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Warsito IF, Komosar M, Bernhard MA, Fiedler P, Haueisen J. Flower electrodes for comfortable dry electroencephalography. Sci Rep 2023; 13:16589. [PMID: 37789022 PMCID: PMC10547758 DOI: 10.1038/s41598-023-42732-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 09/14/2023] [Indexed: 10/05/2023] Open
Abstract
Dry electroencephalography (EEG) electrodes provide rapid, gel-free, and easy EEG preparation, but with limited wearing comfort. We propose a novel dry electrode comprising multiple tilted pins in a flower-like arrangement. The novel Flower electrode increases wearing comfort and contact area while maintaining ease of use. In a study with 20 volunteers, we compare the performance of a novel 64-channel dry Flower electrode cap to a commercial dry Multipin electrode cap in sitting and supine positions. The wearing comfort of the Flower cap was rated as significantly improved both in sitting and supine positions. The channel reliability and average impedances of both electrode systems were comparable. Averaged VEP components showed no considerable differences in global field power amplitude and latency, as well as in signal-to-noise ratio and topography. No considerable differences were found in the power spectral density of the resting state EEGs between 1 and 40 Hz. Overall, our findings provide evidence for equivalent channel reliability and signal characteristics of the compared cap systems in the sitting and supine positions. The reliability, signal quality, and significantly improved wearing comfort of the Flower electrode allow new fields of applications for dry EEG in long-term monitoring, sensitive populations, and recording in supine position.
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Affiliation(s)
- Indhika Fauzhan Warsito
- Institute of Biomedical Engineering and Informatics at the Technische Universität Ilmenau, Ilmenau, Germany
| | - Milana Komosar
- Institute of Biomedical Engineering and Informatics at the Technische Universität Ilmenau, Ilmenau, Germany
| | - Maria Anne Bernhard
- Institute of Biomedical Engineering and Informatics at the Technische Universität Ilmenau, Ilmenau, Germany
| | - Patrique Fiedler
- Institute of Biomedical Engineering and Informatics at the Technische Universität Ilmenau, Ilmenau, Germany
| | - Jens Haueisen
- Institute of Biomedical Engineering and Informatics at the Technische Universität Ilmenau, Ilmenau, Germany.
- Department of Neurology, Biomagnetic Center, University Hospital Jena, Jena, Germany.
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Guillard R, Decobecq F, Fraysse MJ, Favre A, Congedo M, Loche V, Boyer M, Londero A. Validated French translation of the ESIT-SQ standardized tinnitus screening questionnaire. Eur Ann Otorhinolaryngol Head Neck Dis 2023; 140:153-157. [PMID: 36609115 DOI: 10.1016/j.anorl.2022.12.007] [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] [Indexed: 01/06/2023]
Abstract
OBJECTIVES The heterogeneity of tinnitus in terms of etiology, presentation and sometimes severe impact on quality of life hinders treatment and clinical research. The European School for Interdisciplinary Tinnitus Research Screening Questionnaire (ESIT-SQ) collects standardized tinnitus characteristics for patient subtyping. A validated French translation of the ESIT-SQ is presented here. METHOD On the initiative of the French Interdisciplinary Tinnitus Association (AFREPA), 3 translators (1 professional translator, 1 clinician and 1 researcher) were missioned to translate the English version of the ESIT-SQ into French, adhering to good practice guidelines. Nine patients were recruited with the help of the France-Acouphènes patient association, to test and validate the translation. Lastly, an exploratory survey of responses to the French questionnaire was conducted online via the Siopi mobile phone application. RESULTS The French translation of the ESIT-SQ was successfully validated. 105 patients responded to the exploratory survey, and their characteristics are presented here. CONCLUSION This new validated French translation of the ESIT-SQ will enable epidemiological and clinical data to be collected in French-speaking populations, and thus compiled and compared with data collected with other versions of this questionnaire already published in other languages.
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Affiliation(s)
- R Guillard
- Université de Grenoble Alpes, CNRS, Grenoble INP, GIPSA-lab, Grenoble, France; Siopi SAS, Paris, France.
| | - F Decobecq
- Association Francophone des Équipes Pluridisciplinaires en Acouphénologie, 10, rue Falguière, 75015 Paris, France
| | - M-J Fraysse
- Association Francophone des Équipes Pluridisciplinaires en Acouphénologie, 10, rue Falguière, 75015 Paris, France; Service ORL, centre hospitalier universitaire Purpan, Toulouse, France
| | | | - M Congedo
- Université de Grenoble Alpes, CNRS, Grenoble INP, GIPSA-lab, Grenoble, France
| | - V Loche
- Association Francophone des Équipes Pluridisciplinaires en Acouphénologie, 10, rue Falguière, 75015 Paris, France; Service ORL, centre régional hospitalier universitaire de Lille, Lille, France
| | - M Boyer
- Association Francophone des Équipes Pluridisciplinaires en Acouphénologie, 10, rue Falguière, 75015 Paris, France; Toulouse NeuroImaging Center (ToNIC), Inserm-University of Toulouse Paul Sabatier, Toulouse, France
| | - A Londero
- Association Francophone des Équipes Pluridisciplinaires en Acouphénologie, 10, rue Falguière, 75015 Paris, France; Hôpital Européen Georges-Pompidou, service d'oto-rhino-laryngologie et chirurgie cervico-faciale, Paris,, France
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Kleinjung T, Meyer M, Neff P. Neurofeedback for tinnitus treatment: an innovative method with promising potential. Brain Commun 2023; 5:fcad209. [PMID: 37577379 PMCID: PMC10414139 DOI: 10.1093/braincomms/fcad209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 06/20/2023] [Accepted: 07/26/2023] [Indexed: 08/15/2023] Open
Abstract
This scientific commentary refers to 'Does it matter what is trained? A randomized controlled trial evaluating the specificity of alpha/delta ratio neurofeedback in reducing tinnitus symptoms 'by Jensen et al. (https://doi.org/10.1093/braincomms/fcad185).
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Affiliation(s)
- Tobias Kleinjung
- Department of Otorhinolaryngology—Head and Neck Surgery, University Hospital of Zurich, University of Zurich, 8091 Zurich, Switzerland
| | - Martin Meyer
- Department of Comparative Language Science, University of Zurich, 8050 Zurich, Switzerland
| | - Patrick Neff
- Department of Otorhinolaryngology—Head and Neck Surgery, University Hospital of Zurich, University of Zurich, 8091 Zurich, Switzerland
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany
- Centre for Cognitive Neuroscience, University of Salzburg, 5020 Salzburg, Austria
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Ng CR, Fiedler P, Kuhlmann L, Liley D, Vasconcelos B, Fonseca C, Tamburro G, Comani S, Lui TKY, Tse CY, Warsito IF, Supriyanto E, Haueisen J. Multi-Center Evaluation of Gel-Based and Dry Multipin EEG Caps. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22208079. [PMID: 36298430 PMCID: PMC9612204 DOI: 10.3390/s22208079] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/13/2022] [Accepted: 10/19/2022] [Indexed: 05/27/2023]
Abstract
Dry electrodes for electroencephalography (EEG) allow new fields of application, including telemedicine, mobile EEG, emergency EEG, and long-term repetitive measurements for research, neurofeedback, or brain-computer interfaces. Different dry electrode technologies have been proposed and validated in comparison to conventional gel-based electrodes. Most previous studies have been performed at a single center and by single operators. We conducted a multi-center and multi-operator study validating multipin dry electrodes to study the reproducibility and generalizability of their performance in different environments and for different operators. Moreover, we aimed to study the interrelation of operator experience, preparation time, and wearing comfort on the EEG signal quality. EEG acquisitions using dry and gel-based EEG caps were carried out in 6 different countries with 115 volunteers, recording electrode-skin impedances, resting state EEG and evoked activity. The dry cap showed average channel reliability of 81% but higher average impedances than the gel-based cap. However, the dry EEG caps required 62% less preparation time. No statistical differences were observed between the gel-based and dry EEG signal characteristics in all signal metrics. We conclude that the performance of the dry multipin electrodes is highly reproducible, whereas the primary influences on channel reliability and signal quality are operator skill and experience.
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Affiliation(s)
- Chuen Rue Ng
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, 98693 Ilmenau, Germany
| | - Patrique Fiedler
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, 98693 Ilmenau, Germany
| | - Levin Kuhlmann
- Faculty of Information Technology, Monash University, Building 63, 25 Exhibition Walk, Clayton, VIC 3800, Australia
| | - David Liley
- Brain and Psychological Sciences Research Centre, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia
| | - Beatriz Vasconcelos
- Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
| | - Carlos Fonseca
- Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
- Institute of Science and Innovation in Mechanical and Industrial Engineering, LAETA/INEGI, 4200-465 Porto, Portugal
| | - Gabriella Tamburro
- BIND-Behavioral Imaging and Neural Dynamics Center, University “G. d’Annunzio” of Chieti–Pescara, Via Luigi Polacchi, 11, 66100 Chieti, Italy
| | - Silvia Comani
- BIND-Behavioral Imaging and Neural Dynamics Center, University “G. d’Annunzio” of Chieti–Pescara, Via Luigi Polacchi, 11, 66100 Chieti, Italy
| | - Troby Ka-Yan Lui
- Department of Psychology, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
- Center of Brain, Behavior and Metabolism, University of Lübeck, Marie-Curie-Straße, 23562 Lübeck, Germany
| | - Chun-Yu Tse
- Department of Social and Behavioural Sciences, City University of Hong Kong, Hong Kong, China
| | - Indhika Fauzhan Warsito
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, 98693 Ilmenau, Germany
| | - Eko Supriyanto
- IJN-UTM Cardiovascular Engineering Centre, School of Biomedical Engineering & Health Sciences, Universiti Teknologi Malaysia, Johor Bahru 81300, Malaysia
| | - Jens Haueisen
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, 98693 Ilmenau, Germany
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Self-Directed Neurofeedback Treatment for Subjective Tinnitus Patients Evaluated by Multimodal Functional Imaging. Neural Plast 2022; 2022:5114721. [PMID: 36304208 PMCID: PMC9596274 DOI: 10.1155/2022/5114721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 09/13/2022] [Accepted: 09/24/2022] [Indexed: 11/17/2022] Open
Abstract
Neurofeedback (NFB) is a relatively novel approach to the treatment of tinnitus, and prior studies have demonstrated that the increases in alpha activity rather than reduced delta power seem to drive these NFB-related improvements in tinnitus symptoms. The present study was therefore designed to explore whether the implementation of an alpha training protocol with a portable neurofeedback apparatus would achieve improvements in tinnitus patient symptoms. In this study, 38 tinnitus patients underwent NFB training while 18 were enrolled in a control group. The study was single-blinded such that only participants were not aware of their group assignments. Those in the NFB group underwent 15 NFB training sessions over 5 weeks, in addition to pre- and posttraining tests including the Tinnitus Handicap Inventory (THI), Tinnitus Handicap Questionnaire (THQ), visual analog scales (VAS), electroencephalography (EEG), and functional magnetic resonance imaging (fMRI). Our result find that when the THI, THQ, and VAS scores of patients in the two groups were assessed after a 5-week training period, these scores were unchanged in control patients whereas they had significantly improved in the NFB group patients. EEG analyses revealed that the alpha band was increased in the occipital lobe following NFB treatment, while fMRI indicated an increase in regional homogeneity (ReHo) in the right frontal lobe of patients in the NFB group after treatment that was negatively correlated with THI and VAS scores. The results of this analysis indicate that alpha NFB training can be effectively used to reduce tinnitus-related distress and sound perception in patients.
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Abouzari M, Tawk K, Lee D, Djalilian HR. Migrainous Vertigo, Tinnitus, and Ear Symptoms and Alternatives. Otolaryngol Clin North Am 2022; 55:1017-1033. [PMID: 36150941 PMCID: PMC9580398 DOI: 10.1016/j.otc.2022.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Migraine headaches frequently coexist with vestibular symptoms such as vertigo, motion sickness, and gait instability. Migraine-related vasospasm can also damage the inner ear, which results in symptoms such as sudden sensorineural hearing loss and resultant tinnitus. The pathophysiology of these symptoms is not yet fully understood, and despite their prevalence, there is no universally approved management. This review summarizes the data on complementary and integrative medicine in treating patients with migrainous ear disorders.
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Affiliation(s)
- Mehdi Abouzari
- Division of Neurotology and Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California Irvine, 19182 Jamboree Road, Otolaryngology-5386, Irvine, CA 92697, USA
| | - Karen Tawk
- Division of Neurotology and Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California Irvine, 19182 Jamboree Road, Otolaryngology-5386, Irvine, CA 92697, USA
| | - Darlene Lee
- Susan Samueli Integrative Health Institute, University of California, 5141 California Avenue, Suite 200B, Irvine, CA 92617, USA
| | - Hamid R Djalilian
- Division of Neurotology and Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California Irvine, 19182 Jamboree Road, Otolaryngology-5386, Irvine, CA 92697, USA; Department of Biomedical Engineering, University of California, Irvine, USA.
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