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Tool use and perceived distance: when unreachable becomes spontaneously reachable
François Osiurak1, Nicolas Morgado, Richard Palluel-Germain
1Laboratoire d'Etude des Mécanismes Cognitifs (EA 3082), Université Lyon 2, Bron Cedex, France. Francois.Osiurak@univ-lyon2.fr
Experimental Brain Research
|February 22, 2012
Summary
People implicitly intend to use tools when tasks exceed their capabilities, influencing distance perception. Holding a long baton, but not a short one, shortened perceived distances.
Area of Science:
- Cognitive Psychology
- Human-Computer Interaction
- Neuroscience
Background:
- Human tool use involves understanding how tools extend capabilities.
- Perception of space is influenced by intended actions and available tools.
Purpose of the Study:
- To investigate whether people implicitly intend to use tools for tasks beyond their reach.
- To determine if passive tool holding affects distance perception without explicit instruction.
Main Methods:
- Participants estimated distances beyond arm's reach under different tool-holding conditions.
- Experiments involved holding a long baton, a short baton, or no baton.
Main Results:
- Holding a long baton led to underestimation of distances compared to no baton.
- Holding a short baton did not significantly alter distance perception.
Conclusions:
- Implicit tool use intention emerges when a tool substantially extends action capabilities.
- Findings link spontaneous tool use, intention, and perceptual adjustments in humans.
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