AI Article Synopsis
- Intracellular recordings from photoreceptors in the cockroach's compound eye revealed two types of cells: UV-receptors (peak sensitivity at 361 nm) and green-receptors (peak sensitivity at 503 nm).
- The spectral response of the whole eye, measured through electroretinography (ERG), showed two peaks around 350-370 nm and 500 nm, with a dip between 400-430 nm.
- These findings support the notion that cockroaches have dichromatic vision, meaning they perceive two distinct ranges of colors.
Article Abstract
Intracellular recordings were made from single photoreceptors of the frontal part in the compound eye of the cockroach Blatta orientalis. Two spectral types of cells were revealed: UV-receptors with lambda max = 361 +/- 8 nm and green-receptors with lambda max = 503 +/- 12 nm. Spectral curve of the whole eye measured by ERG had two peaks (at lambda = 350-370 and 500 nm) and minimum in the range of 400-430 nm. The finding has been interpreted as an additional evidence for dichromatic vision of the cockroach.
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