Tool Use Moves the Peri-personal Space from the Hand to the Tip of the Tool

Overview

Journal Front Psychol

Date 2023 May 30

PMID 37251033

Authors

Ayako Saneyoshi

Ryota Takayama

Chikashi Michimata

Affiliations

Soon will be listed here.

Abstract

In this study, we used a visual target detection task to investigate three hypotheses about how the peri-personal space is extended after tool-use training: , and hypotheses. We compared the target detection performance before and after tool-use training. In both conditions, the participants held a hockey stick-like tool in their hands during the detection task. Furthermore, we added the no-tool-holding condition to the experimental design. In the no-tool-holding condition, a peri-hand space advantage in the visual target detection task was observed. When the participants held the tool with their hands, this peri-hand space advantage was lost. Furthermore, there was no peri-tool space advantage before tool training. After tool training, the peri-tool space advantage was observed. However, after tool training, the advantage of the peri-hand space was not observed. This result suggested that the peri-hand advantage was reduced by simply holding the tool because the participants lost the functionality of their hands. Furthermore, tool-use training improved detection performance only in the peri-tool space. Thus, these results supported the hypothesis that the peri-personal space advantage would move from the body to the functional part of the tool.

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