E-Vector and wavelength discrimination by retinular cells of the crayfish Procambarus

Waterman, Talbot H.; Fernández, Héctor

doi:10.1007/bf00297692

Cited by 85 publications

(36 citation statements)

References 41 publications

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“…Within the structurally unspecialized hemispheric retina, the mean PS values of the photoreceptors R1-R7 (PS=3.8±1.6) are similar to values that have been reported for photoreceptors of the crayfish and the green crab (Glantz, 1996a;Glantz, 1996b;Shaw, 1966;Shaw, 1969;Waterman and Fernandez, 1970). The mean PS value of the stomatopod's 'high PS receptors' is significantly increased (PS=6.1±2).…”

Section: Regionalization Of Polarization Sensitivitysupporting

confidence: 81%

“…In general, crustaceans lack such a specialized area for polarization vision and their inherently polarization sensitive photoreceptors are distributed homogeneously across the retina (Eguchi and Waterman, 1966;Shaw, 1966;Waterman and Fernandez, 1970). This study shows an exception to the general rule.…”

Section: Intrarhabdomal Filters In Row 2 and Row 3 Only Main Rhabdommentioning

confidence: 63%

“…The R1-R7 cells throughout the retina of crayfish are also sensitive to 'yellow' light, peaking at 561·nm (Waterman and Fernandez, 1970), although their spectral sensitivity curves are broader than those of the stomatopod's 'high PS cells'. The narrow spectral sensitivity curves of 'high PS cells' differ from previous microspectrophotometric measurements, where broad spectral absorption spectra were estimated for a variety of gonodactyloid species (Cronin et al, 2002;Cronin and Marshall, 1989a;Cronin et al, 1994a).…”

Section: The Ps Of 'High Ps Cells' Is Significantly Higher Than That mentioning

confidence: 99%

“…In general, decapod crustacean rhabdoms possess two groups of polarization receptors sensitive to orthogonal directions of polarized light, which provide separate pathways to the lamina, the first optic ganglion beneath the retina (Eguchi, 1965;Shaw, 1966;Waterman and Fernandez, 1970). Such a dual channel pathway may also exist in Gonodactylus chiragra.…”

Section: Polarization Processingmentioning

confidence: 99%

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Electrophysiological evidence for linear polarization sensitivity in the compound eyes of the stomatopod crustacean Gonodactylus chiragra

Kleinlogel

Marshall

2006

Journal of Experimental Biology

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SUMMARY Gonodactyloid stomatopod crustaceans possess polarization vision, which enables them to discriminate light of different e-vector angle. Their unusual apposition compound eyes are divided by an equatorial band of six rows of enlarged, structurally modified ommatidia, the mid-band (MB). The rhabdoms of the two most ventral MB rows 5 and 6 are structurally designed for polarization vision. Here we show, with electrophysiological recordings, that the photoreceptors R1-R7 within these two MB rows in Gonodactylus chiragra are highly sensitive to linear polarized light of two orthogonal directions (PS=6.1). They possess a narrow spectral sensitivity peaking at 565 nm. Unexpectedly, photoreceptors within the distal rhabdomal tier of MB row 2 also possess highly sensitive linear polarization receptors, which are in their spectral and polarization characteristics similar to the receptors of MB rows 5 and 6. Photoreceptors R1-R7 within the remainder of the MB exhibit low polarization sensitivity (PS=2.3). Outside the MB, in the two hemispheres,R1-R7 possess medium linear polarization sensitivity (PS=3.8) and a broad spectral sensitivity peaking at around 500 nm, typical for most crustaceans. Throughout the retina the most distally situated UV-sensitive R8 cells are not sensitive to linear polarized light.

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Section: Regionalization Of Polarization Sensitivitysupporting

confidence: 81%

Section: Intrarhabdomal Filters In Row 2 and Row 3 Only Main Rhabdommentioning

confidence: 63%

Section: The Ps Of 'High Ps Cells' Is Significantly Higher Than That mentioning

confidence: 99%

Section: Polarization Processingmentioning

confidence: 99%

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Electrophysiological evidence for linear polarization sensitivity in the compound eyes of the stomatopod crustacean Gonodactylus chiragra

Kleinlogel

Marshall

2006

Journal of Experimental Biology

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“…The responses of both the long wavelength-sensitive and short wavelength-sensitive retinular cells are affected by the polarization of the incident light (Waterman and Fernandez, 1970;Muller, 1973;Waterman, 1984). In addition, the lamina and medulla externa of the visual system demonstrate polarization sensitivity in four of the neuronal classes that make up the earliest stages of the visual pathway (Glantz, 1996a;Glantz, 1996b).…”

Section: Introductionmentioning

confidence: 99%

Polarization sensitivity in the red swamp crayfish Procambarus clarkii enhances the detection of moving transparent objects

Tuthill

Johnsen

2006

Journal of Experimental Biology

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SUMMARY We tested the hypothesis that polarization sensitivity enhances the detection of moving, transparent objects by examining the escape response of the red swamp crayfish (Procambarus clarkii Girard) from a visual threat. A transparent, birefringent target trans-illuminated by either partially linear polarized or unpolarized light was advanced toward individual crayfish. The optical axis of the target was aligned such that it would be conspicuous to a viewer with polarization sensitivity when trans-illuminated by polarized light. Under polarized light, significantly more crayfish retreated from the target than under unpolarized light of identical intensity(P<0.00005, Fisher's exact test). Whereas the potential for polarization sensitivity has been shown in neurophysiological and structural studies of the visual system of P. clarkii and the signal crayfish Pasifastacus leniusculus (Dana), our results provide the first behavioral evidence for polarization sensitivity among crayfish. The ecological function of this ability is unclear, but it may enhance the detection of fish with silvered scales, transparent zooplankton or macroinvertebrates. Because escape responses are generally more reliably induced than other behaviors, the method employed in this study may prove useful for examining sensory capabilities in other species.

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Cytologic and immunocytochemical findings of anaplastic large cell lymphoma

Choy

et al. 2002

Cancer

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E-Vector and wavelength discrimination by retinular cells of the crayfish Procambarus

Cited by 85 publications

References 41 publications

Electrophysiological evidence for linear polarization sensitivity in the compound eyes of the stomatopod crustacean Gonodactylus chiragra

Electrophysiological evidence for linear polarization sensitivity in the compound eyes of the stomatopod crustacean Gonodactylus chiragra

Polarization sensitivity in the red swamp crayfish Procambarus clarkii enhances the detection of moving transparent objects

Cytologic and immunocytochemical findings of anaplastic large cell lymphoma

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