Abstract
Three types of receptor with different λmax of 360, 430, and 530 nm were found in the locust retina by extracellular recording. Their spectral sensitivity curves were considerably broader than the absorption curves of the corresponding pigments. Possible coefficients of electrical coupling between different receptor types in ommatidia were calculated on the basis of the spectral sensitivity curves obtained for photoreceptors, assuming that each receptor contains only one light-sensitive pigment. The resulting values resembled coefficients measured in the locust by Shaw and Lillywhite. The way in which spectral sensitivity curves spread in comparison with pigment absorption curves may thus be caused by electrical coupling between cells.
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Institute of Problems in Information Transmission, Academy of Sciences of the USSR, Moscow. Translated from Neirofiziologiya, Vol. 18, No. 1, pp. 69–76, January–February, 1986.
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Vishnevskaya, T.M., Cherkasov, A.D. & Shura-Bura, T.M. Spectral sensitivity of photoreceptors in the compound eye of the locust. Neurophysiology 18, 54–60 (1986). https://doi.org/10.1007/BF01052492
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DOI: https://doi.org/10.1007/BF01052492