{"doi":"10.5281/zenodo.14590582","title":"Longitudinal Displacement of Outer Hair Cells","abstract":"The height of the organ of Corti, near incompressibility of endolymph and perilymph, and features such as the Deiters’ cell phalangeal processes suggest that longitudinal displacement is relevant to the function of the cochlea. Our objective was to measure longitudinal displacements in the pillar cells (PC) and outer hair cells (OHC) at the reticular lamina surface. Measurements were performed on ex vivo gerbil cochleae in the first turn (best frequency 30 kHz to 40 kHz, N = 5) and second turn (best frequency 2 kHz to 4 kHz, N = 4). The measurements were made simultaneously using a stroboscopic imaging technique in response to a transverse point source driving the basilar membrane from the scala tympani side. The driving frequency range was 10 Hz to 42.5 kHz, spanning greater than the range of best frequencies for the locations measured. In both best frequency (BF) locations, the radial displacement magnitude and phase of the apex of the PC closely matched previous results of the inner hair cell stereocilia displacement 15. The longitudinal component of displacement of the apex of the PC was on average 20% of the magnitude of the PC radial displacement component. The OHC longitudinal displacement frequency response was similar to the PC radial displacement frequency response shape although it showed more spatial tuning variation at locations separated by 300 micrometers along the length of the cochlea. The magnitude at BF of the OHC longitudinal displacement was on average 70% of the magnitude of the PC radial displacement. The results suggest that longitudinal displacement in the organ of Corti is significant and may be functional to the operation and tuning of the cochlea. The difference in longitudinal displacement of the PC and OHCs suggests that the reticular lamina is more deformable than previously thought being more susceptible to bending and shearing in-plane.","journal":"Zenodo (CERN European Organization for Nuclear Research)","year":2025,"id":588025,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9517,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2025-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":800823,"name":"Laura Rupprecht","orcid":"0000-0002-7012-3116","position":1,"is_corresponding":false},{"id":565688,"name":"Kamal Sen","orcid":"0000-0002-9741-0836","position":2,"is_corresponding":false},{"id":1359840,"name":"J. Gregory McDaniel","orcid":"0000-0002-7980-2051","position":3,"is_corresponding":false},{"id":800822,"name":"Aleksandrs Zosuls","orcid":"0000-0001-6769-3460","position":0,"is_corresponding":true}],"reference_count":0,"raw_metadata":null,"created_at":"2026-07-19T02:59:43.096742Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}