Abstract
Three experiments were performed using an aperture-viewing technique to assess the accuracy of shape perception when subjects were required to emit eye movements in order to pick up shape information, compared with the accuracy of shape perception when subjects were not required to emit eye movements in order to pick up the same shape information. In two of the three experiments, we also tried to elicit two different kinds of eye movements which have been suggested as being differentially useful for the processing of shape information. All three experiments explored whether the usefulness of eye movements varied as a function of age. The results of all three experiments indicate that the accuracy of shape perception improves with age under aperture-viewing conditions. The conditions in which eye movements were required to pick up the shape information led to an improvement in the processing of the shape information. This improvement seems to be about the same for both of the eye movement conditions and for all of the age groups tested (4.6 years through 21.7 years).
Published Version
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