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Environmental Psychology

Cognitive overload and display design

  • 3 things to know
  • Component 03

Overview

Recall questions on ergonomics and human factors, cognitive overload and its consequences, working memory and display design, intrinsic and extraneous cognitive load, single-sensor-single-indicator displays, configural displays and emergent features.

What you need to know

Answer each one before you reveal it.

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Key term

Name three consequences of cognitive overload at work.

Key term

Why does working memory capacity matter for the design of workplace displays?

Key term

Distinguish intrinsic from extraneous cognitive load.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What is ergonomics, also known as human factors?

    Model answer

    It is the study of how equipment, tasks and environments should be designed to fit human physical and cognitive capabilities and limitations.

  2. 2

    What is cognitive overload?

    Model answer

    It is a state in which the information a person must process exceeds their limited attention and working memory capacity, so performance breaks down.

  3. 3

    Name three consequences of cognitive overload at work.

    Model answer

    More errors and missed signals, slower responses, and raised stress and fatigue.

  4. 4

    Why does working memory capacity matter for the design of workplace displays?

    Model answer

    Working memory can hold only a few items at once, so a display that forces the operator to remember several separate numbers and combine them will overload them.

  5. 5

    Distinguish intrinsic from extraneous cognitive load.

    Model answer

    Intrinsic load comes from the inherent difficulty of the task itself, whereas extraneous load is added unnecessarily by poor design or presentation.

  6. 6

    What is a single-sensor-single-indicator display, and what is its drawback?

    Model answer

    It shows one number for each measurement separately, so the operator has to read and mentally integrate them all, which is slow and effortful.

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