November 1984
Volume 25, Issue 11
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Articles  |   November 1984
Rocket-ship psychophysics. Assessing visual functioning in young children.
Investigative Ophthalmology & Visual Science November 1984, Vol.25, 1307-1315. doi:
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      I Abramov, L Hainline, J Turkel, E Lemerise, H Smith, J Gordon, S Petry; Rocket-ship psychophysics. Assessing visual functioning in young children.. Invest. Ophthalmol. Vis. Sci. 1984;25(11):1307-1315.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

A set of psychophysical procedures is described for rapidly measuring visual functions such as spatial contrast sensitivity, flicker fusion, and rod and cone two-color increment thresholds in young children. The psychophysical procedures, disguised as electronic space games, use a forced-choice paradigm combined with the method of descending limits. Because children enjoy the tasks and are highly motivated, the tests yield good sensory thresholds in a short period of time. However, when thresholds from 6-8-year-old children are compared with those of adults, the children have slightly higher thresholds for all of the functions tested. The differences are ascribed to the tendency of children to adopt a guessing strategy when stimuli are close to threshold.

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