Idiosyncratic representation of peripersonal space depends on the success of one's own motor actions, but also the successful actions of others!

PloS One
Yann CoelloJean-Luc Bruyelle

Abstract

Peripersonal space is a multisensory representation of the environment around the body in relation to the motor system, underlying the interactions with the physical and social world. Although changing body properties and social context have been shown to alter the functional processing of space, little is known about how changing the value of objects influences the representation of peripersonal space. In two experiments, we tested the effect of modifying the spatial distribution of reward-yielding targets on manual reaching actions and peripersonal space representation. Before and after performing a target-selection task consisting of manually selecting a set of targets on a touch-screen table, participants performed a two-alternative forced-choice reachability-judgment task. In the target-selection task, half of the targets were associated with a reward (change of colour from grey to green, providing 1 point), the other half being associated with no reward (change of colour from grey to red, providing no point). In Experiment 1, the target-selection task was performed individually with the aim of maximizing the point count, and the distribution of the reward-yielding targets was either 50%, 25% or 75% in the proximal and dis...Continue Reading

References

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Citations

Sep 8, 2019·Psychological Research·Maria Francesca GigliottiYann Coello
Feb 19, 2020·Perspectives on Psychological Science : a Journal of the Association for Psychological Science·François Quesque, Yves Rossetti
Jun 27, 2021·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Olena V BogdanovaFadila Hadj-Bouziane

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