Article Dans Une Revue Psychological Research Année : 2021

Hazardous tools: the emergence of technical reasoning in human tool use

Résumé

Humans are unique in the way they understand the causal relationships between the use of tools and achieving a goal. The idea at the core of the present research is that tool use can be considered as an instance of problem-solving situations supported by technical reasoning. In an eye-tracking study, we investigated the fixation patterns of participants (N = 32) looking at 3D images of thematically-consistent (e.g., nail-steel hammer) and thematically-inconsistent (e.g., scarf-steel hammer) object-tool pairs that could be either "hazardous" (accidentally electrified) or not. Results showed that under thematicallyconsistent conditions, participants focused on the tool's manipulation area (e.g., the handle of a steel hammer). However, when electrified tools were present or when the visual scene was not action-prompting, regardless of the presence of electricity, the tools' functional/identity areas (e.g., the head of a steel hammer) were fixated longer than the tools' manipulation areas. These results support the reasoning-based approach and document, for the first time, the crucial role of mechanical/semantic knowledge in tool visual exploration.

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hal-04002843 , version 1 (23-02-2023)

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Giovanni Federico, François Osiurak, Maria Brandimonte. Hazardous tools: the emergence of technical reasoning in human tool use. Psychological Research, 2021, 85 (8), pp.3108-3118. ⟨10.1007/s00426-020-01466-2⟩. ⟨hal-04002843⟩

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