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Peripersonal space: why so last-second?

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This summary is machine-generated.

Peripersonal space (PPS) mechanisms, crucial for reacting to immediate threats, act as a

Keywords:
actionattentiondefensivemultisensoryperceptionthreat

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Behavioral Science

Background:

  • Peripersonal space (PPS) is uniquely processed in humans and monkeys.
  • PPS mechanisms are traditionally linked to threat detection, obstacle avoidance, and object interaction.
  • Anticipatory behaviors often begin before stimuli enter PPS.

Purpose of the Study:

  • To investigate why peripersonal space (PPS) mechanisms are triggered late.
  • To determine the precise role of PPS in defensive and navigational behaviors.
  • To explore the costs associated with PPS mechanisms.

Main Methods:

  • This study synthesizes existing neurophysiological, neuropsychological, and behavioral findings.
  • It analyzes the timing and triggers of PPS-related responses.
  • It examines the adaptive advantages and disadvantages of PPS engagement.

Main Results:

  • PPS mechanisms are proposed as a 'Plan B' for unpredictable situations or failed anticipatory mechanisms.
  • Late triggering of PPS is linked to energetic, cognitive, and behavioral costs.
  • PPS plays a critical role in immediate defensive and navigational actions.

Conclusions:

  • Peripersonal space (PPS) serves as a crucial fallback system for rapid responses.
  • The late activation of PPS is a cost-benefit trade-off, prioritizing efficiency.
  • Understanding PPS mechanisms offers insights into embodied cognition and AI.