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Gonzalez-Rodriguez EA, Cepeda-Zapata LK, Rivas-Silva AA, Martinez-Gonzalez VG, Alonso-Valerdi LM, Ibarra-Zarate DI. NeuroSense: A non-invasive and configurable somatosensory stimulator with OPENVIBE communication. HARDWAREX 2024; 18:e00529. [PMID: 38690151 PMCID: PMC11059327 DOI: 10.1016/j.ohx.2024.e00529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 04/05/2024] [Accepted: 04/13/2024] [Indexed: 05/02/2024]
Abstract
Understanding the somatosensory system and its abnormalities requires the development of devices that can accurately stimulate the human skin. New methods for assessing the somatosensory system can enhance the diagnosis, treatments, and prognosis for individuals with somatosensory impairments. Therefore, the design of NeuroSense, a tactile stimulator that evokes three types of daily life sensations (touch, air and vibration) is described in this work. The prototype aims to evoke quantitative assessments to evaluate the functionality of the somatosensory system and its abnormal conditions that affect the quality of life. In addition, the device has proven to have varying intensities and onset latencies that produces somatosensory evoked potentials and energy desynchronization on somatosensory cortex.
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Affiliation(s)
- Erick A. Gonzalez-Rodriguez
- Autonomous University of Nuevo Leon, Pedro de Alba S/N, Niños Héroes, Ciudad Universitaria, 66455 San Nicolás de los Garza, N.L., Mexico
| | - Luis Kevin Cepeda-Zapata
- Instituto Tecnológico de Estudios Superiores de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Tecnológico, 64849 Monterrey, N.L., Mexico
| | - Angel Antonio Rivas-Silva
- Autonomous University of Nuevo Leon, Pedro de Alba S/N, Niños Héroes, Ciudad Universitaria, 66455 San Nicolás de los Garza, N.L., Mexico
| | - Vania G. Martinez-Gonzalez
- Instituto Tecnológico de Estudios Superiores de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Tecnológico, 64849 Monterrey, N.L., Mexico
| | - Luz Maria Alonso-Valerdi
- Instituto Tecnológico de Estudios Superiores de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Tecnológico, 64849 Monterrey, N.L., Mexico
| | - David Isaac Ibarra-Zarate
- Instituto Tecnológico de Estudios Superiores de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Tecnológico, 64849 Monterrey, N.L., Mexico
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Kersebaum D, Sendel M, Lassen J, Fabig SC, Forstenpointner J, Reimer M, Canaan-Kühl S, Gaedeke J, Rehm S, Gierthmühlen J, Baron R, Hüllemann P. Cold-evoked potentials in Fabry disease and polyneuropathy. FRONTIERS IN PAIN RESEARCH 2024; 5:1352711. [PMID: 38812855 PMCID: PMC11133603 DOI: 10.3389/fpain.2024.1352711] [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: 12/08/2023] [Accepted: 04/02/2024] [Indexed: 05/31/2024] Open
Abstract
Background Fabry disease (FD) causes cold-evoked pain and impaired cold perception through small fiber damage, which also occurs in polyneuropathies (PNP) of other origins. The integrity of thinly myelinated fibers and the spinothalamic tract is assessable by cold-evoked potentials (CEPs). In this study, we aimed to assess the clinical value of CEP by investigating its associations with pain, autonomic measures, sensory loss, and neuropathic signs. Methods CEPs were examined at the hand and foot dorsum of patients with FD (n = 16) and PNP (n = 21) and healthy controls (n = 23). Sensory phenotyping was performed using quantitative sensory testing (QST). The painDETECT questionnaire (PDQ), FabryScan, and measures for the autonomic nervous system were applied. Group comparisons and correlation analyses were performed. Results CEPs of 87.5% of the FD and 85.7% of the PNP patients were eligible for statistical analysis. In all patients combined, CEP data correlated significantly with cold detection loss, PDQ items, pain, and autonomic measures. Abnormal CEP latency in FD patients was associated with an abnormal heart frequency variability item (r = -0.684; adjusted p = 0.04). In PNP patients, CEP latency correlated significantly with PDQ items, and CEP amplitude correlated with autonomic measures (r = 0.688, adjusted p = 0.008; r = 0.619, adjusted p = 0.024). Furthermore, mechanical pain thresholds differed significantly between FD (gain range) and PNP patients (loss range) (p = 0.01). Conclusions Abnormal CEPs were associated with current pain, neuropathic signs and symptoms, and an abnormal function of the autonomic nervous system. The latter has not been mirrored by QST parameters. Therefore, CEPs appear to deliver a wider spectrum of information on the sensory nervous system than QST alone.
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Affiliation(s)
- Dilara Kersebaum
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
- Schön Clinic Rendsburg, Department of Psychiatry, Psychotherapy and Psychosomatics, Rendsburg, Germany
| | - Manon Sendel
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Josephine Lassen
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Sophie-Charlotte Fabig
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Julia Forstenpointner
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Maren Reimer
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Sima Canaan-Kühl
- Division of Nephrology, Department of Medicine, Charité, Berlin, Germany
| | - Jens Gaedeke
- Division of Nephrology, Department of Medicine, Charité, Berlin, Germany
| | - Stefanie Rehm
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Janne Gierthmühlen
- Interdisciplinary Pain and Palliative Care Division, Department of Anesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Germany
| | - Ralf Baron
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Philipp Hüllemann
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
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Bravo M, Joon HL, Fallon J, Iansek R, Shoushtarian M. Towards non-invasive peripheral stimulation as a treatment for Parkinson's disease gait. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2023; 2023:1-4. [PMID: 38083474 DOI: 10.1109/embc40787.2023.10340670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Non-invasive coordinated reset stimulation (CRS) to the hands has been shown to improve motor ability in Parkinson's patients, but not specific for gait disturbances. The overall aim of the project is the application of vibrotactile CRS to the feet to improve gait impairments in Parkinson's disease. As a first step towards this objective, we showed that vibrotactile stimulation to the feet can elicit a cortical response and have identified differences in younger and older individuals. Our findings suggest the potential for non-invasive peripheral stimulation as a therapeutic technique.Clinical Relevance- This is an important step towards developing a non-invasive stimulation technique for the management of gait disturbances in Parkinson's disease.
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Després O, Mamino E, Pebayle T, Lithfous S, Dufour A. An electronical stimulator for quantitative sensory testing and evoked potential analysis of tactile Aβ nerve fibers. Clin Neurophysiol 2023; 150:184-193. [PMID: 37075683 DOI: 10.1016/j.clinph.2023.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/17/2023] [Accepted: 03/23/2023] [Indexed: 04/05/2023]
Abstract
OBJECTIVE We aimed to determine the ability of an innovative device, the Cutaneous Mechanical Stimulator (CMS), to evaluate touch sensory pathways in Human. METHODS Two experiments were conducted in 23 healthy volunteers aged 20-30 years. In the first, mechanical detection thresholds (MDTs) were assessed using Semmes-Weinstein monofilaments and the CMS. In the second experiment, touch-evoked potentials (TEPs) elicited by tactile stimulation of the CMS on the left hand dorsum and left foot dorsum were recorded. Electroencephalographic (EEG) data were recorded at each cutaneous stimulation site in blocks of 20 tactile stimulations delivered by the CMS. The data were segmented into 1000-ms epochs. RESULTS MDTs measured by monofilaments and by the CMS were equivalent. Analyses of TEPs showed N2 and P2 components. The latencies of the N2 components on the hand dorsum and foot dorsum resulted in an estimated average conduction velocity of about 40 m.s-1, within the range of Aβ fibers. CONCLUSIONS These findings showed that the CMS could assess touch sensory pathways in young adults. SIGNIFICANCE The CMS can offer new research perspectives, as this device allows easy assessment of the MDT and enables estimation of fiber conduction velocities after tactile stimulation by the device synchronized with EEG recordings.
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Affiliation(s)
- Olivier Després
- Laboratoire de Neurosciences Cognitives et Adaptives (LNCA), UMR 7364 CNRS - Université de Strasbourg (UNISTRA), 12 rue Goethe, 67000 Strasbourg, France.
| | - Elisa Mamino
- Laboratoire de Neurosciences Cognitives et Adaptives (LNCA), UMR 7364 CNRS - Université de Strasbourg (UNISTRA), 12 rue Goethe, 67000 Strasbourg, France
| | - Thierry Pebayle
- Centre d'Investigations Neurocognitives et Neurophysiologiques (CI2N), UAR 3489 CNRS - Université de Strasbourg (UNISTRA), 21 rue Becquerel, 67087 Strasbourg Cedex, France
| | - Ségolène Lithfous
- Laboratoire de Neurosciences Cognitives et Adaptives (LNCA), UMR 7364 CNRS - Université de Strasbourg (UNISTRA), 12 rue Goethe, 67000 Strasbourg, France
| | - André Dufour
- Laboratoire de Neurosciences Cognitives et Adaptives (LNCA), UMR 7364 CNRS - Université de Strasbourg (UNISTRA), 12 rue Goethe, 67000 Strasbourg, France; Centre d'Investigations Neurocognitives et Neurophysiologiques (CI2N), UAR 3489 CNRS - Université de Strasbourg (UNISTRA), 21 rue Becquerel, 67087 Strasbourg Cedex, France
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EEG-based sensory testing reveals altered nociceptive processing in elite endurance athletes. Exp Brain Res 2023; 241:341-354. [PMID: 36520191 PMCID: PMC9894977 DOI: 10.1007/s00221-022-06522-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/03/2022] [Indexed: 12/16/2022]
Abstract
Increased exercise loads, as observed in elite athletes, seem to modulate the subjective pain perception in healthy subjects. The combination of electroencephalography (EEG) and standardized noxious stimulation can contribute to an objective assessment of the somatosensory stimulus processing. We assessed the subjective pain ratings and the electroencephalogram (EEG)-based response after standardized noxious mechanical and thermal stimuli as well as during conditioned pain modulation (CPM) in 26 elite endurance athletes and compared them to 26 recreationally active controls. Elite endurance athletes had consistently stronger somatosensory responses in the EEG to both mechanical and thermal noxious stimuli than the control group. We observed no significant group differences in the subjective pain ratings, which may have been influenced by our statistics and choice of stimuli. The CPM testing revealed that our conditioning stimulus modulated the subjective pain perception only in the control group, whereas the EEG indicated a modulatory effect of the conditioning stimulus on the spectral response only in the athletes group. We conclude that a higher activation in the cortical regions that process nociceptive information may either be an indicator for central sensitization or an altered stimulus salience in the elite endurance athletes' group. Our findings from our CPM testing were limited by our methodology. Further longitudinal studies are needed to examine if exercise-induced changes in the somatosensory system might have a critical impact on the long-term health of athletes.
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