Please assess the completion status of the following clinical trial:

Trial Title: Effects of Infrasound Exposure on Measures of Endolymphatic Hydrops

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~1. Age of 18 to 60 years~2. Absence of otologic symptoms based on screening questionnaire~3. Normal otoscopic examination~4. Audiometric thresholds less than 25 dB at 250, 500, 750, 1000 Hz.~Exclusion Criteria:~1. Age less than 18 or greater than 60 years. Age greater than 60 is considered an exclusion criterion as prior studies have demonstrated elevated VEMP thresholds attributed to age~2. Presence of any positive symptom on the questionnaire~3. Thresholds greater than 25 dB at the tested frequencies~4. Abnormal otoscopic examination (e.g., ear canal occlusion, tympanic membrane perforation, tympanic membrane retraction)~5. History of prior ear surgery.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: t

Study Arms:
- Block 1 (Type: None): Participants in the cohort will undergo testing in the order of: ECoG, oVEMP, cVEMP
- Block 2 (Type: None): Participants in the cohort will undergo testing in the order of: ECoG, cVEMP, oVEMP
- Block 3 (Type: None): Participants in the cohort will undergo testing in the order of: oVEMP, cVEMP, ECoG
- Block 4 (Type: None): Participants in the cohort will undergo testing in the order of: oVEMP, ECoG, cVEMP
- Block 5 (Type: None): Participants in the cohort will undergo testing in the order of: cVEMP, ECoG, oVEMP
- Block 6 (Type: None): Participants in the cohort will undergo testing in the order of: cVEMP, oVEMP, ECoG

Based on this trial design, predict the completion outcome and termination type (if applicable).