Related Experiment Video
Updated: Dec 27, 2025

09:49
Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior
Published on: April 16, 2014
26.7K
[Circuit mechanisms of spatial perception and visuomotor integration]
Ryosuke F Takeuchi1, Fumitaka Osakada1,2,3,4
1Laboratory of Cellular Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya University.
Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
|March 3, 2020
Summary
This study explores the neural circuits of vision and visuomotor integration in mammals. Understanding these mechanisms can advance robotics and treatments for visual and neurological disorders.
Area of Science:
- Neuroscience
- Computational Neuroscience
- Robotics
Background:
- Vision is crucial for survival, enabling rapid environmental sensing and adaptive actions in animals.
- The brain processes visual information rapidly via parallel and hierarchical neural circuits, despite high computational demands.
- While significant progress has been made, technical limitations hinder a full understanding of visuomotor integration's neural mechanisms.
Purpose of the Study:
- To describe the anatomical structures of the occipital cortex involved in vision.
- To review physiological and clinical studies of the dorsal visual pathway for spatial perception and prediction in primates.
- To introduce rodent models for elucidating visually-guided behavior neural circuits.
Main Methods:
- Anatomical descriptions of visual processing areas.
- Overview of physiological and clinical studies on primate visual pathways.
- Introduction of rodent models for studying visually-guided behavior.
Main Results:
- The study outlines the anatomical basis of vision in the occipital cortex.
- It reviews the dorsal visual pathway's role in spatial perception and prediction in primates.
- It highlights the use of rodents to investigate neural circuits of visually-guided behavior.
Conclusions:
- Understanding visuomotor integration offers insights for advanced robotics.
- This research could lead to new therapies for visual impairments and neurological disorders.
- Elucidating neural mechanisms of visual-spatial perception and visuomotor function is key for future advancements.
Related Concept Videos
Motor and Sensory Areas of the Cortex
6.6K
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....
6.6K
Vision
59.1K
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.
59.1K
Depth Perception and Spatial Vision
1.7K
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.
1.7K
Visual System
1.5K
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...
1.5K
Major Somatic Sensory Pathways
2.2K
Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the...
2.2K
Somatosensory, Motor, and Association Cortex
2.0K
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
2.0K

