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Consistent Symbol Location Affects Motor Learning in Preschoolers Without Disabilities: Implications for Designing
Jennifer J Thistle1, Stephanie A Holmes1, Madeline M Horn1
1Department of Communication Sciences and Disorders, University of Wisconsin-Eau Claire.
Purpose:
Designing augmentative and alternative communication (AAC) displays that minimize operational demands is an important aspect of AAC intervention. The current study compared the effect of 2 display designs on the speed of locating target words by preschoolers without disabilities.
Method:
Across 5 sessions, participants in the consistent condition (n = 12) were asked to locate symbols on arrays that did not change, whereas participants in the variable condition (n = 12) utilized arrays where the symbols changed locations each session.
Results:
No difference in response time across conditions was noted during the 1st session; however, by the 5th session, participants in the consistent condition demonstrated significantly faster response times than participants in the variable condition.
Conclusions:
The current study illustrated an advantage of consistent symbol location for preschoolers without disabilities. Clinical applications for incorporating consistent symbol location into AAC display design are discussed; however, replication with children who use AAC is critical.
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