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Andrievskaia P, Berti S, Spaniol J, Keshavarz B. Exploring neurophysiological correlates of visually induced motion sickness using electroencephalography (EEG). Exp Brain Res 2023; 241:2463-2473. [PMID: 37650899 DOI: 10.1007/s00221-023-06690-x] [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] [Received: 05/23/2023] [Accepted: 08/12/2023] [Indexed: 09/01/2023]
Abstract
Visually induced motion sickness (VIMS) is a common phenomenon when using visual devices such as smartphones and virtual reality applications, with symptoms including nausea, fatigue, and headache. To date, the neuro-cognitive processes underlying VIMS are not fully understood. Previous studies using electroencephalography (EEG) delivered mixed findings, with some reporting an increase in delta and theta power, and others reporting increases in alpha and beta frequencies. The goal of the study was to gain further insight into EEG correlates for VIMS. Participants viewed a VIMS-inducing visual stimulus, composed of moving black-and-white vertical bars presented on an array of three adjacent monitors. The EEG was recorded during visual stimulation and VIMS ratings were recorded after each trial using the Fast Motion Sickness Scale. Time-frequency analyses were conducted comparing neural activity of participants reporting minimal VIMS (n = 21) and mild-moderate VIMS (n = 12). Results suggested a potential increase in delta power in the centro-parietal regions (CP2) and a decrease in alpha power in the central regions (Cz) for participants experiencing mild-moderate VIMS compared to those with minimal VIMS. Event-related spectral perturbations (ERSPs) suggested that group differences in EEG activity developed with increasing duration of a trial. These results support the hypothesis that the EEG might be sensitive to differences in information processing in VIMS and minimal VIMS contexts, and indicate that it may be possible to identify neurophysiological correlate of VIMS. Differences in EEG activity related to VIMS may reflect differential processing of conflicting visual and vestibular sensory information.
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Affiliation(s)
- Polina Andrievskaia
- KITE Research Institute, Toronto Rehabilitation Institute-University Health Network, 550 University Avenue, Toronto, ON, M5G 2A2, Canada
- Department of Psychology, Toronto Metropolitan University, Toronto, Canada
| | - Stefan Berti
- Department of Clinical Psychology and Neuropsychology, Johannes Gutenberg University, Mainz, Germany
| | - Julia Spaniol
- Department of Psychology, Toronto Metropolitan University, Toronto, Canada
| | - Behrang Keshavarz
- KITE Research Institute, Toronto Rehabilitation Institute-University Health Network, 550 University Avenue, Toronto, ON, M5G 2A2, Canada.
- Department of Psychology, Toronto Metropolitan University, Toronto, Canada.
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Jacob C, Olliges E, Haile A, Hoffmann V, Jacobi B, Steinkopf L, Lanz M, Wittmann M, Tschöp MH, Meissner K. Placebo effects on nausea and motion sickness are resistant to experimentally-induced stress. Sci Rep 2023; 13:9908. [PMID: 37336972 DOI: 10.1038/s41598-023-36296-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 05/31/2023] [Indexed: 06/21/2023] Open
Abstract
Nausea often occurs in stressful situations, such as chemotherapy or surgery. Clinically relevant placebo effects in nausea have been demonstrated, but it remains unclear whether stress has an impact on these effects. The aim of this experimental study was to investigate the interplay between acute stress and placebo effects in nausea. 80 healthy female volunteers susceptible to motion sickness were randomly assigned to either the Maastricht Acute Stress Test or a non-stress control condition, and to either placebo treatment or no treatment. Nausea was induced by a virtual vection drum and behavioral, psychophysiological as well as humoral parameters were repeatedly assessed. Manipulation checks confirmed increased cortisol levels and negative emotions in the stressed groups. In the non-stressed groups, the placebo intervention improved nausea, symptoms of motion sickness, and gastric myoelectrical activity (normo-to-tachy (NTT) ratio). In the stressed groups, the beneficial effects of the placebo intervention on nausea and motion sickness remained unchanged, whereas no improvement of the gastric NTT ratio was observed. Results suggest that placebo effects on symptoms of nausea and motion sickness are resistant to experimentally-induced stress. Stress most likely interfered with the validity of the gastric NTT ratio to measure nausea and thus the gastric placebo effect.
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Affiliation(s)
- Carmen Jacob
- Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336, Munich, Germany
- Wessex Neurological Centre, University Hospital Southampton and Clinical Neurosciences, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, SO16 6YD, UK
| | - Elisabeth Olliges
- Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336, Munich, Germany
- Department of Psychosomatic Medicine and Psychotherapy, Klinik Barmelweid AG, 5017, Barmelweid, Switzerland
- Division of Health Promotion, Coburg University of Applied Sciences and Arts, Friedrich-Streib-Str. 2, 96450, Coburg, Germany
| | - Anja Haile
- Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336, Munich, Germany
| | - Verena Hoffmann
- Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336, Munich, Germany
| | - Benjamin Jacobi
- Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336, Munich, Germany
- Department of Psychiatry, University of Connecticut Health Center, H1010, Farmington, CT, 06030-1410, USA
| | - Leander Steinkopf
- Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336, Munich, Germany
| | - Marina Lanz
- Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336, Munich, Germany
| | - Marc Wittmann
- Institute for Frontier Areas of Psychology and Mental Health, 79098, Freiburg, Germany
| | - Matthias H Tschöp
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Zentrum München, 85764, Neuherberg, Germany
- Division of Metabolic Diseases, Department of Medicine, Technische Universität München, 81675, Munich, Germany
| | - Karin Meissner
- Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336, Munich, Germany.
- Division of Health Promotion, Coburg University of Applied Sciences and Arts, Friedrich-Streib-Str. 2, 96450, Coburg, Germany.
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Varangot-Reille C, Sanger GJ, Andrews PLR, Herranz-Gomez A, Suso-Martí L, de la Nava J, Cuenca-Martínez F. Neural networks involved in nausea in adult humans: A systematic review. Auton Neurosci 2023; 245:103059. [PMID: 36580746 DOI: 10.1016/j.autneu.2022.103059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/20/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022]
Abstract
Nausea is a common clinical symptom, poorly managed with anti-emetic drugs. To identify potential brain regions which may be therapeutic targets we systematically reviewed brain imaging in subjects reporting nausea. The systematic review followed PRISMA statements with methodological quality (MINORS) and risk of bias (ROBINS-I) assessed. Irrespective of the nauseagenic stimulus the common (but not only) cortical structures activated were the inferior frontal gyrus (IFG), the anterior cingulate cortex (ACC) and the anterior insula (AIns) with some evidence for lateralization (Left-IFG, Right-AIns, Right-ACC). Basal ganglia structures (e.g., putamen) were also consistently activated. Inactivation was rarely reported but occurred mainly in the cerebellum and occipital lobe. During nausea, functional connectivity increased, mainly between the posterior and mid- cingulate cortex. Limitations include, a paucity of studies and stimuli, subject demographics, inconsistent definition and measurement of nausea. Structures implicated in nausea are discussed in the context of knowledge of central pathways for interoception, emotion and autonomic control. Comparisons are made between nausea and other aversive sensations as multimodal aversive conscious experiences.
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Affiliation(s)
- C Varangot-Reille
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain
| | - G J Sanger
- Center for Neuroscience, Surgery and Trauma, Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - P L R Andrews
- Division of Biomedical Sciences, St George's University of London, London, United Kingdom
| | - A Herranz-Gomez
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain
| | - L Suso-Martí
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain.
| | - J de la Nava
- Faculty of Medicine, University of Granada, Granada, Spain
| | - F Cuenca-Martínez
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain
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Kim TH, Lee MS, Lee H. Sham Acupuncture Is Not Just a Placebo. J Acupunct Meridian Stud 2022; 15:333-335. [DOI: 10.51507/j.jams.2022.15.6.333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/13/2022] [Accepted: 10/24/2022] [Indexed: 12/24/2022] Open
Affiliation(s)
- Tae-Hun Kim
- Korean Medicine Clinical Trial Center, Korean Medicine Hospital, Kyung Hee University, Seoul, Korea
| | - Myeong Soo Lee
- Division of Clinical Medicine, Korea Institute of Oriental Medicine, Daejeon, Korea
| | - Hyangsook Lee
- Acupuncture and Meridian Science Research Center, Kyung Hee University, Seoul, Korea
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