Author:
Norman J. Farley,Eaton Jerica R.,Gunter McKenzie L.,Baig Maheen
Abstract
AbstractEighteen younger and older adults (mean ages were 20.4 and 72.8 years, respectively) participated in a tactile speed matching task. On any given trial, the participants felt the surfaces of rotating standard and test wheels with their index fingertip and were required to adjust the test wheel until its speed appeared to match that of the standard wheel. Three different standard speeds were utilized (30, 50, and 70 cm/s). The results indicated that while the accuracy of the participants’ judgments was similar for younger and older adults, the precision (i.e., reliability across repeated trials) of the older participants’ judgments deteriorated significantly relative to that exhibited by the younger adults. While adverse effects of age were obtained with regards to both the precision of tactile speed judgments and the participants’ tactile acuity, there was nevertheless no significant correlation between the older adults’ tactile acuities and the precision of their tactile speed judgments.
Publisher
Springer Science and Business Media LLC
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