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Maximizing Eye Movements & Visual Design: Enhancing Resolution & Efficiency, Slides of Brain and Cognitive Science

The competing goals of visual system design, focusing on maximizing spatial resolution and field of view while minimizing neural resources. The text delves into the importance of studying eye movements, their types, properties, and control mechanisms. Eye movements are crucial as they determine what we see, are tightly linked to perception and cognition, and are one of the best-understood systems in terms of anatomy, physiology, and computations.

Typology: Slides

2011/2012

Uploaded on 12/21/2012

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Competing Goals for Visual System Design
Maximize spatial resolution
Maximize field of view
Minimize neural resources
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Competing Goals for Visual System Design

Maximize spatial resolution

Maximize field of view

Minimize neural resources

Solution

High resolution foveal vision

Low resolution peripheral vision

Eye movement system

Why study eye movements

  • Where we look determines what we see
  • Tightly linked to perception and cognition
  • Relatively simple and well characterized
  • Amenable to precise, quantitative study
  • One of the best understood systems in

terms of anatomy, physiology and

computations

  • Sensory-motor integration

Types of Eye Movements

•Saccadic Movements: –Scanning movements where the gaze is abruptly shifted from one point to the next: conjugate, ballistic, no visual feedback

•Vergence Movements: –Cooperative movements that keep both eyes fixed on the target; converge or diverge

•Pursuit movements: –Smooth tracking movements that keep an object’s image fixed in place on the retina

•Vestibulo-Ocular Reflex (VOR) –Stabilize image during head and body movements

•Micro movements –Tremor, drift, microsaccades

Saccade control