Rapid assimilation of external objects into the body schema

Area of Science:

• Cognitive Neuroscience
• Psychology
• Philosophy of Mind

Background:

• The concept of an extended sense of the body, where external objects are integrated into one's own body schema, has been debated for over a century.
• Recent advancements in psychology and neuroscience have enabled empirical investigation into this phenomenon.

Purpose of the Study:

• To empirically test the conditions under which objects are integrated into an extended body sense.
• To investigate the plasticity and limitations of this extended body representation.

Main Methods:

• Utilized a unique afterimage paradigm to assess the integration of objects into the body sense.
• Designed experiments to manipulate physical contact and proximity between observers and objects.

Main Results:

• Provided empirical evidence supporting the integration of objects into an extended sense of the body.
• Demonstrated that this extended body sense is highly plastic and rapidly assimilates objects in physical contact.
• Showed that the extended body sense is constrained to first-order extensions, limiting self-extension into the environment.

Conclusions:

• Objects can indeed become part of an individual's extended body representation.
• The integration process is dynamic and influenced by physical interaction.
• The capacity for body extension into the environment has defined limits.