Related Experiment Video
Updated: Jun 5, 2026
07:09
Integrating Visual Psychophysical Assays within a Y-Maze to Isolate the Role that Visual Features Play in Navigational Decisions
Published on: May 2, 2019
Visual influence on path integration in darkness indicates a multimodal representation of large-scale space
Lili Tcheang1, Heinrich H Bülthoff, Neil Burgess
1UCL Institute of Cognitive Neuroscience, University College London, London WC1N 3AR, United Kingdom. l.tcheang@ucl.ac.uk
Summary
Navigation relies on a combined sense of motion and vision. This study shows that visual and interoceptive (motion-related) information merge into one multimodal representation for accurate path integration and large-scale navigation.
Area of Science:
- Neuroscience
- Cognitive Science
- Human Navigation
Background:
- Path integration, the ability to return to a starting point, is crucial for navigation.
- This process is thought to rely on integrating motion-related information.
Purpose of the Study:
- To investigate whether visual and motion-related interoceptive inputs (proprioception, vestibular, motor efference copy) combine into a single multimodal representation for navigation.
- To test if path integration in darkness relies solely on interoceptive cues or a combined representation.
Main Methods:
- Utilized immersive virtual reality to manipulate visual input independently from motion-related interoception.
- Participants performed path integration tasks in darkness after adapting to altered visual-motor gains.
- A quantitative model was used to predict and validate findings.
Main Results:
- Evidence suggests that visual and interoceptive representations are combined into a single multimodal representation guiding navigation.
- Findings contradict models proposing separate visual and interoceptive influences on action during path integration.
- The quantitative model accurately predicted navigation behavior based on combined sensory inputs.
Conclusions:
- Large-scale navigation is guided by a combined multimodal representation, integrating visual and interoceptive information.
- This supports theories involving visual imagery or cognitive maps in spatial orientation.
- Decoupling visual input from interoception in VR provides insights into multisensory integration in navigation.
Related Concept Videos
01:15Depth Perception and Spatial Vision
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.
01:21Gestalt Principles of Perception
Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
01:12Visual Agnosia
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round end"...
01:26Visual System
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...
01:12Perceptual Constancy
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
01:20Parallel Processing
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...