Type of Document	Master's Thesis
Author	Adkins, Denise Rene
URN	etd-05142004-114820
Title	Individual Differences in Spatial Memory Performance at 12 Months of Age: Contributions from Walking Experience and Brain Electrical Activity
Degree	Master of Science
Department	Psychology
Advisory Committee	Advisor Name Title Martha Ann Bell, PhD Committee Chair David Harrison, PhD Committee Member Robin Cooper, PhD Committee Member
Keywords	EEG individual differences spatial memory walking experience
Date of Defense	2004-04-28
Availability	restricted
Abstract Individual Differences in Spatial Memory Performance at 12 Months of Age: Contributions from Walking Experience and Brain Electrical Activity Denise Rene Adkins ABSTRACT This study examined individual differences in spatial memory performance in 12-month-old infants using brain electrical activity and walking experience. Greenough’s experience-expectant and experience-dependent model of development was used to examine EEG power values among infants with different levels of walking experience (non-walkers, novice, experienced). In accordance with this model, a trend was shown for novice walkers to have higher EEG power values than both non-walkers and experienced walkers only in the central region. Walkers were also found to score higher on an object retrieval (OR) spatial memory task than non-walkers, with amount of walking experience being inconsequential. In addition, infants who scored higher on the OR spatial memory task showed a trend for higher EEG power values in medial frontal, central and parietal areas than infants scoring lower on the OR task. This was not the case for the manual search spatial memory task (AB). There was no interaction among spatial memory performance, walking experience and brain electrical activity. The utility of OR as a spatial memory task that requires the integration of relevant perceptual-motor integration is discussed.
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