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How many peripersonal spaces?

F de Vignemont1, G D Iannetti2

  • 1Institut Jean Nicod, ENS - EHESS - CNRS, France.

Neuropsychologia
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Summary
This summary is machine-generated.

This study proposes a dual model for peripersonal space, distinguishing between bodily protection and goal-directed action. This framework clarifies the cortical representation of space near the body.

Keywords:
AnxietyDefenceGoalGoal oriented actionsMultisensory attentionPeripersonal spaceReaching spaceTool

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Area of Science:

  • Cognitive Neuroscience
  • Neuroscience
  • Psychology

Background:

  • Peripersonal space, the area surrounding the body, has been studied in humans and primates.
  • Existing literature shows confusion regarding a unified representation of peripersonal space.
  • Terminology differences between social psychology and cognitive neuroscience contribute to this ambiguity.

Purpose of the Study:

  • To investigate whether a single representation of peripersonal space is a valid assumption.
  • To propose a novel dual model for understanding peripersonal space.
  • To differentiate the functions and underlying mechanisms of peripersonal space.

Main Methods:

  • Review and synthesis of existing literature from cognitive neuroscience and social psychology.
  • Theoretical modeling based on functional distinctions.
  • Analysis of empirical evidence related to anxiety and tool use effects on peripersonal space.

Main Results:

  • The study challenges the notion of a single, unified representation of peripersonal space.
  • A dual model is proposed, separating peripersonal space into distinct functional domains.
  • Distinct sensory and motor processes are hypothesized for each proposed domain of peripersonal space.

Conclusions:

  • A dual model of peripersonal space, based on bodily protection and goal-directed action, offers a clearer framework.
  • This distinction is supported by empirical findings on anxiety and tool use.
  • The proposed model helps resolve inconsistencies in the current literature on peripersonal space.