Long Lasting Egocentric Disorientation Induced by Normal Sensori-Motor Spatial Interaction
Author Information
Author(s): Dupierrix Eve, Gresty Michael, Ohlmann Théophile, Chokron Sylvie
Primary Institution: Laboratoire de Physiologie de la Perception et de l'Action (LPPA), CNRS, UMR 7152, Collège de France, Paris, France
Hypothesis
Can a brief lateralized sensori-motor task induce long-lasting changes in the perception of spatial direction?
Conclusion
The study found that interactions with the environment can significantly influence the perception of spatial direction without artificial distortions.
Supporting Evidence
- Participants showed a significant deviation in their perception of 'straight ahead' after the pointing task.
- The deviation was approximately 3.2 degrees towards the side they pointed.
- Results suggest that spatial perception is influenced by past sensori-motor experiences.
Takeaway
When people point in one direction for a short time, they might think that direction is straight ahead even after they stop pointing.
Methodology
Twelve right-handed adults pointed to indicate their subjective 'straight ahead' before, immediately after, and one day after a lateralized pointing task.
Potential Biases
Potential bias due to the small sample size and the specific demographic of participants.
Limitations
The study involved a small sample size and only right-handed participants.
Participant Demographics
Twelve right-handed healthy adults, mean age 21.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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