Influence of interoception and body movement on the rubber hand illusion
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View abstract on PubMed
Summary
This summary is machine-generated.The rubber hand illusion (RHI) is not linked to interoception, but moving RHI shows that interoceptive sensibility (IS) enhances body ownership. Active movement in moving RHI also boosts agency for those with lower interoceptive accuracy (IAcc).
Area Of Science
- Neuroscience
- Psychology
- Somatosensory research
Background
- The rubber hand illusion (RHI) demonstrates illusory body ownership via visuotactile stimulation.
- Previous studies found inconsistent links between cardiac interoception and RHI strength.
- Voluntary action's role in connecting interoception and body ownership requires further investigation.
Purpose Of The Study
- To investigate the relationship between moving RHI and interoception measures.
- To explore how interoceptive accuracy (IAcc) and interoceptive sensibility (IS) influence moving RHI and agency.
- To clarify the dynamic links between interoception and bodily senses.
Main Methods
- Examined moving RHI induced by active or passive finger tapping while observing a fake hand.
- Measured interoception using interoceptive accuracy (IAcc) via a heartbeat counting task.
- Assessed interoceptive sensibility (IS) using a self-report questionnaire.
Main Results
- No significant association was found between interoception measures and the classical visuotactile RHI.
- Higher interoceptive sensibility (IS) correlated with a stronger sense of body ownership in moving RHI, irrespective of movement type.
- Active movement in moving RHI enhanced the sense of agency, but only in individuals with lower interoceptive accuracy (IAcc).
Conclusions
- The study reveals distinct roles for different dimensions of interoception in shaping bodily senses.
- Interoceptive sensibility (IS) is crucial for body ownership in dynamic RHI paradigms.
- Interoceptive accuracy (IAcc) interacts with voluntary action to modulate the sense of agency.
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