Neural processing of linearly and circularly polarized light signal in a mantis shrimp Haptosquilla pulchella (Miers, 1880)
| Autor: | Tsyr Huei Chiou, Ching Wen Wang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
030110 physiology
0301 basic medicine Lamina genetic structures Physiology Aquatic Science 03 medical and health sciences Mantis shrimp 0302 clinical medicine Optics Mantis Molecular Biology Ecology Evolution Behavior and Systematics Circular polarization Physics biology Linear polarization business.industry Depolarization biology.organism_classification Polarization (waves) Rhabdomere eye diseases Insect Science Animal Science and Zoology sense organs business 030217 neurology & neurosurgery |
| Zdroj: | Journal of Experimental Biology. |
| ISSN: | 1477-9145 0022-0949 |
| DOI: | 10.1242/jeb.219832 |
| Popis: | Stomatopods, or so-called mantis shrimps, are the only animal group known to possess circular polarization vision along with linear polarization vision. By using the rhabdomere of a distally located photoreceptor as a wave retarder, the eyes of mantis shrimps are able to convert circularly polarized light into linearly polarized light. As a result, their circular polarization vision is based on the linearly polarized light-sensitive photoreceptors commonly found in many arthropods. To investigate how linearly and circularly polarized light signals might be processed, we presented a dynamic polarized light stimulus while recording from photoreceptors or lamina neurons in intact mantis shrimps Haptosquilla pulchella. The results indicate that all the circularly polarized light-sensitive photoreceptors also showed differential responses to the changing e-vector angle of linearly polarized light. When stimulated with linearly polarized light of varying e-vector angle, most photoreceptors produced a concordant sinusoidal response. In contrast, some lamina neurons doubled the response frequency in reacting to linearly polarized light. These responses resembled a rectified sum of two-channel linear polarization-sensitive photoreceptors indicating that polarization visual signals are processed at or before the first optic lobe. Noticeably, within the lamina, there was one type of neuron that showed a steady depolarization response to all stimuli except right-handed circularly polarized light. Together, our findings suggest that, between the photoreceptors and lamina neurons, linearly and circularly polarized light may be processed in parallel and different from one another. |
| Databáze: | OpenAIRE |
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