Simulated aged performance on the embedded figures test

Abstract

According to Labouvie-Vief (1985) the predominant explanatory mechanism for performance decline among the elderly incorporates a regression-oriented view of cognitive development: The present study tested the hypothesis that age-related performance decline may be explained by the quantitative changes in lower-level visual functions, such as those due to preretinal aging, which preclude the expression of intact cognitive (qualitative) processes. Thirty undergraduate female volunteers (18 to 25 years) viewed the Embedded Figures Test (EFT) under three conditions: no-filter viewing, .6 neutral-density filter viewing, and simulated-aged (yellow-filter plus .5 neutral-density filter) viewing. A one-way ANOVA revealed significant viewing condition effects for the number of items solved, the number of errors, and time-to-solution. Significant linear trends were found for levels of luminous transmittance. Results supported the hypothesis that preretinal aging appears to degrade EFT performance.

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