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Functional sufficiency in VR: achieving non-corporeal embodiment.

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Embodiment in virtual reality depends on functional elements, not just interface similarity. Preserving key sensory and feedback loops ensures stable cognitive and emotional outcomes, defining embodiment by perception-action integrity.

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Area of Science:

  • Cognitive Science
  • Human-Computer Interaction
  • Virtual Reality Studies

Background:

  • Existing research on telepresence and subjective experience in virtual environments lacks a formal cognitive model.
  • The concept of embodiment in immersive virtual environments requires a clear theoretical framework linking interface design to user experience.
  • Understanding the conditions under which virtual experiences elicit cognitive and emotional effects is crucial for designing effective virtual environments.

Purpose of the Study:

  • To propose a novel functionalist account of embodiment in immersive virtual environments.
  • To introduce a formal cognitive model, the Thin Model, as an intermediate theory for understanding embodiment.
  • To provide a testable framework for predicting the cognitive and emotional impact of virtual experiences.

Main Methods:

  • Development of a functionalist account of embodiment grounded in a formal model of cognition.
  • Application of the Thin Model to link interface affordances with perception, emotion, and behavior.
  • Analysis of previously published immersive virtual reality studies to identify key functional elements.

Main Results:

  • Behavioral and emotional outcomes remain stable when core functional elements (sensing, recognition, feedback) are preserved, irrespective of locomotion mechanisms.
  • Evidence supports a criterion of functional sufficiency for embodiment, where interface substitution does not alter core action policies.
  • The integrity of the perception-action loop is identified as the defining characteristic of embodiment.

Conclusions:

  • Embodiment in virtual environments is determined by the functional sufficiency of the interface, not anatomical mimicry.
  • The Thin Model offers a valuable theoretical link between interface design and user's cognitive and emotional responses.
  • Future research should focus on theory-driven tests to delineate the boundaries of functional invariance in virtual embodiment.