Fatigue and reading of text on videotex

• Examined the effects of fatigue during the reading of texts presented by means of a videotex system or by means of print on paper in 3 experiments with 72 undergraduates. The 2-hr reading task was interrupted 6 times for tests of speed and accuracy in scanning a matrix of letters for given target letters, speed and accuracy in an auditory-motor reaction time (RT) task, and a free recall test of the information presented prior to each text session. The 3 experiments differed with respect to task demands. Exp I was less demanding than Exp II, which was less demanding than Exp III. It was predicted that Ss who read the texts presented on videotex would show more dramatic effects than Ss who read texts under more regular print-on-paper conditions. It was also predicted that these effects would be more pronounced for more demanding tasks. Results demonstrate only marginal effects of fatigue. It is suggested that some effects could be interpreted as more fatigue in the videotex group than in the print group. The increase in task demands resulted in longer scanning and RTs, but accuracy data were unaffected.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Produktionsteknik, arbetsvetenskap och ergonomi (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Production Engineering, Human Work Science and Ergonomics (hsv//eng)

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