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ERIC Number: EJ894201
Record Type: Journal
Publication Date: 2010-Aug
Pages: 15
Abstractor: As Provided
Reference Count: 65
ISSN: ISSN-0096-1523
The Role of Expertise in Tool Use: Skill Differences in Functional Action Adaptations to Task Constraints
Bril, Blandine; Rein, Robert; Nonaka, Tetsushi; Wenban-Smith, Francis; Dietrich, Gilles
Journal of Experimental Psychology: Human Perception and Performance, v36 n4 p825-839 Aug 2010
Tool use can be considered a particularly useful model to understand the nature of functional actions. In 3 experiments, tool-use actions typified by stone knapping were investigated. Participants had to detach stone flakes from a flint core through a conchoidal fracture. Successful flake detachment requires controlling various functional parameters simultaneously. Accordingly, our goals were twofold: (a) to examine the regulation of kinetic energy by varying the properties of the hammers and the goal, and (b) to characterize the difference in action regulation across skill levels. All groups were able to modify their actions according to changes in task goals, but only experts displayed fine-tuning to functional parameters (i.e., regulate actions according to changes in hammer weight in a manner that left kinetic energy unchanged). Expertise is considered to depend on the identification of the interactions between functional parameters. (Contains 7 figures and 4 tables.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A