Lateral eyes direct principal eyes as jumping spiders track objects
نویسندگان
چکیده
منابع مشابه
Ultraviolet and green receptors in principal eyes of jumping spiders
Spectral sensitivities of cells in principal eyes of the jumping spider Phidippus reqius were measured using techniques of intracellular recording. Three types of cells were found. UV cells had peak sensitivities at 370 nm and were over 4 log units less sensitive at wavelengths longer than 460 nm. Green-sensitive cells had spectral sensitivities which were well fit by nomogram curves peaking at...
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Jumping spiders (Salticidae) are renowned for their high performing visual system. In addition to their prominent forward-facing telescope-like principal eyes, salticids possess two or three pairs of secondary eyes used for wide-angle motion detection. Salticids orient towards relevant sources of motion detected by the secondary eyes, enabling them to inspect the stimulus with their spatially a...
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Properties of single cells in the posterior lateral (PL) eyes of the jumping spider Plexippus validus are described. Only one spectral class of cells was encountered and the spectra sensitivity was indistinguishable from that measured from the ERG, both peaking at ca. 535 nm. Angular sensi tivity (width of angular sensitivity function at the 50% level) averaged .89° ± .12°, the smallest value ...
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Jumping spiders, or salticids, sample their environment using a combination of two types of eyes. The forward-facing pair of 'principal' eyes have narrow fields of view, but exceptional spatial resolution, while the two or three pairs of 'secondary' eyes have wide fields of view and function especially well as motion analysers. Motion detected by the secondary eyes may elicit an orienting respo...
متن کاملStepping movements made by jumping spiders during turns mediated by the lateral eyes.
Jumping spiders use their four lateral eyes when making turns towards moving objects. Once a stimulus has been detected by the retina of one of these eyes, the spider turns accurately through the appropriate angle, whether or not it receives the visual feed-back it would expect from its movements (Land, 1971). Since this is an 'openloop ' system, each region of the retinae is capable of specify...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2018
ISSN: 0960-9822
DOI: 10.1016/j.cub.2018.07.065