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Chromatic properties of lateral inhibition in the eye of a fly

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Light-induced potentials were recorded intracellularly from the axons of the monopolar neurons L1 and L2, in the eye ofCalliphora erythrocephala.

  1. 1.

    The receptive fields of these secondary neurons were determined for various wavelengths of the stimulus light (Figs. 1 and 2). No differences associated with the different wavelengths were found.

  2. 2.

    Curves of responsevs. intensity were recorded for different wavelengths (Figs. 3 and 4). These differed only in their position along the intensity axis.

It follows that the receptor type controlling inhibition has the same chromatic properties as the R1–R6 system, which constitutes the excitatory input channel.

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Supported through Deutsche Forschungsgemeinschaft.

We would like to thank Mrs. Ch. Lorenz and Miss G. Feldmaier for valuable technical assistance. Dr. Marguerite B. Thorson has translated the German manuscript into English.

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Zettler, F., Autrum, H. Chromatic properties of lateral inhibition in the eye of a fly. J. Comp. Physiol. 97, 181–188 (1975). https://doi.org/10.1007/BF00617541

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  • Receptive Field
  • Lateral Inhibition
  • Receptor Type
  • Stimulus Light
  • Excitatory Input