Related Experiment Video
Updated: Jul 24, 2025
09:11
Controlled Rotation of Human Observers in a Virtual Reality Environment
Published on: April 21, 2022
2.6K
Cortical Integration of Vestibular and Visual Cues for Navigation, Visual Processing, and Perception.
Sepiedeh Keshavarzi1, Mateo Velez-Fort1, Troy W Margrie1
1The Sainsbury Wellcome Centre for Neural Circuits and Behavior, University College London, London, United Kingdom;
Annual Review of Neuroscience
|July 10, 2023
Summary
The vestibular sense, crucial for spatial navigation, is integrated with vision in the brain. This integration improves self-motion perception and aids rapid decision-making.
Area of Science:
- Neuroscience
- Sensory Processing
- Cerebral Cortex Function
Background:
- The vestibular sense, responsible for balance and spatial orientation, plays a key role in cerebral cortex functions but often remains subconscious.
- Understanding how vestibular signals integrate with other senses, like vision, for perception and decision-making, particularly in spatial navigation, is an ongoing research area.
Purpose of the Study:
- To summarize recent findings on the physiological and behavioral significance of vestibular signals in rodents.
- To explore the integration of vestibular information with visual perception within cortical circuits.
- To identify knowledge gaps in understanding vestibulo-visual integration for spatial navigation and decision-making.
Main Methods:
- Review of recent experimental approaches in rodents investigating vestibular signal processing.
- Focus on cortical circuits involved in visual perception and spatial navigation.
- Analysis of studies examining the integration of vestibular and visual sensory information.
Main Results:
- Widespread integration of vestibular signals with vision enhances cortical representation of self-motion and orientation.
- Vestibular input improves perceptual accuracy during tasks involving self-motion and spatial orientation.
- Evidence suggests vestibular signals are crucial for accurate spatial navigation.
Conclusions:
- Vestibulo-visual integration is a continuous process updating self-motion status.
- Cortical access to this integrated information supports sensory perception and predictions.
- This integration is vital for rapid, navigation-related decision-making.
Related Concept Videos
01:29The Vestibular System
39.7K
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.
39.7K
01:14Motor and Sensory Areas of the Cortex
4.0K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
4.0K
01:26Visual System
620
Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Once through the pupil, the light passes through the lens, a...
620
01:24Vision
53.6K
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
53.6K
01:15Equilibrium and Balance
4.8K
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...
4.8K
01:15Depth Perception and Spatial Vision
735
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
735