Accession Number:

AD0611958

Title:

Spectral Sensitivity Comparison of On- and Off-Responses of the Frog Electroetinogram,

Descriptive Note:

Corporate Author:

INSTITUTE FOR BEHAVIORAL RESEARCH INC SILVER SPRING MD

Personal Author(s):

Report Date:

1964-01-10

Pagination or Media Count:

9.0

Abstract:

Slow repetitive stimulation 12min and averaging techniques 50 responses were used to obtain low-level, clearly distinguishable on- and off-responses of the ERG recorded from the intact frog. Spectral sensitivity curves were derived from response-energy functions by the criterion amplitude method. Under dark-adapted and low light-adapted conditions the off-responses were relatively more sensitive to shorter wavelength light than the on-responses. With high-energy light flashes and under high light-adapted conditions the spectral sensitivity of the off-response tended to shift toward longer wavelengths. The short-wavelength sensitivity of the offresponse is discussed in terms of the possible role of the blue-sensitive pigment of the green rods. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE