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https://hdl.handle.net/2440/46250
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dc.contributor.author | Nordstrom, K. | - |
dc.contributor.author | Barnett, P. | - |
dc.contributor.author | Moyer, I. | - |
dc.contributor.author | Brinkworth, R. | - |
dc.contributor.author | O'Carroll, D. | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Current Biology, 2008; 18(9):661-667 | - |
dc.identifier.issn | 0960-9822 | - |
dc.identifier.issn | 1879-0445 | - |
dc.identifier.uri | http://hdl.handle.net/2440/46250 | - |
dc.description | Copyright © 2008 Cell Press | - |
dc.description.abstract | Many insects perform high-speed aerial maneuvers in which they navigate through visually complex surrounds. Among insects, hoverflies stand out, with males switching from stationary hovering to high-speed pursuit at extreme angular velocities [1]. In dipterans, 50-60 large interneurons -- the lobula-plate tangential cells (LPTCs) -- detect changes in optic flow experienced during flight [2-5]. It has been predicted that large LPTC receptive fields are a requirement of accurate "matched filters" of optic flow [6]. Whereas many fly taxa have three horizontal system (HS) LPTC neurons in each hemisphere, hoverflies have four [7], possibly reflecting the more sophisticated flight behavior. We here show that the most dorsal hoverfly neuron (HS north [HSN]) is sexually dimorphic, with the male receptive field substantially smaller than in females or in either sex of blowflies. The (hoverfly-specific) HSN equatorial (HSNE) is, however, sexually isomorphic. Using complex optic flow, we show that HSN, despite its smaller receptive field, codes yaw velocity as well as HSNE. Responses to a target moving against a plain or textured background suggest that the male HSN could potentially play a role in target pursuit under some conditions. | - |
dc.description.statementofresponsibility | Karin Nordström, Paul D. Barnett, Irene M. Moyer de Miguel, Russell S.A. Brinkworth, and David C. O'Carroll | - |
dc.language.iso | en | - |
dc.publisher | Dell Press | - |
dc.source.uri | http://www.current-biology.com/content/article/abstract?uid=PIIS0960982208005204 | - |
dc.subject | Neurons | - |
dc.subject | Animals | - |
dc.subject | Diptera | - |
dc.subject | Motion Perception | - |
dc.subject | Sex Characteristics | - |
dc.subject | Flight, Animal | - |
dc.subject | Female | - |
dc.subject | Male | - |
dc.subject | Optic Lobe, Nonmammalian | - |
dc.title | Sexual dimorphism in the hoverfly motion vision pathway | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.cub.2008.03.061 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | O'Carroll, D. [0000-0002-2352-4320] | - |
Appears in Collections: | Aurora harvest Physiology publications |
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