Neural mechanisms in insect navigation: polarization compass and odometer
Insect navigation relies on path integration, a procedure by which information about compass bearings pursued and distances travelled are combined to calculate position. Three neural levels of the polarization compass, which uses the polarization of skylight as a reference, have been analyzed in ort...
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| Veröffentlicht in: | Current Opinion in Neurobiology 2002-12, Vol.12 (6), p.707-714 |
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| creator | Labhart, Thomas Meyer, Eric P |
| description | Insect navigation relies on path integration, a procedure by which information about compass bearings pursued and distances travelled are combined to calculate position. Three neural levels of the polarization compass, which uses the polarization of skylight as a reference, have been analyzed in orthopteran insects. A group of dorsally directed, highly specialized ommatidia serve as polarization sensors. Polarization-opponent neurons in the optic lobe condition the polarization signal by removing unreliable and irrelevant components of the celestial stimulus. Neurons found in the central complex of the brain possibly represent elements of the compass output. The odometer for measuring travelling distances in honeybees relies on optic flow experienced during flight, whereas desert ants most probably use proprioreceptive cues.
Insects navigate with high precision by continuously keeping track of directions and distances travelled; recent findings shed light on the mechanisms underlying the polarization compass and the odometer that are employed. |
| doi_str_mv | 10.1016/S0959-4388(02)00384-7 |
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Insects navigate with high precision by continuously keeping track of directions and distances travelled; recent findings shed light on the mechanisms underlying the polarization compass and the odometer that are employed.</description><subject>Animals</subject><subject>Ants</subject><subject>Bees</subject><subject>Cues</subject><subject>Distance Perception - physiology</subject><subject>Insecta</subject><subject>insects</subject><subject>Models, Neurological</subject><subject>navigation</subject><subject>Neural Pathways - physiology</subject><subject>odometer</subject><subject>Optic Lobe, Nonmammalian</subject><subject>Orientation - physiology</subject><subject>Orthoptera</subject><subject>polarization compass</subject><subject>Space Perception - physiology</subject><subject>spiders</subject><issn>0959-4388</issn><issn>1873-6882</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkEtr3DAQgEVp6G4eP6HFp5IcnIxeltxLCEseC0tyaHIWsjTbqtjWVvIGkl9f74PmuDDMMMw3M_AR8pXCJQVaXf2EWtal4FqfA7sA4FqU6hOZUq14WWnNPpPpf2RCjnP-AwAV1_wLmVAmamAVn5L5I66TbYsO3W_bh9zlIvRjZHRD0dvX8MsOIfY_ilVsbQrv265wsVvZnAvb-yL62OGA6ZQcLW2b8WxfT8jL3e3z7KFcPN3PZzeL0kkKQ1mLJRVSAaAEKqmvYNnourKUetF4VByReSVpM04EolBay6amCJw1YB3yE_J9d3eV4t815sF0ITtsW9tjXGejmKq5BnkQpLpiYkwjKHegSzHnhEuzSqGz6c1QMBvZZivbbEwaYGYr26hx79v-wbrp0H9s7e2OwPUOwNHHa8BksgvYO_QhjX6Nj-HAi398mI6g</recordid><startdate>20021201</startdate><enddate>20021201</enddate><creator>Labhart, Thomas</creator><creator>Meyer, Eric P</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7SS</scope><scope>7TK</scope><scope>7X8</scope></search><sort><creationdate>20021201</creationdate><title>Neural mechanisms in insect navigation: polarization compass and odometer</title><author>Labhart, Thomas ; Meyer, Eric P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c510t-94f145700e50151d60fb896a11d4bde73ee2d751bd604ee47885b91e032b0ace3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Animals</topic><topic>Ants</topic><topic>Bees</topic><topic>Cues</topic><topic>Distance Perception - physiology</topic><topic>Insecta</topic><topic>insects</topic><topic>Models, Neurological</topic><topic>navigation</topic><topic>Neural Pathways - physiology</topic><topic>odometer</topic><topic>Optic Lobe, Nonmammalian</topic><topic>Orientation - physiology</topic><topic>Orthoptera</topic><topic>polarization compass</topic><topic>Space Perception - physiology</topic><topic>spiders</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Labhart, Thomas</creatorcontrib><creatorcontrib>Meyer, Eric P</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Current Opinion in Neurobiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Labhart, Thomas</au><au>Meyer, Eric P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Neural mechanisms in insect navigation: polarization compass and odometer</atitle><jtitle>Current Opinion in Neurobiology</jtitle><addtitle>Curr Opin Neurobiol</addtitle><date>2002-12-01</date><risdate>2002</risdate><volume>12</volume><issue>6</issue><spage>707</spage><epage>714</epage><pages>707-714</pages><issn>0959-4388</issn><eissn>1873-6882</eissn><abstract>Insect navigation relies on path integration, a procedure by which information about compass bearings pursued and distances travelled are combined to calculate position. Three neural levels of the polarization compass, which uses the polarization of skylight as a reference, have been analyzed in orthopteran insects. A group of dorsally directed, highly specialized ommatidia serve as polarization sensors. Polarization-opponent neurons in the optic lobe condition the polarization signal by removing unreliable and irrelevant components of the celestial stimulus. Neurons found in the central complex of the brain possibly represent elements of the compass output. The odometer for measuring travelling distances in honeybees relies on optic flow experienced during flight, whereas desert ants most probably use proprioreceptive cues.
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| ispartof | Current Opinion in Neurobiology, 2002-12, Vol.12 (6), p.707-714 |
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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Animals Ants Bees Cues Distance Perception - physiology Insecta insects Models, Neurological navigation Neural Pathways - physiology odometer Optic Lobe, Nonmammalian Orientation - physiology Orthoptera polarization compass Space Perception - physiology spiders |
| title | Neural mechanisms in insect navigation: polarization compass and odometer |
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