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Related Concept Videos

The Vestibular System01:29

The Vestibular System

40.2K
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.
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Equilibrium and Balance01:15

Equilibrium and Balance

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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...
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Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

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The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
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Association Areas of the Cortex01:21

Association Areas of the Cortex

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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
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Related Experiment Video

Updated: Sep 16, 2025

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

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Reduced Vestibular Function is Associated With Cortical Surface Shape Changes in the Frontal Cortex.

Dominic Padova1, J Tilak Ratnanather2, Andreia V Faria3

  • 1Center for Imaging Science, Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA.

Human Brain Mapping
|July 9, 2025
PubMed
Summary
This summary is machine-generated.

Aging reduces vestibular function, impacting brain areas like the frontal and sensorimotor cortices. This study links specific vestibular deficits to brain shape changes, offering insights into cognitive and motor decline in older adults.

Keywords:
LDDMMVEMPVORagingcortexshape analysisvestibular

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How to Measure Cortical Folding from MR Images: a Step-by-Step Tutorial to Compute Local Gyrification Index
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Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
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Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

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Related Experiment Videos

Last Updated: Sep 16, 2025

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How to Measure Cortical Folding from MR Images: a Step-by-Step Tutorial to Compute Local Gyrification Index
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Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
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Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform

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Area of Science:

  • Neuroscience
  • Gerontology
  • Auditory and Vestibular System Research

Background:

  • Aging is associated with declining peripheral vestibular function, potentially affecting cognitive and behavioral abilities.
  • The neural pathways linking vestibular system changes to brain structure alterations in aging are not well understood.

Purpose of the Study:

  • To investigate the relationship between age-related vestibular function decline and surface shape variations in frontal and sensorimotor cortical regions.
  • To identify specific neural pathways connecting vestibular function to brain morphology in older adults.

Main Methods:

  • Cross-sectional study of 117 older adults (60+) from the Baltimore Longitudinal Study of Aging.
  • Utilized end-organ-specific vestibular tests (cVEMP, oVEMP, vHIT) and T1-weighted MRI scans.
  • Applied Large Deformation Diffeomorphic Metric Mapping (LDDMM) to analyze shape descriptors of 10 frontal and sensorimotor cortical regions of interest (ROIs).

Main Results:

  • Reduced utricular function correlated with surface compression in the left middle frontal gyrus (MFG) and expansion in the superior frontal gyrus pole (SFG_pole) and superior frontal gyrus (SFG).
  • Diminished horizontal semicircular canal function was linked to surface compression in the right superior frontal gyrus prefrontal cortex (SFG_PFC) and SFG_pole, and left SFG.
  • Saccular and utricular function decline was associated with surface compression in the posterior medial left MFG.

Conclusions:

  • Vestibular end-organ function is intricately linked to focal morphological changes in aging frontal and sensorimotor cortices.
  • These findings highlight potential neural pathways relevant to executive function, motor planning, and self-motion perception.
  • Understanding these connections may inform interventions to improve quality of life for aging populations and those with cognitive impairment.