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Related Concept Videos

Vision01:24

Vision

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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.
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Accessory Structures of the Eye01:17

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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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Upward Impending Motion01:21

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A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. Its operation is based on converting the force applied at its handle into a torsional moment, causing the upward impending motion of the screw. This movement is accomplished by overcoming the static friction between the threads of the screw and the jack.
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Central-Force Motion01:17

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The central force system operates by exerting a force on an object directed towards a fixed point, typically the origin, with the force magnitude determined by the object's distance from this fixed point. In the context of an object with mass 'm,' polar coordinates are employed to express the equation of motion. Notably, the azimuthal component of force is nonexistent in this system. A comprehensive rewrite and integration of this equation reveal that the product of the squared...
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Muscle Coordination and Action01:24

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Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction, abduction, and rotation. The human body orchestrates the actions of various muscles working in concert, each with a specific role. Four functional types describe how muscles work together: agonist, antagonist, synergist, and fixator.
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Depth Perception and Spatial Vision01:15

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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.
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Related Experiment Video

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VisualEyes: A Modular Software System for Oculomotor Experimentation
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VisualEyes: A Modular Software System for Oculomotor Experimentation

Published on: March 25, 2011

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Vision and vigilance on the go.

Geoffrey M Ghose1

  • 1Departments of Neuroscience, Radiology, and Psychology, Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN 55455, USA.

Trends in Cognitive Sciences
|February 17, 2015
PubMed
Summary
This summary is machine-generated.

This study explores how the mouse visual cortex aids in coordinating sensory, motor, and motivation systems for purposeful movement. Findings suggest its suitability for investigating complex neural coordination.

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Area of Science:

  • Neuroscience
  • Systems Neuroscience
  • Motor Control

Background:

  • Purposeful movement relies on integrating sensory, motor, and motivational information.
  • The neural mechanisms underlying this integration are not fully understood.

Purpose of the Study:

  • To investigate the role of the mouse visual cortex in coordinating sensory, motor, and motivation systems.
  • To explore the potential of the visual cortex as a model system for studying neural coordination.

Main Methods:

  • Utilizing recent experimental findings from mouse visual cortex research.
  • Analyzing the integration of sensory, motor, and motivational signals within this brain region.

Main Results:

  • The mouse visual cortex shows promise as a suitable platform for studying neural coordination.
  • Experiments suggest its capacity to integrate diverse neural systems.

Conclusions:

  • The mouse visual cortex is a valuable area for future research into the neural basis of purposeful action.
  • Further investigation is warranted to elucidate the specific mechanisms of coordination within this system.