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Sutter C, Fabre M, Massi F, Blouin J, Mouchnino L. When mechanical engineering inspired from physiology improves postural-related somatosensory processes. Sci Rep 2023; 13:19495. [PMID: 37945691 PMCID: PMC10636053 DOI: 10.1038/s41598-023-45381-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 10/18/2023] [Indexed: 11/12/2023] Open
Abstract
Despite numerous studies uncovering the neural signature of tactile processing, tactile afferent inputs relating to the contact surface has not been studied so far. Foot tactile receptors being the first stimulated by the relative movement of the foot skin and the underneath moving support play an important role in the sensorimotor transformation giving rise to a postural reaction. A biomimetic surface, i.e., complying with the skin dermatoglyphs and tactile receptors characteristics should facilitate the cortical processes. Participants (n = 15) stood either on a biomimetic surface or on two control surfaces, when a sudden acceleration of the supporting surface was triggered (experiment 1). A larger intensity and shorter somatosensory response (i.e., SEP) was evoked by the biomimetic surface motion. This result and the associated decrease of theta activity (5-7 Hz) over the posterior parietal cortex suggest that increasing the amount of sensory input processing could make the balance task less challenging when standing on a biomimetic surface. This key point was confirmed by a second experiment (n = 21) where a cognitive task was added, hence decreasing the attentional resources devoted to the balance motor task. Greater efficiency of the postural reaction was observed while standing on the biomimetic than on the control surfaces.
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Affiliation(s)
- Chloé Sutter
- Laboratoire de Neurosciences Cognitives, FR 3C, Aix-Marseille Université, CNRS, 3 Place Victor Hugo, 13331, Marseille, France.
| | - Marie Fabre
- Laboratoire de Neurosciences Cognitives, FR 3C, Aix-Marseille Université, CNRS, 3 Place Victor Hugo, 13331, Marseille, France
| | - Francesco Massi
- Dipartimento di Ingegneria Meccanica ed Aerospaziale, Università degli Studi di Roma «La Sapienza», Rome, Italy
- Laboratoire de Mécanique des Contacts et des Structures, Institut National des Sciences Appliquées de Lyon (INSA LYON), Lyon, France
| | - Jean Blouin
- Laboratoire de Neurosciences Cognitives, FR 3C, Aix-Marseille Université, CNRS, 3 Place Victor Hugo, 13331, Marseille, France
| | - Laurence Mouchnino
- Laboratoire de Neurosciences Cognitives, FR 3C, Aix-Marseille Université, CNRS, 3 Place Victor Hugo, 13331, Marseille, France.
- Institut Universitaire de France, Paris, France.
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Sutter C, Moinon A, Felicetti L, Massi F, Blouin J, Mouchnino L. Cortical facilitation of tactile afferents during the preparation of a body weight transfer when standing on a biomimetic surface. Front Neurol 2023; 14:1175667. [PMID: 37404946 PMCID: PMC10315651 DOI: 10.3389/fneur.2023.1175667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/30/2023] [Indexed: 07/06/2023] Open
Abstract
Self-generated movement shapes tactile perception, but few studies have investigated the brain mechanisms involved in the processing of the mechanical signals related to the static and transient skin deformations generated by forces and pressures exerted between the foot skin and the standing surface. We recently found that standing on a biomimetic surface (i.e., inspired by the characteristics of mechanoreceptors and skin dermatoglyphics), that magnified skin-surface interaction, increased the sensory flow to the somatosensory cortex and improved balance control compared to standing on control (e.g., smooth) surfaces. In this study, we tested whether the well-known sensory suppression that occurs during movements is alleviated when the tactile afferent signal becomes relevant with the use of a biomimetic surface. Eyes-closed participants (n = 25) self-stimulated their foot cutaneous receptors by shifting their body weight toward one of their legs while standing on either a biomimetic or a control (smooth) surface. In a control task, similar forces were exerted on the surfaces (i.e., similar skin-surface interaction) by passive translations of the surfaces. Sensory gating was assessed by measuring the amplitude of the somatosensory-evoked potential over the vertex (SEP, recorded by EEG). Significantly larger and shorter SEPs were found when participants stood on the biomimetic surface. This was observed whether the forces exerted on the surface were self-generated or passively generated. Contrary to our prediction, we found that the sensory attenuation related to the self-generated movement did not significantly differ between the biomimetic and control surfaces. However, we observed an increase in gamma activity (30-50 Hz) over centroparietal regions during the preparation phase of the weight shift only when participants stood on the biomimetic surface. This result might suggest that gamma-band oscillations play an important functional role in processing behaviorally relevant stimuli during the early stages of body weight transfer.
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Affiliation(s)
- Chloé Sutter
- Laboratoire de Neurosciences Cognitives, FR 3C, CNRS, Aix Marseille Université, Marseille, France
| | - Alix Moinon
- Laboratoire de Neurosciences Cognitives, FR 3C, CNRS, Aix Marseille Université, Marseille, France
| | - Livia Felicetti
- Department of Mechanical and Aerospace Engineering, Sapienza University of Rome, Rome, Italy
- LAMCOS, INSA Lyon, CNRS, UMR5259, Université Lyon, Villeurbanne, France
| | - Francesco Massi
- Department of Mechanical and Aerospace Engineering, Sapienza University of Rome, Rome, Italy
| | - Jean Blouin
- Laboratoire de Neurosciences Cognitives, FR 3C, CNRS, Aix Marseille Université, Marseille, France
| | - Laurence Mouchnino
- Laboratoire de Neurosciences Cognitives, FR 3C, CNRS, Aix Marseille Université, Marseille, France
- Institut Universitaire de France, Paris, France
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Qin Y, Mahdavi A, Bertschy M, Anderson PM, Kulikova S, Pinault D. The psychotomimetic ketamine disrupts the transfer of late sensory information in the corticothalamic network. Eur J Neurosci 2023; 57:440-455. [PMID: 36226598 PMCID: PMC10092610 DOI: 10.1111/ejn.15845] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 08/17/2022] [Accepted: 09/01/2022] [Indexed: 02/04/2023]
Abstract
In prodromal and early schizophrenia, disorders of attention and perception are associated with structural and chemical brain abnormalities and with dysfunctional corticothalamic networks exhibiting disturbed brain rhythms. The underlying mechanisms are elusive. The non-competitive NMDA receptor antagonist ketamine simulates the symptoms of prodromal and early schizophrenia, including disturbances in ongoing and task & sensory-related broadband beta-/gamma-frequency (17-29 Hz/30-80 Hz) oscillations in corticothalamic networks. In normal healthy subjects and rodents, complex integration processes, like sensory perception, induce transient, large-scale synchronised beta/gamma oscillations in a time window of a few hundred ms (200-700 ms) after the presentation of the object of attention (e.g., sensory stimulation). Our goal was to use an electrophysiological multisite network approach to investigate, in lightly anesthetised rats, the effects of a single psychotomimetic dose (2.5 mg/kg, subcutaneous) of ketamine on sensory stimulus-induced oscillations. Ketamine transiently increased the power of baseline beta/gamma oscillations and decreased sensory-induced beta/gamma oscillations. In addition, it disrupted information transferability in both the somatosensory thalamus and the related cortex and decreased the sensory-induced thalamocortical connectivity in the broadband gamma range. The present findings support the hypothesis that NMDA receptor antagonism disrupts the transfer of perceptual information in the somatosensory cortico-thalamo-cortical system.
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Affiliation(s)
- Yi Qin
- Université de Strasbourg, Strasbourg, France
- INSERM U1114, Neuropsychologie cognitive et physiopathologie de la schizophrénie, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de médecine, Strasbourg, France
- Centre de Recherche en Biomédecine de Strasbourg (CRBS), Strasbourg, France
- Netherlands Institute for Neuroscience, The Netherlands
| | - Ali Mahdavi
- Université de Strasbourg, Strasbourg, France
- INSERM U1114, Neuropsychologie cognitive et physiopathologie de la schizophrénie, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de médecine, Strasbourg, France
- Centre de Recherche en Biomédecine de Strasbourg (CRBS), Strasbourg, France
- The University of Freiburg, Bernstein Center Freiburg, Freiburg, Germany
| | - Marine Bertschy
- Université de Strasbourg, Strasbourg, France
- INSERM U1114, Neuropsychologie cognitive et physiopathologie de la schizophrénie, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de médecine, Strasbourg, France
- Centre de Recherche en Biomédecine de Strasbourg (CRBS), Strasbourg, France
| | - Paul M Anderson
- Dept. Cognitive Neurobiology, Center for Brain Research, Medical University Vienna, Austria
| | - Sofya Kulikova
- National Research University Higher School of Economics, Perm, Russia
| | - Didier Pinault
- Université de Strasbourg, Strasbourg, France
- INSERM U1114, Neuropsychologie cognitive et physiopathologie de la schizophrénie, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Faculté de médecine, Strasbourg, France
- Centre de Recherche en Biomédecine de Strasbourg (CRBS), Strasbourg, France
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Transcutaneous spinal stimulation alters cortical and subcortical activation patterns during mimicked-standing: A proof-of-concept fMRI study. NEUROIMAGE: REPORTS 2022; 2. [DOI: 10.1016/j.ynirp.2022.100090] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Fabre M, Antoine M, Robitaille MG, Ribot-Ciscar E, Ackerley R, Aimonetti JM, Chavet P, Blouin J, Simoneau M, Mouchnino L. Large Postural Sways Prevent Foot Tactile Information From Fading: Neurophysiological Evidence. Cereb Cortex Commun 2021; 2:tgaa094. [PMID: 34296149 PMCID: PMC8152841 DOI: 10.1093/texcom/tgaa094] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 11/25/2020] [Accepted: 12/15/2020] [Indexed: 11/15/2022] Open
Abstract
Cutaneous foot receptors are important for balance control, and their activation during quiet standing depends on the speed and the amplitude of postural oscillations. We hypothesized that the transmission of cutaneous input to the cortex is reduced during prolonged small postural sways due to receptor adaptation during continued skin compression. Central mechanisms would trigger large sways to reactivate the receptors. We compared the amplitude of positive and negative post-stimulation peaks (P50N90) somatosensory cortical potentials evoked by the electrical stimulation of the foot sole during small and large sways in 16 young adults standing still with their eyes closed. We observed greater P50N90 amplitudes during large sways compared with small sways consistent with increased cutaneous transmission during large sways. Postural oscillations computed 200 ms before large sways had smaller amplitudes than those before small sways, providing sustained compression within a small foot sole area. Cortical source analyses revealed that during this interval, the activity of the somatosensory areas decreased, whereas the activity of cortical areas engaged in motor planning (supplementary motor area, dorsolateral prefrontal cortex) increased. We concluded that large sways during quiet standing represent self-generated functional behavior aiming at releasing skin compression to reactivate mechanoreceptors. Such balance motor commands create sensory reafference that help control postural sway.
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Affiliation(s)
- Marie Fabre
- Laboratoire de Neurosciences Cognitives, Aix Marseille Université, CNRS, FR 3C, Marseille 13331, France
| | - Marine Antoine
- Département de kinésiologie, Faculté de médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | | | - Edith Ribot-Ciscar
- LNSC (Laboratoire de Neurosciences Sensorielles et Cognitives - UMR 7260, FR3C), Aix Marseille Université, CNRS, Marseille 13331, France
| | - Rochelle Ackerley
- LNSC (Laboratoire de Neurosciences Sensorielles et Cognitives - UMR 7260, FR3C), Aix Marseille Université, CNRS, Marseille 13331, France
| | - Jean-Marc Aimonetti
- LNSC (Laboratoire de Neurosciences Sensorielles et Cognitives - UMR 7260, FR3C), Aix Marseille Université, CNRS, Marseille 13331, France
| | - Pascale Chavet
- Institut des Sciences du Mouvement, Aix Marseille Université, CNRS, Marseille 13288, France
| | - Jean Blouin
- Laboratoire de Neurosciences Cognitives, Aix Marseille Université, CNRS, FR 3C, Marseille 13331, France
| | - Martin Simoneau
- Département de kinésiologie, Faculté de médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Laurence Mouchnino
- Laboratoire de Neurosciences Cognitives, Aix Marseille Université, CNRS, FR 3C, Marseille 13331, France
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Changes in the range of angular variation of the ankle, knee, hip and neck joints related to the awareness of an impending perturbation. J Bodyw Mov Ther 2020; 24:24-28. [DOI: 10.1016/j.jbmt.2020.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 07/06/2020] [Accepted: 07/27/2020] [Indexed: 11/20/2022]
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Lhomond O, Teasdale N, Simoneau M, Mouchnino L. Supplementary Motor Area and Superior Parietal Lobule Restore Sensory Facilitation Prior to Stepping When a Decrease of Afferent Inputs Occurs. Front Neurol 2019; 9:1132. [PMID: 30662426 PMCID: PMC6328453 DOI: 10.3389/fneur.2018.01132] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 12/10/2018] [Indexed: 12/22/2022] Open
Abstract
The weighting of the sensory inputs is not uniform during movement preparation and execution. For instance, a transient increase in the transmission to the cortical level of cutaneous input ~700 ms was observed before participants initiated a step forward. The sensory facilitation occurred at a time when feet cutaneous information is critical for setting the forces to be exerted onto the ground to shift the center of mass toward the supporting side prior to foot-off. Despite clear evidence of task-dependent modulation of the early somatosensory signal transmission, the neural mechanisms are mainly unknown. One hypothesis suggests that during movement preparation the premotor cortex and specifically the supplementary motor area (SMA) can be the source of an efferent signal that facilitates the somatosensory processes irrespectively of the amount of sensory inputs arriving at the somatosensory areas. Here, we depressed mechanically the plantar sole cutaneous transmission by increasing pressure under the feet by adding an extra body weight to test whether the task-dependent modulation is present during step preparation. Results showed upregulation of the neural response to tactile stimulation in the extra-weight condition during the stepping preparation whereas depressed neural response was still observed in standing condition. Source localization indicated the SMA and to a lesser extent the superior parietal lobule (SPL) areas as the likely origin of the response modulation. Upregulating cutaneous inputs (when mechanically depressed) at an early stage by efferent signals from the motor system could be an attempt to restore the level of sensory afferents to make it suitable for setting the anticipatory adjustments prior to step initiation.
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Affiliation(s)
- Olivia Lhomond
- Aix Marseille Univ, CNRS, Laboratoire de Neurosciences Cognitives, Marseille, France
| | - Normand Teasdale
- Faculté de médecine, Département de kinésiologie, Université Laval, Québec, QC, Canada
| | - Martin Simoneau
- Faculté de médecine, Département de kinésiologie, Université Laval, Québec, QC, Canada.,Centre Interdisciplinaire de Recherche en Réadaptation et Intégration Sociale, Québec, QC, Canada
| | - Laurence Mouchnino
- Aix Marseille Univ, CNRS, Laboratoire de Neurosciences Cognitives, Marseille, France
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