Accession Number : AD0479045


Title :   TECHNIQUES FOR EVALUATING OPERATOR LOADING IN MAN-MACHINE SYSTEMS. DEVELOPMENT OF A METHOD FOR REAL TIME ASSESSMENT OF OPERATOR OVERLOADING.


Descriptive Note : Technical rept.,


Corporate Author : APPLIED PSYCHOLOGICAL SERVICES INC WAYNE PA


Personal Author(s) : Siegel, Arthur I ; Lanterman, Richard S ; Platzer, Harold L ; Wolf, J Jay


Report Date : Jan 1966


Pagination or Media Count : 75


Abstract : The logic involved in deriving certain constants, thought important for describing the human transfer function, is presented. Then an experiment investigating the effects of varying operaror alertness level (sleep deprivation) on two of the constants is described and the results presented. In the experiment, subjects performed compensatory tracking and a series of cognitive and perceptual motor tasks at intervals over a 27 hour period of sleep deprivation. The results were not in accordance with the preexperimental hypothesis, which stated that the two constants derived should decrease as the alertness level decreased (increasing period of sleep deprivation). On the other hand, some relationship was found between one of the transfer function constants and the scores of the subjects on the accessory intellectual and cognitive tasks. Several possible explanations for the findings are presented. (Author)


Descriptors :   *PERFORMANCE(HUMAN) , *MAN MACHINE SYSTEMS , HUMAN FACTORS ENGINEERING , OPERATORS(PERSONNEL) , LOADING(ORDNANCE PROJECTORS) , FUNCTIONS(MATHEMATICS) , ATTENTION , STRESS(PHYSIOLOGY) , TRACKING , PERFORMANCE(HUMAN)


Subject Categories : Psychology
      Human Factors Engineering & Man Machine System


Distribution Statement : APPROVED FOR PUBLIC RELEASE