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Theta Activity Supports Landmark-Based Correction of Naturalistic Human Path Integration
Clément Naveilhan1, Raphaël Zory2,3, Klaus Gramann4
1Université Côte d'Azur, LAMHESS, Nice 06205, France clement.naveilhan@univ-cotedazur.fr stephen.ramanoel@univ-cotedazur.fr.
Summary
Humans use landmarks to update their location during navigation. Theta brainwaves in the retrosplenial complex help integrate self-motion cues with visual landmarks for accurate spatial updating.
Area of Science:
- Neuroscience
- Cognitive Science
- Spatial Navigation Research
Background:
- Human spatial navigation relies on path integration and landmark cues.
- Understanding how the brain combines these signals during active movement is crucial.
Purpose of the Study:
- Investigate the neural mechanisms of landmark-based spatial recalibration during active navigation.
- Examine the role of theta oscillations in integrating self-motion and landmark information.
Main Methods:
- Utilized immersive virtual reality and high-density mobile electroencephalography (EEG).
- Participants navigated routes, quantified path integration errors, and used landmarks for recalibration.
Main Results:
- Accumulated navigation errors were corrected by landmarks, but this effect was transient.
- High confidence in self-motion reduced landmark effectiveness, indicating internal prior influence.
- Theta activity in the retrosplenial complex correlated with spatial updating and recalibration.
Conclusions:
- Theta oscillations play a dual role in integrating multimodal spatial information.
- The brain flexibly recalibrates spatial representations using external cues and self-motion data.
