{"id":{"repo_id":"ku","oai_identifier":"oai:kuscholarworks.ku.edu:1808/10655"},"canonical_url":"https://search.dev.ndltd.org/etd/ku/oai:kuscholarworks.ku.edu:1808/10655","repository":{"repo_id":"ku","name":"University of Kansas","base_url":"https://kuscholarworks.ku.edu/server/oai/request"},"display":{"title":"The Cochlear Labyrinth of Krapina Neandertals","abstract":"This study presents measurements of the cochlear labyrinth of Krapina Neandertals based on ultra high-resolution computed tomography. The cochlea, a membranous, fluid-filled structure, houses the sensory end organ of the auditory system. Located within the inner ear, the cochlea occupies a spiral shaped cavity within the bony labyrinth of the petrous bone. The close anatomical relationship between the membranous cochlea and the bony cochlear labyrinth allows for the determination of cochlear size from fossil specimens. Recent studies with extant primate taxa suggest that cochlear labyrinth volume is functionally related to the range of audible frequencies. Specifically, cochlear volume is negatively correlated with both the high and low frequency limits of hearing so that the smaller the cochlea, the higher the range of audible frequencies. This study shows that the Krapina Neandertals' cochlear volumes are similar to modern Homo sapiens and larger than chimpanzee and gorilla cochlear volumes. Although the nature of the relationship between cochlear volume and hearing abilities remains speculative, the measured cochlear volume in Krapina Neandertals suggests they had a range of audible frequencies that is similar to the modern human range.","abstract_html":"This study presents measurements of the cochlear labyrinth of Krapina Neandertals based on ultra high-resolution computed tomography. The cochlea, a membranous, fluid-filled structure, houses the sensory end organ of the auditory system. Located within the inner ear, the cochlea occupies a spiral shaped cavity within the bony labyrinth of the petrous bone. The close anatomical relationship between the membranous cochlea and the bony cochlear labyrinth allows for the determination of cochlear size from fossil specimens. Recent studies with extant primate taxa suggest that cochlear labyrinth volume is functionally related to the range of audible frequencies. Specifically, cochlear volume is negatively correlated with both the high and low frequency limits of hearing so that the smaller the cochlea, the higher the range of audible frequencies. This study shows that the Krapina Neandertals' cochlear volumes are similar to modern Homo sapiens and larger than chimpanzee and gorilla cochlear volumes. Although the nature of the relationship between cochlear volume and hearing abilities remains speculative, the measured cochlear volume in Krapina Neandertals suggests they had a range of audible frequencies that is similar to the modern human range.","abstract_has_math":false,"creators":["Beals, Michaela Eve"],"institution":"University of Kansas","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Frayer, David W."],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-05-31","date_published":"2012-05-31","updated_at":"2026-07-24T02:47:15Z","subjects":["Physical anthropology","Auditory capability","Cochlea","Computed tomography","Neandertal"],"languages":["en"],"rights":["This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["http://dissertations.umi.com/ku:12071"],"render_values":[{"text":"http://dissertations.umi.com/ku:12071","href":"http://dissertations.umi.com/ku:12071","code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/1808/10655","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Frayer, David W."]},{"key":"dc:creator","label":"Author","values":["Beals, Michaela Eve"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2013-01-20T16:15:09Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2013-01-20T16:15:09Z"]},{"key":"dc:date.issued","label":"Date","values":["2012-05-31"]},{"key":"dc:publisher","label":"Institution","values":["University of Kansas"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Physical anthropology","Auditory capability","Cochlea","Computed tomography","Neandertal"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["http://dissertations.umi.com/ku:12071"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/1808/10655"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This study presents measurements of the cochlear labyrinth of Krapina Neandertals based on ultra high-resolution computed tomography. The cochlea, a membranous, fluid-filled structure, houses the sensory end organ of the auditory system. Located within the inner ear, the cochlea occupies a spiral shaped cavity within the bony labyrinth of the petrous bone. The close anatomical relationship between the membranous cochlea and the bony cochlear labyrinth allows for the determination of cochlear size from fossil specimens. Recent studies with extant primate taxa suggest that cochlear labyrinth volume is functionally related to the range of audible frequencies. Specifically, cochlear volume is negatively correlated with both the high and low frequency limits of hearing so that the smaller the cochlea, the higher the range of audible frequencies. This study shows that the Krapina Neandertals' cochlear volumes are similar to modern Homo sapiens and larger than chimpanzee and gorilla cochlear volumes. Although the nature of the relationship between cochlear volume and hearing abilities remains speculative, the measured cochlear volume in Krapina Neandertals suggests they had a range of audible frequencies that is similar to the modern human range."]},{"key":"dc:title","label":"Title","values":["The Cochlear Labyrinth of Krapina Neandertals"]}]}],"canonical_facts":{"dc:contributor.advisor":["Frayer, David W."],"dc:creator":["Beals, Michaela Eve"],"dc:date.accessioned":["2013-01-20T16:15:09Z"],"dc:date.available":["2013-01-20T16:15:09Z"],"dc:date.issued":["2012-05-31"],"dc:description.abstract":["This study presents measurements of the cochlear labyrinth of Krapina Neandertals based on ultra high-resolution computed tomography. The cochlea, a membranous, fluid-filled structure, houses the sensory end organ of the auditory system. Located within the inner ear, the cochlea occupies a spiral shaped cavity within the bony labyrinth of the petrous bone. The close anatomical relationship between the membranous cochlea and the bony cochlear labyrinth allows for the determination of cochlear size from fossil specimens. Recent studies with extant primate taxa suggest that cochlear labyrinth volume is functionally related to the range of audible frequencies. Specifically, cochlear volume is negatively correlated with both the high and low frequency limits of hearing so that the smaller the cochlea, the higher the range of audible frequencies. This study shows that the Krapina Neandertals' cochlear volumes are similar to modern Homo sapiens and larger than chimpanzee and gorilla cochlear volumes. Although the nature of the relationship between cochlear volume and hearing abilities remains speculative, the measured cochlear volume in Krapina Neandertals suggests they had a range of audible frequencies that is similar to the modern human range."],"dc:identifier.other":["http://dissertations.umi.com/ku:12071"],"dc:identifier.uri":["https://hdl.handle.net/1808/10655"],"dc:language.iso":["en"],"dc:publisher":["University of Kansas"],"dc:rights":["This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author."],"dc:subject":["Physical anthropology","Auditory capability","Cochlea","Computed tomography","Neandertal"],"dc:title":["The Cochlear Labyrinth of Krapina Neandertals"],"dc:type":["Thesis"]},"updated_at":"2026-07-24T02:47:15Z"}