{"id":2069,"date":"2019-11-10T14:08:59","date_gmt":"2019-11-10T04:08:59","guid":{"rendered":"https:\/\/www.cognav.net\/?p=2069"},"modified":"2019-11-10T14:13:14","modified_gmt":"2019-11-10T04:13:14","slug":"how-freely-swimming-teleost-fish-collect-and-compute-metric-spatial-information-underwater","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=2069","title":{"rendered":"How freely-swimming teleost fish collect and compute metric spatial information underwater?"},"content":{"rendered":"<p style=\"text-align: justify;\">Cecilia Karlsson, Jay Willis, Matishalin Patel, Theresa Burt de Perera. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/834341v1\"><strong>Teleost fish can accurately estimate distance travelled<\/strong><\/a>. doi: https:\/\/doi.org\/10.1101\/834341<\/p>\n<p style=\"text-align: justify;\">Abstract<br \/>\n&#8220;<strong><span style=\"color: #ff0000;\">Terrestrial animals compute shortcuts through their environment by integrating self-motion vectors containing distance and direction information.<\/span><\/strong> The sensory and neural mechanisms underlying this navigational feat have been extensively documented, but their evolutionary origins remain unexplored. Among extant vertebrates, the teleost fish make up one of the most diverse and earliest-branching phylogenetic groups, and provide a powerful system to study the origins of vertebrate spatial processing. However, <strong><span style=\"color: #ff0000;\">how freely-swimming teleost fish collect and compute metric spatial information underwater are unknown<\/span><\/strong>. Using the Picasso triggerfish, Rhinecanthus aculeatus, <span style=\"color: #ff0000;\"><strong>we investigate the functional and mechanistic basis of distance estimation in teleost fish for the first time.<\/strong><\/span> We show that <strong><span style=\"color: #ff0000;\">a fish can learn and remember distance traveled with remarkable accuracy<\/span><\/strong>. By analysing swimming trajectories, we form hypotheses about <span style=\"color: #ff0000;\"><strong>how distance is represented in the teleost brain<\/strong><\/span>, and propose that <strong><span style=\"color: #ff0000;\">distance may be encoded by dedicated neural structures<\/span><\/strong> in a similar way to terrestrial vertebrates. Finally, we begin exploring the sensory mechanisms underlying distance estimation in fish. Many walking animals use a step counter for odometry. By quantifying finbeat use during our distance task, we show that a functionally equivalent finbeat counter is unlikely to provide reliable and precise distance information in an aquatic environment.&#8221;<\/p>\n<p style=\"text-align: justify;\">Cecilia Karlsson, Jay Willis, Matishalin Patel, Theresa Burt de Perera. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/834341v1\"><strong>Teleost fish can accurately estimate distance travelled<\/strong><\/a>. doi: https:\/\/doi.org\/10.1101\/834341<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cecilia Karlsson, Jay Willis, Matishalin Patel, Theresa Burt de Perera. Teleost fish can accurately estimate distance travelled. doi: https:\/\/doi.org\/10.1101\/834341 Abstract &#8220;Terrestrial animals compute shortcuts through their environment by integrating self-motion vectors containing distance and direction information. The sensory and neural mechanisms underlying this navigational feat have been extensively documented, but their evolutionary origins remain unexplored. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96,419],"tags":[437,573,511],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2069"}],"collection":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2069"}],"version-history":[{"count":2,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2069\/revisions"}],"predecessor-version":[{"id":2071,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2069\/revisions\/2071"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2069"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2069"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}