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A long-standing approach in research studies is to ask individuals directly how much workload they have experienced while performing a task. The best known exemplar of this approach is the NASA-TLX, developed by Hart...
The pupil has often been characterized as ‘a window into the mind’ because of the direct neural pathways from the brain to the pupil. The pathways between the brain stem and the pupil have...
Let’s assume we are looking around for a cognitive task to include in a new experiment. We want the task to have a number of well-defined characteristics. Some important features are: Results in a...
The Follow-Solve-Listen Test (FSLT) is a three-part test, with each part requiring about 45 seconds of response time from the subject. The task is available for general use and may be of interest to...
The simplest case is a two-sample test of distributions, the Kolmogorov-Smirnov (K-S) Test. The K-S Test is based on the entire set of ICA values obtained from a single subject on two tasks. Because...
Much of psychological research depends upon the general linear model to describe the statistical relationship between a dependent variable and one or more predictor variables. ANOVA and regression analyses are variations of this model....
COGNITIVE TASK PERFORMANCE is the measurable outcome for an individual on a cognitive task. Performance may be qualitative (poor to excellent) or quantitative (0% to 100%) and indicates the individual’s successful execution of the...
COGNITIVE TASK LOAD refers to the amount of cognitive workload that should be produced by a typical individual while performing a specified cognitive task. It is based on the aggregate responses of many individuals...
COGNITIVE TASK DEMANDS are the different cognitive functions and/or processes that are embedded in a cognitive task. Simple tasks may have few cognitive task demands whereas complex tasks may have many. In aggregate, these...
A COGNITIVE TASK is an activity, undertaking, or exercise that requires at least some mental effort by an individual. A cognitive task can be as small as a stimulus-response pairing that spans a few...
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