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Girardi, Giovanna; Lindemann, Oliver; Bekkering, Harold – Journal of Experimental Psychology: Human Perception and Performance, 2010
In 4 experiments, we investigated the effects of object affordance in reach-to-grasp actions. Participants indicated whether a depicted small or large object was natural or manmade by means of different object-grasping responses (i.e., with a power or a precision grip). We observed that the size of the depicted object affected the grasping…
Descriptors: Observation, Experiments, Experimental Psychology, Cognitive Processes
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Stull, Andrew T.; Hegarty, Mary; Mayer, Richard E. – Journal of Educational Psychology, 2009
In 2 experiments, participants learned bone anatomy by using a handheld controller to rotate an on-screen 3-dimensional bone model. The on-screen bone either included orientation references, which consisted of visible lines marking its axes (orientation reference condition), or did not include such references (no-orientation reference condition).…
Descriptors: Anatomy, Computer Simulation, Spatial Ability, Low Achievement
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Leming, J. Kyle; Dorman, Katie; Brydges, Ryan; Carnahan, Heather; Dubrowski, Adam – Advances in Health Sciences Education, 2007
Introduction: This study examined the validity of tensiometry as an objective method of assessing the improvements in the quality of knots and technical performance due to practice on suturing and knot-tying skills. Methods: We evaluated the quality of 1,830 knots produced by undergraduate medical students before training (pre-test), after…
Descriptors: Medical Education, Medical Students, Undergraduate Students, Validity