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Related Concept Videos

Learning Disabilities01:25

Learning Disabilities

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Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
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Design Consideration01:22

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Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
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Optimizing growth media enhances microbial proliferation and maximizes product yield. Statistical experimental design methodologies provide structured and reproducible approaches, offering progressively higher levels of robustness and efficiency.The One-Factor-at-a-Time (OFAT) MethodThe One-Factor-at-a-Time (OFAT) method involves adjusting a single variable while keeping all others constant. However, it cannot detect interactions between variables, often leading to suboptimal outcomes when...
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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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Design Example: Designing Water Slide01:18

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When designing a water slide, controlling the speed of water flow is crucial for rider safety while maintaining an exciting experience. As water flows down the slide, gravity causes it to accelerate, with its speed at the bottom depending on the height from which it starts. The higher the slide, the more potential energy the water has at the top, which is converted into kinetic energy as it descends, increasing its speed.
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Design Example: Resistive Touchscreen01:14

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A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
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Optimising web site designs for people with learning disabilities.

Peter Williams1, Christian Hennig1

  • 1University College London.

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Web accessibility for people with learning disabilities can be improved by optimizing website design. Recommendations include horizontal menus and large text with images, balancing user preference with efficient information retrieval.

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Area of Science:

  • Human-Computer Interaction
  • Web Accessibility
  • Cognitive Science

Background:

  • Internet information is often inaccessible to individuals with learning disabilities due to navigation challenges.
  • Optimizing web design is crucial for improving information access for this population.

Purpose of the Study:

  • To determine optimal methods for presenting web information to people with learning disabilities.
  • To identify key website layout attributes impacting usability and performance.

Main Methods:

  • Qualitative research to identify usability attributes.
  • Comparative study of eight web interfaces with varying menu positions, text sizes, and image presence.
  • Participant preference ratings and interviews, with bias mitigation techniques.

Main Results:

  • User preferences favored large text and images.
  • Fastest information retrieval times were associated with different design elements than user preferences.
  • A discrepancy exists between aesthetic preferences and optimal performance for information retrieval.

Conclusions:

  • Design recommendations reconcile user preference and performance.
  • Suggested optimizations include horizontal menus, juxtaposed text and images, and concise text phrases.
  • These changes facilitate preferred large text presentation without increasing task times.