Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Rotational Motion about a Fixed Axis01:26

Rotational Motion about a Fixed Axis

1.7K
A rigid body's rotation around a fixed axis makes every point within it trace a circular path around a specific line or point. The term given to this type of spinning is defined by the angular position, symbolized by the angle θ. This angle is gauged from a static reference line to the revolving object. From this angular position, any variation is referred to as angular displacement, denoted by dθ. The extent of this displacement can be calculated in degrees, radians, or...
1.7K
Deformation in a Circular Shaft01:10

Deformation in a Circular Shaft

1.0K
One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
1.0K
Angle of Twist: Problem Solving01:13

Angle of Twist: Problem Solving

841
An electric motor applies a torque of 700 N·m to an aluminum shaft, triggering a stable rotation. Two pulleys, B and C, are subjected to torques of 300 N·m and 400 N·m, respectively. The modulus of rigidity is provided as 25 GPa. With the knowledge of the length and diameter of each segment, the twist angle between the two pulleys can be computed. First, a section cut is made between pulleys B and C, and the cut cross-section is analyzed using a free-body diagram. Given that the torque...
841
Residual Stresses in Circular Shafts01:10

Residual Stresses in Circular Shafts

581
In materials that exhibit elastic and plastic behavior, known as elastoplastic materials, residual stresses can accumulate when these materials experience plastic deformation. This deformation arises from either high levels of shearing stress or significant strains. Residual stresses are internal stresses that persist within a material after removing the external force causing deformation. This phenomenon is demonstrated when observing the behavior of a shaft under torque; notably, the...
581
Gyroscope01:02

Gyroscope

4.4K
A gyroscope is defined as a spinning disk in which the axis of rotation is free to assume any orientation. When spinning, the orientation of the spin axis is unaffected by the orientation of the body that encloses it. The body or vehicle enclosing the gyroscope can be moved from place to place, while the orientation of the spin axis remains the same. This makes gyroscopes very useful in navigation, especially where magnetic compasses cannot be used, such as in crewed and crewless spacecraft,...
4.4K
Angle of Twist - Elastic Range01:13

Angle of Twist - Elastic Range

874
Consider a cylindrical shaft with a length denoted by L and a consistent cross-sectional radius referred to as r. This shaft undergoes a torque at the free end. The highest shearing strain within the shaft is directly proportional to the twist angle and the radial distance from the shaft axis. When the shaft behaves elastically, this shearing strain can be articulated using variables such as the applied torque, radial distance, the polar moment of inertia, and the modulus of rigidity. By...
874

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Neuroimaging to detect cortical projection of vestibular response to caloric stimulation in young and older adults using functional near-infrared spectroscopy (fNIRS).

NeuroImage·2013
Same author

Space and motion discomfort and abnormal balance control in patients with anxiety disorders.

Journal of neurology, neurosurgery, and psychiatry·2008
Same author

Practice parameter: therapies for benign paroxysmal positional vertigo (an evidence-based review): report of the Quality Standards Subcommittee of the American Academy of Neurology.

Neurology·2008
Same author

Vestibular rehabilitation using a wide field of view virtual environment.

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference·2007
Same author

Cognitive requirements for vestibular and ocular motor processing in healthy adults and patients with unilateral vestibular lesions.

Journal of cognitive neuroscience·2005
Same author

Migraine-anxiety related dizziness (MARD): a new disorder?

Journal of neurology, neurosurgery, and psychiatry·2004
Same journal

Preface.

Handbook of clinical neurology·2026
Same journal

Foreword.

Handbook of clinical neurology·2026
Same journal

Fundus autofluorescence imaging.

Handbook of clinical neurology·2026
Same journal

The electroretinogram as a means to study the physiology of the retina.

Handbook of clinical neurology·2026
Same journal

Adaptive optics scanning light ophthalmoscopy.

Handbook of clinical neurology·2026
Same journal

Modeling the human retina in a dish: Advances and future directions.

Handbook of clinical neurology·2026
See all related articles

Related Experiment Video

Updated: Mar 15, 2026

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
05:02

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction

Published on: August 30, 2019

7.8K

Rotational testing.

J M Furman1

  • 1Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA, USA.

Handbook of Clinical Neurology
|September 18, 2016
PubMed
Summary
This summary is machine-generated.

Head rotation stimulates the vestibular system, influencing eye movements through the vestibulo-ocular reflex (VOR). Rotational testing, including head impulse testing (HIT), assesses semicircular canal function, though often in research settings.

More Related Videos

Method to Measure Tone of Axial and Proximal Muscle
10:41

Method to Measure Tone of Axial and Proximal Muscle

Published on: December 14, 2011

18.1K
Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
08:38

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Published on: April 18, 2019

33.2K

Related Experiment Videos

Last Updated: Mar 15, 2026

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
05:02

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction

Published on: August 30, 2019

7.8K
Method to Measure Tone of Axial and Proximal Muscle
10:41

Method to Measure Tone of Axial and Proximal Muscle

Published on: December 14, 2011

18.1K
Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
08:38

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Published on: April 18, 2019

33.2K

Area of Science:

  • Neuroscience
  • Vestibular System Physiology

Background:

  • The semicircular canals and otolith organs are key components of the vestibular system, responding to head movements.
  • Vestibular stimulation naturally triggers eye movements via the vestibulo-ocular reflex (VOR).

Purpose of the Study:

  • To discuss clinically relevant rotational stimuli for vestibular assessment.
  • To review various rotational testing methods, particularly those used in research settings.

Main Methods:

  • Rotational testing involves measuring eye movements, often using video systems, or relying on subjective motion perception.
  • Common methods include computer-controlled sinusoidal or trapezoidal stimuli during earth-vertical axis rotation (EVAR).
  • Head impulse testing (HIT) is a newer method assessing individual horizontal semicircular canals through manual impulsive rotations.

Main Results:

  • EVAR primarily stimulates the horizontal semicircular canals bilaterally.
  • HIT specifically assesses the function of individual horizontal semicircular canals.
  • Many rotational stimuli are not standard clinical practice but are valuable in research.

Conclusions:

  • Rotational testing is crucial for understanding vestibular function and VOR.
  • While some methods like EVAR and HIT are primarily research tools, they offer insights into semicircular canal function.
  • The choice of rotational stimulus depends on the specific motion trajectory and the receptors being investigated.