The preliminary results of a research program investigating the use of added tasks to evaluate mental workload are reviewed. The focus of the first studies was a reappraisal of the traditional secondary task logic that encouraged the use of low-priority instructions for the added task. It was believed that such low-priority tasks would encourage subjects to split their available resources among the two tasks. The primary task would be assigned all the resources it needed, and any remaining reserve capacity would be assigned to the secondary task. If the model were correct, this approach was expected to combine sensitivity to primary task difficulty with unintrusiveness to primary task performance. The first studies of the current project demonstrated that a high-priority added task, although intrusive, could be more sensitive than the traditional low-priority secondary task. These results suggested that a more appropriate model of the attentional effects associated with added task performance might be based on capacity switching, rather than the traditional optimal allocation model.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Performance-based workload assessment: Allocation strategy and added task sensitivity


    Contributors:


    Publication date :

    1990-03-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





    Workload Assessment in Human Performance Models Using the Secondary-Task Technique

    Wang, W. | British Library Conference Proceedings | 2012



    Workload-Based Allocation Strategy for the New Concept of Flight Centric ATC

    Finck, Tobias / Temme, Annette / Tittel, Sebastian et al. | AIAA | 2024


    Autonomous vehicle workload allocation

    European Patent Office | 2017

    Free access