System and Method For Mental Workload Measurement Based on Rapid Eye Movement
First Claim
1. A method of measuring a mental workload for a human based on rapid eye movements, comprising:
- identifying saccades in received eye movement data;
computing inter-saccadic intervals for the received eye movement data; and
determining the mental workload based on the computed inter-saccadic intervals.
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Abstract
A system and method for mental workload measurement and analysis are disclosed, which measure time intervals between saccades in eye movements. These intervals, called Inter Saccadic Intervals (ISI), characterize different levels of mental workload during operator performance, such as for MRO (Operator of Robot Manipulator). The device can include sensors for measuring oculometric potentials from the human face, an amplifier for amplifying measured potentials, an analog-to-digital (A/D) converter for generating digital output signals relating to the measured potentials, and a digital computer for continually measuring the electrooculogramic potential, extracting the saccades, calculating ISIS, and then determining quantitative criteria of mental workload based on the ISIS. Human performance can be measured and analyzed for: a proficiency level evaluation in simulators and real conditions; estimation of automated control system'"'"'s interface and software usability; and human controlled procedures complexity evaluation.
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Citations
24 Claims
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1. A method of measuring a mental workload for a human based on rapid eye movements, comprising:
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identifying saccades in received eye movement data; computing inter-saccadic intervals for the received eye movement data; and determining the mental workload based on the computed inter-saccadic intervals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for measuring a mental workload for a human based on rapid eye movements, comprising:
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means for identifying saccades in eye movement data; means for computing inter-saccadic intervals in the received eye movement data; and
an analysis module for determining the mental workload based on the computed intersaccadic intervals. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A computer-readable medium including statements and instructions which, when executed by a computer, cause the computer to perform the steps of:
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identifying saccades in received eye movement data; computing inter-saccadic intervals for the received eye movement data; and determining the mental workload based on the computed inter-saccadic intervals.
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24. A signal embodied on a carrier wave, the signal comprising:
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a first data segment for identifying saccades in received eye movement data; a second data segment for computing inter-saccadic intervals for the received eye movement data; and a third data segment for determining the mental workload based on the computed inter-saccadic intervals.
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Specification