Hidden hearing loss
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. No history of genetic or drug-related hearing loss, head trauma, or ear disease; 2. No history of exposure to chemical reagents or heavy metals; 3. Normal frequency pure tone hearing test (0.5, 1, 2, 3, 4, 6, 8 kHz) average threshold <= 20dB HL, normal acoustic impedance, and DPOAE are all elicited; 4. Age 19-35 years old.
Exclusion criteria
Exclusion criteria: 1. Obvious health problems that may affect the results; 2. Deemed inappropriate by the researcher (unable to cooperate with the data collection process; any other substantiated subjective reasons).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ABR I wave amplitude ;ECochG SP/AP; | — |
Secondary
| Measure | Time frame |
|---|---|
| ABR V wave amplitude;ABR I wave amplitude /ABR V wave amplitude;Speech audiometry in noisy environments ;High frequency threshold;FFR response amplitude; | — |
Countries
China
Contacts
Tangdu Hospital