- Insects can perceive and use polarized light in the sky when navigating by using a special region in their eyes called the dorsal rim area (DRA). The size and characteristics of the DRA can differ among insect species but, until now, there has been no effective method to investigate and compare these differences.
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A specialized dorsal rim area for polarized light detection in the ...
WEBMany animals have been shown to use the pattern of polarized light in the sky as an optical compass. Specialised photoreceptors are used to analyse this pattern. We here present evidence for an eye design suitable for polarized skylight navigation in the flightless …
Polarization Vision: Drosophila Enters the Arena - ScienceDirect
WEB10 jan. 2012 · The dorsal rim area is widely conserved amongst insects, and harbours specialized photoreceptors with enhanced polarization sensitivity, usually sensitive in the …
Novel Methodology for Localizing and Studying Insect …
WEB28 jul. 2023 · Polarized light-based navigation in insects is facilitated by a polarization-sensitive part of the eye, the dorsal rim area (DRA). Existing methods to study the anatomy of the DRA are destructive and time …
The development and function of neuronal subtypes processing …
WEB1 mrt. 2021 · A duplicated set of modality-specific Dm8-like cell types in the ‘dorsal rim area’ processes skylight polarization. Transcriptomic and developmental studies reveal the …
Polarization Vision: Drosophila Enters the Arena - Cell Press
WEBTwo new studies introduce the power of Drosophila genetics to polarization vision, revealing distinct photoreceptor inputs to polarotactic behaviour mediated by dorsal and ventral …
Polarization Vision: Targets of Polarization-Sensitive …
WEB9 sep. 2019 · The locust senses polarized light via ommatidia in the dorsal-rim area (DRA) of the compound eyes. There, the microvilli of the photoreceptor cells are regularly arranged as indicated by the small ‘T’ …
Photoreceptor projections and receptive fields in the …
WEB26 feb. 2015 · In many insect species, photoreceptors of a small dorsal rim area of the eye are specialized for sensitivity to the oscillation plane of polarized skylight and, thus, serve a role in sky compass orientation.
Polarization vision in invertebrates: beyond the boundaries of ...
WEB1 dec. 2021 · It is therefore not surprising that the dorsal rim area (DRA) of the eye — the region that faces the sky — is most sensitive to light polarization [12] and the optical axes …
Compound eye and ocellar structure for walking and …
WEB15 mrt. 2016 · The dorsal rim area (DRA) has specialized rectangular or dumbbell-shaped rhabdoms in all three castes. The long axis of these rhabdoms, when viewed in cross-section, are organised in a distinct...
Synaptic targets of photoreceptors specialized to …
WEB16 dec. 2021 · Strikingly, photoreceptors in the polarization-sensitive dorsal rim area target fewer cell types, and lack strong connections to the lobula, a neuropil involved in color processing.
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