Pupil Diameter Versus Task Layout.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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Using pupil size as an indirect measure of mental activity, this experiment investigated a spatially compatible and non-compatible forced choice task. It was found subjects could process a higher presentation rate in the compatible layout than in the non-compatible layout without going into an overload condition. Also, when subjects were already in a pupil constricted condition overloaded in a non-compatible arrangement, it was found the constriction could be significantly reduced by switching to a compatible arrangement. Author