Computer assisted analysis of S-potentials.
S-potentials from the channel catfish were analyzed using a high speed biological data processing system developed at this Institute. The analysis has shown that, when moderately dark adapted, the relation between the (maximal) amplitude of S-potential and log intensity of flash was the hyperbolic tangent throughout the whole visible spectrum. This is what one could expect if the S-potential in the fish was generated by signals from a single class of pigment and each signal had discrete action on the S-potential generating mechanism. The maximal absorption of the pigment involved was at around 625 nm.
D000818:Animals; D003201:Computers; D003203:Computers, Hybrid; D003624:Darkness; D004594:Electrophysiology; D005399:Fishes; D008027:Light; D011199:Potentiometry; D012168:Retinal Pigments / Q000502:physiology*; D014785:Vision, Ocular
D012168:Retinal Pigments