1988
DOI: 10.1038/332356a0
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Motion cues provide the bee's visual world with a third dimension

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Cited by 227 publications
(96 citation statements)
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“…Honeybees appear to have only two mechanisms of depth perception. One is to rely on the projected retinal size of an object, and the other is motion parallax (Lehrer, Srinivasan, Zhang, & Horridge, 1988;Srinivasan, Lehrer, Zhang, & Horridge, 1989). In following the expansion and contraction of arrays of landmarks and of single landmarks, then, the honeybees are shown to rely heavily on projected retinal size as a mechanism of judging distance.…”
Section: Discussionmentioning
confidence: 99%
“…Honeybees appear to have only two mechanisms of depth perception. One is to rely on the projected retinal size of an object, and the other is motion parallax (Lehrer, Srinivasan, Zhang, & Horridge, 1988;Srinivasan, Lehrer, Zhang, & Horridge, 1989). In following the expansion and contraction of arrays of landmarks and of single landmarks, then, the honeybees are shown to rely heavily on projected retinal size as a mechanism of judging distance.…”
Section: Discussionmentioning
confidence: 99%
“…To safely fly in cluttered environments, insects instead rely on image motion, also known as optic flow 38,39 , generated by their own displacement relative to the surroundings 40 . It has been experimentally shown that their neural system reacts to optic flow patterns 41,42 to produce a large variety of flight capabilities, such as obstacle avoidance 40,43 , speed maintenance 44 , odometry estimation 45 , wall following and corridor centring 46 , altitude regulation 47,48 , orientation control 49 and landing 50,51 . Optic flow intensity is proportional to the distance from objects only during translational movements, but not during rotational movements when it is proportional to the rotational velocity of the agent.…”
Section: Review Insightmentioning
confidence: 99%
“…For example, honeybeesÂŻying through a tunnel maintain equidistance from the side walls by balancing the velocities of the images on the two eyes, even when the walls carry gratings of dierent spatial periods (Kirchner and Srinivasan 1989;Srinivasan et al 1991). Bees can use image motion to distinguish objects at dierent distances, independently of their absolute size (Lehrer et al 1988;Kirchner and Srinivasan 1989); they can also distinguish objects of dierent absolute sizes, irrespective of their ranges (Horridge et al 1992). These Âźndings imply that bees can disentangle size cues from velocity cues, and measure the two parameters independently.…”
Section: Discussionmentioning
confidence: 99%