Spectral Sensitivity Comparison of On- and Off-Responses of the Frog Electroetinogram,
Abstract
Slow repetitive stimulation (12/min) 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 10, 1964
- Accession Number
- AD0611958
Entities
People
- Robert M. Chapman