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

Equilibrium and Balance01:15

Equilibrium and Balance

4.9K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
4.9K
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

398
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
398
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

249
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
249
Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

391
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
391
Equation of Motion: General Plane motion01:22

Equation of Motion: General Plane motion

257
In the context of a rigid body's movement within a general plane, it is important to understand that this motion is typically triggered by external forces or couple moments exerted onto it. This principle can be explained through Newton's second law, which stipulates the translational motion of the body's center of mass along each axis.
Moreover, the body's center of mass experiences a rotational effect as a result of these couple moments. This rotation can be articulated as the...
257
The Vestibular System01:29

The Vestibular System

39.9K
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.
39.9K

You might also read

Related Articles

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

Sort by
Same author

A Flash in the Pan? Distractor Suppression Cannot Be Inferred from the Early Lateralized Positivity.

Journal of cognitive neuroscience·2025
Same author

The consequences of color chromaticity on electrophysiological measures of attentional deployment in visual search.

iScience·2025
Same author

Toward an Asian-based bodily movement database for emotional communication.

Behavior research methods·2024
Same author

Repetition of critical search features modulates EEG lateralized potentials in visual search.

Cerebral cortex (New York, N.Y. : 1991)·2024
Same author

Watercolor spreading in Bridget Riley's and Piet Mondrian's op-art placed in the context of recent watercolor studies.

Journal of vision·2024
Same author

Arousal, interindividual differences and temporal binding a psychophysiological study.

Psychological research·2024

Related Experiment Video

Updated: Aug 11, 2025

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm
06:30

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

Published on: April 28, 2020

5.9K

Body Pitch Together With Translational Body Motion Biases the Subjective Haptic Vertical.

Chia-Huei Tseng1, Hiu Mei Chow2, Lothar Spillmann3

  • 1Research Institute of Electrical Communication, Tohoku University, Sendai, 980-8577, Japan.

Multisensory Research
|February 2, 2023
PubMed
Summary

Perception of verticality is skewed on slopes, even with eyes closed. This subjective haptic vertical bias results from combined body pitch and motion, impacting real-world navigation.

More Related Videos

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions
09:46

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions

Published on: May 10, 2012

12.7K
Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
10:12

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Published on: May 23, 2013

16.0K

Related Experiment Videos

Last Updated: Aug 11, 2025

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm
06:30

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm

Published on: April 28, 2020

5.9K
MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions
09:46

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions

Published on: May 10, 2012

12.7K
Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
10:12

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

Published on: May 23, 2013

16.0K

Area of Science:

  • Neuroscience
  • Human Perception
  • Biomechanics

Background:

  • Accurate perception of verticality is crucial for balance and interaction.
  • Real-world conditions involve dynamic interactions between body orientation and self-motion, unlike controlled lab settings.
  • Previous research often isolates visual or vestibular inputs, not their combined effect in naturalistic scenarios.

Purpose of the Study:

  • To investigate the subjective haptic vertical (SHV) in a real-world scenario using a mountain tram.
  • To quantify the bias in verticality perception under varying slopes and conditions.
  • To identify the contributing factors to SHV errors in dynamic, naturalistic environments.

Main Methods:

  • Conducted a field experiment on the Hong Kong Peak Tram with slopes from 6° to 26°.
  • Tested participants with eyes open and closed, and with controlled body pitch adjustments.
  • Included control experiments on level ground and static inclined surfaces.

Main Results:

  • A significant bias in subjective haptic vertical (SHV) was observed, increasing with slope by up to 15°.
  • This bias persisted regardless of whether participants' eyes were open or closed.
  • Attempts to compensate for slope by adjusting body pitch did not reduce the bias, ruling out absolute body pitch as the sole cause.

Conclusions:

  • The observed SHV error is attributed to a combination of significant, dynamic body pitch and translational motion.
  • These findings highlight the importance of studying perceived verticality under realistic field conditions.
  • Awareness of potential misperceptions of verticality is critical for fields like neuroscience and aviation, especially when body pitch and translational motion interact.