Changes in spatial self-consciousness elicit grid cell-like representation in the entorhinal cortex.

Autor:	Moon HJ; Neuro-X Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Geneva 1202, Switzerland.; Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Lausanne 1015, Switzerland.; Bionics Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea., Albert L; Neuro-X Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Geneva 1202, Switzerland.; Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Lausanne 1015, Switzerland., De Falco E; Neuro-X Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Geneva 1202, Switzerland.; Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Lausanne 1015, Switzerland., Tasu C; Neuro-X Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Geneva 1202, Switzerland.; Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Lausanne 1015, Switzerland., Gauthier B; Neuro-X Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Geneva 1202, Switzerland.; Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Lausanne 1015, Switzerland.; Clinical Research Unit, Cantonal Hospital, Neuchâtel 2000, Switzerland., Park HD; Neuro-X Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Geneva 1202, Switzerland.; Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Lausanne 1015, Switzerland.; Department of Brain and Cognitive Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea., Blanke O; Neuro-X Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Geneva 1202, Switzerland.; Brain Mind Institute, Faculty of Life Sciences, Swiss Federal Institute of Technology (École Polytechnique Fédérale de Lausanne), Lausanne 1015, Switzerland.; Department of Clinical Neurosciences, University Hospital Geneva, Geneva 1205, Switzerland.
Jazyk:	angličtina
Zdroj:	Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2024 Mar 19; Vol. 121 (12), pp. e2315758121. Date of Electronic Publication: 2024 Mar 15.
DOI:	10.1073/pnas.2315758121
Abstrakt:	Grid cells in the entorhinal cortex (EC) encode an individual's location in space, integrating both environmental and multisensory bodily cues. Notably, body-derived signals are also primary signals for the sense of self. While studies have demonstrated that continuous application of visuo-tactile bodily stimuli can induce perceptual shifts in self-location, it remains unexplored whether these illusory changes suffice to trigger grid cell-like representation (GCLR) within the EC, and how this compares to GCLR during conventional virtual navigation. To address this, we systematically induced illusory drifts in self-location toward controlled directions using visuo-tactile bodily stimulation, while maintaining the subjects' visual viewpoint fixed (absent conventional virtual navigation). Subsequently, we evaluated the corresponding GCLR in the EC through functional MRI analysis. Our results reveal that illusory changes in perceived self-location (independent of changes in environmental navigation cues) can indeed evoke entorhinal GCLR, correlating in strength with the magnitude of perceived self-location, and characterized by similar grid orientation as during conventional virtual navigation in the same virtual room. These data demonstrate that the same grid-like representation is recruited when navigating based on environmental, mainly visual cues, or when experiencing illusory forward drifts in self-location, driven by perceptual multisensory bodily cues. Competing Interests: Competing interests statement:The authors declare no competing interest.
Databáze:	MEDLINE
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