and the total power of the OPs correspond to the results in the time domain. The dominant power decreased from dark adaptation into light adaptation and did not show any systematic changes with increasing intensity of background illumination.
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