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What Is Whole-Body Vision?

The concept that visual perception is not solely for object identification but is a crucial input used by the central nervous system to organize and maintain posture, orientation, and locomotion in space (balance and movement).

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What Is Whole-Body Vision?

The concept that visual perception is not solely for object identification but is a crucial input used by the central nervous system to organize and maintain posture, orientation, and locomotion in space (balance and movement).

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Three Systems

Balance and spatial orientation rely on the dynamic interaction of the visual system, the vestibular system (inner ear), and the proprioceptive system (muscle/joint position sense).

Optic Flow

Vision provides crucial information about "optic flow" (the pattern of motion across the retina as we move), which the brain uses to control gait and anticipate obstacles.

Rehabilitation

Visual-vestibular rehabilitation therapy often focuses on improving the coordination of whole-body vision inputs to reduce dizziness and improve stability.

What is 'proprioception'?

The sense of the relative position of one's own body parts and the strength of effort being used in movement.

What is 'vection'?

Visually induced motion perception (e.g., feeling like your train is moving when the adjacent train moves), a powerful demonstration of vision overriding vestibular input.

Can vision problems cause dizziness?

Yes. Visual stress, misalignment, or high degrees of uncorrected refractive error can lead to visually induced dizziness and imbalance.