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Related Experiment Videos

Different difficulty manipulations interact differently with task emphasis: evidence for multiple resources.

D Gopher, M Brickner, D Navon

    Journal of Experimental Psychology. Human Perception and Performance
    |February 1, 1982
    PubMed
    Summary
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    This study investigated resource competition between typing and tracking tasks. Results show these tasks primarily compete for motor resources, suggesting typing uses at least two distinct resource types.

    Area of Science:

    • Cognitive Psychology
    • Human-Computer Interaction
    • Neuroscience

    Background:

    • Understanding cognitive resource allocation is crucial for designing efficient human-computer systems.
    • Task interference and performance decrements often arise when multiple tasks demand shared cognitive resources.

    Purpose of the Study:

    • To investigate the resource-sharing mechanisms between a pursuit tracking task and a letter-typing task.
    • To determine whether cognitive and motor difficulty manipulations in typing differentially affect resource competition with tracking.

    Main Methods:

    • A two-dimensional pursuit tracking task was combined with a letter-typing task.
    • Typing task difficulty was manipulated by varying cognitive load (stimulus set size) and motor load (finger chord repetitiveness).

    Related Experiment Videos

  • Task priority was manipulated to assess resource competition.

    • Main Results:

    • Task priority significantly impacted performance on both typing and tracking, indicating resource competition.
    • Both cognitive and motor difficulty affected typing performance.
    • Only motor difficulty in typing interacted with task priorities, suggesting a shared motor resource.

    Conclusions:

    • Typing and tracking tasks compete for shared resources, primarily those related to motor control.
    • The letter-typing task appears to rely on at least two distinct types of cognitive resources.