Related Experiment Video
Updated: Jun 7, 2026
06:31
Estimating Vestibular Perceptual Thresholds Using a Six-Degree-Of-Freedom Motion Platform
Published on: August 4, 2022
Age-related changes in vestibular evoked myogenic potentials using a modified blood pressure manometer feedback
Brandon M Tourtillott1, John A Ferraro, Ali Bani-Ahmed
1University of Kansas Medical Center, Kansas City, USA. btourtillott@gmail.com
American Journal of Audiology
|October 23, 2010
Summary
Vestibular evoked myogenic potential (VEMP) tests show reduced amplitude and higher thresholds in older adults. Age-specific VEMP data is crucial for accurate clinical interpretation in aging populations.
Area of Science:
- Audiology
- Neuroscience
- Gerontology
Background:
- Vestibular evoked myogenic potentials (VEMPs) assess otolith and vestibulospinal pathway function.
- Age-related changes in vestibular function are not fully characterized.
- Standardized methods for sternocleidomastoid (SCM) muscle monitoring are needed.
Purpose of the Study:
- To collect age-specific VEMP data in healthy adults.
- To characterize age-related differences in VEMP parameters.
- To evaluate a modified blood pressure manometer (BPM) method for SCM muscle monitoring.
Main Methods:
- VEMPs were recorded from 23- to 84-year-old healthy adults.
- Participants were grouped by age.
- VEMP parameters (latency, threshold, amplitude, IAD) were measured using a BPM method at 130 dB SPL.
Main Results:
- Significant differences in VEMP amplitude and threshold were found between young and older adult groups.
- VEMP amplitude decreased, and thresholds increased with age.
- No significant differences in P1/N1 latencies or IAD ratios were observed.
Conclusions:
- Healthy older individuals exhibit a decline in VEMP amplitude and an increase in VEMP thresholds.
- Normative age-specific VEMP data are essential for clinical interpretation in aging populations.
- The BPM method offers a viable alternative for SCM muscle control in VEMP testing.
More Related Videos
Related Concept Videos
01:28Special considerations while measuring blood pressure
When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
01:30Equipments Used To Measure Blood Pressure
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
01:17Measurement of Blood Pressure
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.
01:15Assessment of blood pressure in brachial artery(one-step method)
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
01:29The Vestibular System
The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
01:23Assessment of blood pressure in brachial artery(two-step method)
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...