{"id":"https://openalex.org/G3144224388","display_name":"Physiologically Derived DPOAE Measurement Methods","description":"PROJECT NARRATIVE Distortion-product otoacoustic emission (DPOAE) testing provides an objective and noninvasive measure for evaluating the health of a common site of age-related decline in the auditory system \u2013 the outer hair cells. We contend that the test performance of DPOAEs can be improved significantly by aligning the methods to evoke them with known, place-specific mechanical properties of the mammalian cochlea. In this project, stimulus frequencies and levels will be adjusted in a frequency-specific manner to maximize DPOAE generation and improve test performance for both screening for hearing loss and predicting hearing thresholds.","funder_award_id":"F32DC016773","funder":{"id":"https://openalex.org/F4320337352","display_name":"National Institute on Deafness and Other Communication Disorders","doi":"10.13039/100000055"},"funded_outputs":["https://openalex.org/W4289313678","https://openalex.org/W4384282499","https://openalex.org/W4403476798"],"funded_outputs_count":3,"parent_awards":[],"sub_awards":[],"sub_awards_count":0,"amount":null,"currency":"USD","amount_usd":null,"amount_usd_basis":null,"recipients":[],"recipient_countries":[],"recipient_regions":[],"research_scope":null,"funding_type":"fellowship","funder_scheme":"F32","start_date":"2017-09-01","end_date":"2019-08-31","start_year":2017,"end_year":2019,"landing_page_url":"https://reporter.nih.gov/project-details/9626808","doi":null,"provenance":"nih_exporter","lead_investigator":{"given_name":"SAMANTHA MARIE","family_name":"STIEPAN","orcid":null,"role_start":null,"affiliation":{"name":"NORTHWESTERN UNIVERSITY","country":"UNITED STATES","ids":null}},"co_lead_investigator":null,"investigators":null,"works_api_url":"https://api.openalex.org/works?filter=awards.id:G3144224388","primary_topic":{"id":"https://openalex.org/T10334","display_name":"Hearing, Cochlea, Tinnitus, Genetics","score":0.9941,"subfield":{"id":"https://openalex.org/subfields/2809","display_name":"Sensory Systems"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10334","display_name":"Hearing, Cochlea, Tinnitus, Genetics","score":0.9941,"subfield":{"id":"https://openalex.org/subfields/2809","display_name":"Sensory Systems"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"institution_awarded":[{"id":"https://openalex.org/I111979921","display_name":"Northwestern University","ror":"https://ror.org/000e0be47","country_code":"US","type":"education","lineage":["https://openalex.org/I111979921"]}],"updated_date":"2026-10-15T03:01:03.000Z","created_date":"2026-10-09T19:56:01.000Z"}