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Thaler, Lore; Todd, James T. – Journal of Experimental Psychology: Human Perception and Performance, 2010
Visual information can specify spatial layout with respect to the observer (egocentric) or with respect to an external frame of reference (allocentric). People can use both of these types of visual spatial information to guide their hands. The question arises if movements based on egocentric and movements based on allocentric visual information…
Descriptors: Feedback (Response), Testing, Visual Perception, Brain
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Cox, Ralf F. A.; Smitsman, Ad W. – Developmental Science, 2006
Tool use consists of at least two coupled phases of activities, involving multi-step problem solving. It therefore provides an interesting window on the development of planning in goal-directed behavior. This study investigated 2-year-olds' and 3-year-olds' hand use in picking up and subsequently using a tool for displacing a target-object towards…
Descriptors: Age Differences, Competence, Problem Solving, Toddlers