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Sezai T, Murphy MJ, Riddell N, Nguyen V, Crewther SG. Visual Processing During the Interictal Period Between Migraines: A Meta-Analysis. Neuropsychol Rev 2023; 33:765-782. [PMID: 36115887 PMCID: PMC10770263 DOI: 10.1007/s11065-022-09562-3] [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: 10/20/2021] [Accepted: 07/20/2022] [Indexed: 10/14/2022]
Abstract
Migraine is a poorly understood neurological disorder and a leading cause of disability in young adults, particularly women. Migraines are characterized by recurring episodes of severe pulsating unilateral headache and usually visual symptoms. Currently there is some disagreement in the electrophysiological literature regarding the universality of all migraineurs exhibiting physiological visual impairments also during interictal periods (i.e., the symptom free period between migraines). Thus, this meta-analysis investigated the evidence for altered visual function as measured electrophysiologically via pattern-reversal visual evoked potential (VEP) amplitudes and habituation in adult migraineurs with or without visual aura and controls in the interictal period. Twenty-three studies were selected for random effects meta-analysis which demonstrated slightly diminished VEP amplitudes in the early fast conducting P100 component but not in N135, and substantially reduced habituation in the P100 and the N135 in migraineurs with and without visual aura symptoms compared to controls. No statistical differences were found between migraineurs with and without aura, possibly due to inadequate studies. Overall, insufficient published data and substantial heterogeneity between studies was observed for all latency components of pattern-reversal VEP, highlighting the need for further electrophysiological experimentation and more targeted temporal analysis of visual function, in episodic migraineurs.
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Affiliation(s)
- Timucin Sezai
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Melanie J Murphy
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Nina Riddell
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Vinh Nguyen
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Sheila G Crewther
- Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, VIC, 3086, Australia.
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Alshamrani FJ, AlSheikh MH, Almuslim N, Al Azman H, Alkhamis F, Nazish S, Alnajashi H, Alsulaiman A. Prospective Matched Case-Control Study of Over-Early P100 Wave Latency in Migraine with Aura. Biomedicines 2023; 11:2979. [PMID: 38001979 PMCID: PMC10669729 DOI: 10.3390/biomedicines11112979] [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: 09/25/2023] [Revised: 10/19/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023] Open
Abstract
A sizable portion of the world's population suffers from migraines with aura. The purpose of this research is to describe the findings of a case-control study that was carried out to gain a better understanding of how migraine with aura manifests. The research looked at the P100 delay of the visual-evoked potential in both eyes of 92 healthy people and 44 patients who suffered from migraines with visual aura. All of the participants in the study were recruited from King Fahad University Hospital in Saudi Arabia. Both sets of people had the same ancestry and originated from the same location. Patients who suffered from migraines with aura exhibited a significantly shorter P100 delay in both eyes compared to healthy controls (p = 0.001), which is evidence that their early visual processing was distinct. In order to arrive at these findings, we compared people who suffer from migraines with aura to people who do not suffer from migraines and used them as subjects. These findings contribute to the ongoing attempts to bring the disease under control and provide vitally significant new information regarding the functioning of headaches with auras. The primary focus of study in the future should be on determining the nature of the connection between issues with early visual processing and headaches with aura.
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Affiliation(s)
- Foziah J. Alshamrani
- Department of Neurology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia (S.N.)
| | - Mona Hmoud AlSheikh
- Physiology Department, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia;
| | - Noora Almuslim
- Neurology Department, King Fahad University Hospital, Dammam, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Hatem Al Azman
- Neurology Department, King Fahad University Hospital, Dammam, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia
| | - Fahad Alkhamis
- Department of Neurology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia (S.N.)
| | - Saima Nazish
- Department of Neurology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia (S.N.)
| | - Hind Alnajashi
- Neurology Division, Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Abdulla Alsulaiman
- Department of Neurology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia (S.N.)
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3
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Pohl H, Sandor PS, Moisa M, Ruff CC, Schoenen J, Luechinger R, O'Gorman R, Riederer F, Gantenbein AR, Michels L. Occipital transcranial direct current stimulation in episodic migraine patients: effect on cerebral perfusion. Sci Rep 2023; 13:13944. [PMID: 37626074 PMCID: PMC10457373 DOI: 10.1038/s41598-023-39659-5] [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: 02/06/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Cerebral blood flow differs between migraine patients and healthy controls during attack and the interictal period. This study compares the brain perfusion of episodic migraine patients and healthy controls and investigates the influence of anodal transcranial direct current stimulation (tDCS) over the occipital cortex. We included healthy adult controls and episodic migraineurs. After a 28-day baseline period and the baseline visit, migraine patients received daily active or sham anodal tDCS over the occipital lobe for 28 days. All participants underwent a MRI scan at baseline; migraineurs were also scanned shortly after the stimulation period and about five months later. At baseline, brain perfusion of migraine patients and controls differed in several areas; among the stimulated areas, perfusion was increased in the cuneus of healthy controls. At the first visit, the active tDCS group had an increased blood flow in regions processing visual stimuli and a decreased perfusion in other areas. Perfusion did not differ at the second follow-up visit. The lower perfusion level in migraineurs in the cuneus indicates a lower preactivation level. Anodal tDCS over the occipital cortex increases perfusion of several areas shortly after the stimulation period, but not 5 months later. An increase in the cortical preactivation level could mediate the transient reduction of the migraine frequency.Trial registration: NCT03237754 (registered at clincicaltrials.gov; full date of first trial registration: 03/08/2017).
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Affiliation(s)
- Heiko Pohl
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - Peter S Sandor
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
- Department of Neurology and Neurorehabilitation, ZURZACH Care, Bad Zurzach, Switzerland
| | - Marius Moisa
- Zurich Center for Neuroeconomics (ZNE), Department of Economics, University of Zurich, Zurich, Switzerland
| | - Christian C Ruff
- Zurich Center for Neuroeconomics (ZNE), Department of Economics, University of Zurich, Zurich, Switzerland
| | - Jean Schoenen
- Headache Research Unit, Department of Neurology-Citadelle Hospital, University of Liège, Liège, Belgium
| | - Roger Luechinger
- Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Zurich, Switzerland
| | - Ruth O'Gorman
- Center for MR-Research, University Children's Hospital, Zurich, Switzerland
- Children's Research Center, University Children's Hospital, Zurich, Switzerland
| | - Franz Riederer
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
- Department of Neurology, Clinic Hietzing, Vienna, Austria
- Karl Landsteiner Institute for Epilepsy Research and Cognitive Neurology, Vienna, Austria
| | - Andreas R Gantenbein
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
- Department of Neurology and Neurorehabilitation, ZURZACH Care, Bad Zurzach, Switzerland
| | - Lars Michels
- Department of Neuroradiology, Clinical Neuroscience Center, University Hospital Zurich, 8091, Zurich, Switzerland.
- Clinical Neuroscience Center, University Hospital Zurich, Zurich, Switzerland.
- Neuroscience Center Zurich, University of Zurich and Swiss Federal Institute of Technology Zurich, Zurich, Switzerland.
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Marti-Marca A, Vilà-Balló A, Cerda-Company X, Ikumi N, Torres-Ferrus M, Caronna E, Gallardo VJ, Alpuente A, Torralba Cuello M, Soto-Faraco S, Pozo-Rosich P. Exploring sensory sensitivity, cortical excitability, and habituation in episodic migraine, as a function of age and disease severity, using the pattern-reversal task. J Headache Pain 2023; 24:104. [PMID: 37545005 PMCID: PMC10405481 DOI: 10.1186/s10194-023-01618-w] [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: 03/10/2023] [Accepted: 06/20/2023] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND Migraine is a cyclic, neurosensory disorder characterized by recurrent headaches and altered sensory processing. The latter is manifested in hypersensitivity to visual stimuli, measured with questionnaires and sensory thresholds, as well as in abnormal cortical excitability and a lack of habituation, assessed with visual evoked potentials elicited by pattern-reversal stimulation. Here, the goal was to determine whether factors such as age and/or disease severity may exert a modulatory influence on sensory sensitivity, cortical excitability, and habituation. METHODS Two similar experiments were carried out, the first comparing 24 young, episodic migraine patients and 28 healthy age- and gender-matched controls and the second 36 middle-aged, episodic migraine patients and 30 healthy age- and gender-matched controls. A neurologist confirmed the diagnoses. Migraine phases were obtained using eDiaries. Sensory sensitivity was assessed with the Sensory Perception Quotient and group comparisons were carried out. We obtained pattern-reversal visual evoked potentials and calculated the N1-P1 Peak-to-Peak amplitude. Two linear mixed-effects models were fitted to these data. The first model had Block (first block, last block) and Group (patients, controls) as fixed factors, whereas the second model had Trial (all trials) and Group as fixed factors. Participant was included as a random factor in both. N1-P1 first block amplitude was used to assess cortical excitability and habituation was defined as a decrease of N1-P1 amplitude across Blocks/Trials. Both experiments were performed interictally. RESULTS The final samples consisted of 18 patients with episodic migraine and 27 headache-free controls (first experiment) and 19 patients and 29 controls (second experiment). In both experiments, patients reported increased visual hypersensitivity on the Sensory Perception Quotient as compared to controls. Regarding N1-P1 peak-to-peak data, there was no main effect of Group, indicating no differences in cortical excitability between groups. Finally, significant main effects of both Block and Trial were found indicating habituation in both groups, regardless of age and headache frequency. CONCLUSIONS The results of this study yielded evidence for significant hypersensitivity in patients but no significant differences in either habituation or cortical excitability, as compared to headache-free controls. Although the alterations in patients may be less pronounced than originally anticipated they demonstrate the need for the definition and standardization of optimal methodological parameters.
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Affiliation(s)
- Angela Marti-Marca
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain
| | - Adrià Vilà-Balló
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain
| | - Xim Cerda-Company
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain
| | - Nara Ikumi
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain
| | - Marta Torres-Ferrus
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain
- Headache Unit, Department of Neurology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Edoardo Caronna
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain
| | - Victor J Gallardo
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain
| | - Alicia Alpuente
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain
- Headache Unit, Department of Neurology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Mireia Torralba Cuello
- Multisensory Research Group, Center for Brain and Cognition, Pompeu Fabra University, 08005, Barcelona, Spain
| | - Salvador Soto-Faraco
- Multisensory Research Group, Center for Brain and Cognition, Pompeu Fabra University, 08005, Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), 08010, Barcelona, Spain
| | - Patricia Pozo-Rosich
- Headache and Neurological Pain Research Group, Vall d'Hebron Institute of Research (VHIR), Department of Medicine, Universitat Autonoma Barcelona, Barcelona, Spain.
- Headache Unit, Department of Neurology, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
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Puledda F, Viganò A, Sebastianelli G, Parisi V, Hsiao FJ, Wang SJ, Chen WT, Massimini M, Coppola G. Electrophysiological findings in migraine may reflect abnormal synaptic plasticity mechanisms: A narrative review. Cephalalgia 2023; 43:3331024231195780. [PMID: 37622421 DOI: 10.1177/03331024231195780] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
BACKGROUND The cyclical brain disorder of sensory processing accompanying migraine phases lacks an explanatory unified theory. METHODS We searched Pubmed for non-invasive neurophysiological studies on migraine and related conditions using transcranial magnetic stimulation, electroencephalography, visual and somatosensory evoked potentials. We summarized the literature, reviewed methods, and proposed a unified theory for the pathophysiology of electrophysiological abnormalities underlying migraine recurrence. RESULTS All electrophysiological modalities have determined specific changes in brain dynamics across the different phases of the migraine cycle. Transcranial magnetic stimulation studies show unbalanced recruitment of inhibitory and excitatory circuits, more consistently in aura, which ultimately results in a substantially distorted response to neuromodulation protocols. Electroencephalography investigations highlight a steady pattern of reduced alpha and increased slow rhythms, largely located in posterior brain regions, which tends to normalize closer to the attacks. Finally, non-painful evoked potentials suggest dysfunctions in habituation mechanisms of sensory cortices that revert during ictal phases. CONCLUSION Electrophysiology shows dynamic and recurrent functional alterations within the brainstem-thalamus-cortex loop varies continuously and recurrently in migraineurs. Given the central role of these structures in the selection, elaboration, and learning of sensory information, these functional alterations suggest chronic, probably genetically determined dysfunctions of the synaptic short- and long-term learning mechanisms.
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Affiliation(s)
- Francesca Puledda
- Headache Group, Wolfson CARD, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | | | - Gabriele Sebastianelli
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
| | | | - Fu-Jung Hsiao
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shuu-Jiun Wang
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Wei-Ta Chen
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Marcello Massimini
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Gianluca Coppola
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, Latina, Italy
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Coppola G, Ambrosini A. What has neurophysiology revealed about migraine and chronic migraine? HANDBOOK OF CLINICAL NEUROLOGY 2023; 198:117-133. [PMID: 38043957 DOI: 10.1016/b978-0-12-823356-6.00003-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Since the first electroencephalographic recordings obtained by Golla and Winter in 1959, researchers have used a variety of neurophysiological techniques to determine the mechanisms underlying recurrent migraine attacks. Neurophysiological methods have shown that the brain during the interictal phase of an episodic migraine is characterized by a general hyperresponsiveness to sensory stimuli, a malfunction of the monoaminergic brainstem circuits, and by functional alterations of the thalamus and thalamocortical loop. All of these alterations vary plastically during the phases of the migraine cycle and interictally with the days following the attack. Both episodic migraineurs recorded during an attack and chronic migraineurs are characterized by a general increase in the cortical amplitude response to peripheral sensory stimuli; this is an electrophysiological hallmark of a central sensitization process that is further reinforced through medication overuse. Considering the large-scale functional involvement and the main roles played by the brainstem-thalamo-cortical network in selection, elaboration, and learning of relevant sensory information, future research should move from searching for one specific primary site of dysfunction at the macroscopic level, to the chronic, probably genetically determined, molecular dysfunctions at the synaptic level, responsible for short- and long-term learning mechanisms.
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Affiliation(s)
- Gianluca Coppola
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino - I.C.O.T., Latina, Italy
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7
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Abdulhussein MA, An X, Alsakaa AA, Ming D. Lack of habituation in migraine patients and Evoked Potential types: Analysis study from EEG signals. JOURNAL OF INFORMATION & OPTIMIZATION SCIENCES 2022. [DOI: 10.1080/02522667.2022.2095958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Msallam Abbas Abdulhussein
- Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China
- Faculty of Computer Science and Mathematics, Kufa University, Najaf, Iraq
| | - Xingwei An
- Tianjin International Joint Research Centre for Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China
| | - Akeel A. Alsakaa
- Department of Computer Science, University of Kerbala, Karbala, Iraq
| | - Dong Ming
- Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China
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8
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Stimulus probability affects the visual N700 component of the event-related potential. Clin Neurophysiol 2020; 131:655-664. [PMID: 31978850 DOI: 10.1016/j.clinph.2019.11.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 11/11/2019] [Accepted: 11/22/2019] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To examine whether the occipito-temporal visual N700 component of the event-related potential is sensitive to stimulus probabilities. METHODS P1, N1, P3, and, in particular, the occipito-temporal N700 component of the event-related potential were analysed in response to frequent and rare non-target letters of a continuous performance task in 200 healthy adolescents. Additionally, amplitude habituation with time was examined for the occipito-temporal N700 and N1 components. RESULTS The visual P1, N1, and occipito-temporal N700 components were significantly larger in response to rare letters than to frequent letters, whereas the P3 component demonstrated no amplitude difference. Over time, the occipito-temporal N700 amplitude decreased in response to the rare letters, while the N1 amplitude increased, to both, frequent and rare letters. CONCLUSIONS This study provides first evidence that the visual occipito-temporal N700 is sensitive to stimulus probabilities, suggesting an enhanced post-processing of rare stimuli in secondary visual areas. The distinct habituation patterns of occipito-temporal N700 and N1 amplitudes distinguish repetition effects on stimulus post-processing (N700) from those on perception (N1). SIGNIFICANCE The enhanced N700 component to rare stimuli might reflect an orienting response and underlying attentional processes. The N700 sensitivity to stimulus probabilities should be examined in patient groups with attentional deficits.
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9
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Susvirkar AA, Velusami D, Srinivasan N. Evaluation of habituation to visual evoked potentials using pattern reversal among migraine individuals - a cross-sectional study. J Basic Clin Physiol Pharmacol 2020; 31:/j/jbcpp.ahead-of-print/jbcpp-2019-0217/jbcpp-2019-0217.xml. [PMID: 31940287 DOI: 10.1515/jbcpp-2019-0217] [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: 08/14/2019] [Accepted: 11/08/2019] [Indexed: 06/10/2023]
Abstract
Background Migraine is a multifaceted chronic disease with common ocular symptoms. Habituation is the decremental response on repeated stimulations. The literature review indicates controversial results regarding habituation in migraine individuals. The present study aimed to compare the habituation response using visual evoked potential (VEP) measures among migraine and control subjects. Methods This was a cross-sectional study performed among migraine individuals attending the Department of Medicine and Neurology, of the age group of 18-30 years at Sri Manakula Vinayagar Medical College and Hospital, Puducherry. Habituation was evaluated in the two groups, control (n = 40) and migraine (n = 40), using pattern reversal VEP. The recording was done for 15-min duration and divided into four blocks of 3.8 min each. The results were compared employing Student t-test, and p < 0.05 was considered to be statistically significant. Results Our study indicates that latency N75, N145, and P100 amplitude showed significant differences between the two groups. In the right eye, on comparing the first and fourth block P100 amplitude in the migraine group, a significant increase (p < 0.001) was observed in the fourth block. Similarly, in the left eye, the control group showed a significant decrease in the fourth block (p = 0.002), whereas the migraine group showed a significant increase (p < 0.001). Conclusions The present study concludes that migraine individuals report deficient habituation, evaluated using pattern reversal VEP.
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Affiliation(s)
- Ashish Anand Susvirkar
- Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala 695011, India
| | - Deepika Velusami
- Department of Physiology, Sri Manakula Vinayagar Medical College and Hospital, Madagadipet, Puducherry 605107, India
| | - Nithiyasree Srinivasan
- Sri Manakula Vinayagar Medical College and Hospital, Madagadipet, Puducherry 605107, India
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10
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Terracciano R, Sanginario A, Barbero S, Putignano D, Canavese L, Demarchi D. Pattern-Reversal Visual Evoked Potential on Smart Glasses. IEEE J Biomed Health Inform 2020; 24:226-234. [PMID: 30794193 DOI: 10.1109/jbhi.2019.2899774] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE This paper presents an integrated device, based on smart glasses, for the pattern-reversal visual evoked potential (PR-VEP) clinical test. METHODS Smart glasses are used to generate the checkerboard changing pattern, with its related red fixation point through an Android application. Electroencephalographic signals, for monitoring the stimulus generated by PR-VEP, were amplified close to the scalp and then transmitted wirelessly to a PC. A MATLAB real-time algorithm processed the incoming signals to extract the final PR-VEP signal. METHODS In total, 40 eyes (from 20 subjects, 12 males and 8 females between 24 and 28 years old) were tested and results were compared, with a commercial device for VEP clinical exam, to test the reproducibility and the efficacy of the proposed solution. RESULTS PR-VEPs generated by smart glasses showed typical triphasic waveforms: We observed promising results and components in moderate agreement with those obtained using commercial PR-VEP recorder, with potential for improvements after further refinement works. SIGNIFICANCE The proposed device leads the way for a portable and low-cost solution.
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11
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Kondziella D, Olsen MH, Lemale CL, Dreier JP. Migraine aura, a predictor of near-death experiences in a crowdsourced study. PeerJ 2019; 7:e8202. [PMID: 31824781 PMCID: PMC6898989 DOI: 10.7717/peerj.8202] [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: 09/06/2019] [Accepted: 11/13/2019] [Indexed: 12/20/2022] Open
Abstract
Background Near-death experiences (NDE) occur with imminent death and in situations of stress and danger but are poorly understood. Evidence suggests that NDE are associated with rapid eye movement (REM) sleep intrusion, a feature of narcolepsy. Previous studies further found REM abnormalities and an increased frequency of dream-enacting behavior in migraine patients, as well as an association between migraine with aura and narcolepsy. We therefore investigated if NDE are more common in people with migraine aura. Methods We recruited 1,037 laypeople from 35 countries and five continents, without any filters except for English language and age ≥18 years, via a crowdsourcing platform. Reports were validated using the Greyson NDE Scale. Results Eighty-one of 1,037 participants had NDE (7.8%; CI [6.3-9.7%]). There were no significant associations between NDE and age (p > 0.6, t-test independent samples) or gender (p > 0.9, Chi-square test). The only significant association was between NDE and migraine aura: 48 (6.1%) of 783 subjects without migraine aura and 33 (13.0%) of 254 subjects with migraine aura had NDE (p < 0.001, odds ratio (OR) = 2.29). In multiple logistic regression analysis, migraine aura remained significant after adjustment for age (p < 0.001, OR = 2.31), gender (p < 0.001, OR = 2.33), or both (p < 0.001, OR = 2.33). Conclusions In our sample, migraine aura was a predictor of NDE. This indirectly supports the association between NDE and REM intrusion and might have implications for the understanding of NDE, because a variant of spreading depolarization (SD), terminal SD, occurs in humans at the end of life, while a short-lasting variant of SD is considered the pathophysiological correlate of migraine aura.
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Affiliation(s)
- Daniel Kondziella
- Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Markus Harboe Olsen
- Department of Neuroanesthesiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Coline L Lemale
- Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany.,Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Jens P Dreier
- Department of Neurology, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany.,Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany.,Department of Experimental Neurology, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany.,Bernstein Center for Computational Neuroscience Berlin, Berlin, Germany.,Einstein Center for Neurosciences Berlin, Berlin, Germany
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12
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Lisicki M, D'Ostilio K, Erpicum M, Schoenen J, Magis D. Sunlight irradiance and habituation of visual evoked potentials in migraine: The environment makes its mark. Cephalalgia 2017; 38:1351-1360. [PMID: 28856911 DOI: 10.1177/0333102417730128] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background Migraine is a complex multifactorial disease that arises from the interaction between a genetic predisposition and an enabling environment. Habituation is considered as a fundamental adaptive behaviour of the nervous system that is often impaired in migraine populations. Given that migraineurs are hypersensitive to light, and that light deprivation is able to induce functional changes in the visual cortex recognizable through visual evoked potentials habituation testing, we hypothesized that regional sunlight irradiance levels could influence the results of visual evoked potentials habituation studies performed in different locations worldwide. Methods We searched the literature for visual evoked potentials habituation studies comparing healthy volunteers and episodic migraine patients and correlated their results with levels of local solar radiation. Results After reviewing the literature, 26 studies involving 1291 participants matched our inclusion criteria. Deficient visual evoked potentials habituation in episodic migraine patients was reported in 19 studies. Mean yearly sunlight irradiance was significantly higher in locations of studies reporting deficient habituation. Correlation analyses suggested that visual evoked potentials habituation decreases with increasing sunlight irradiance in migraine without aura patients. Conclusion Results from this hypothesis generating analysis suggest that variations in sunlight irradiance may induce adaptive modifications in visual processing systems that could be reflected in visual evoked potentials habituation, and thus partially account for the difference in results between studies performed in geographically distant centers. Other causal factors such as genetic differences could also play a role, and therefore well-designed prospective trials are warranted.
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Affiliation(s)
- Marco Lisicki
- 1 Headache Research Unit, University Department of Neurology CHR, Citadelle Hospital, Liege, Belgium
| | - Kevin D'Ostilio
- 1 Headache Research Unit, University Department of Neurology CHR, Citadelle Hospital, Liege, Belgium
| | - Michel Erpicum
- 2 Climatology and Topoclimatology Laboratory, Faculty of Sciences, Liège University, Liège, Belgium
| | - Jean Schoenen
- 1 Headache Research Unit, University Department of Neurology CHR, Citadelle Hospital, Liege, Belgium
| | - Delphine Magis
- 1 Headache Research Unit, University Department of Neurology CHR, Citadelle Hospital, Liege, Belgium
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Perrotta A, Anastasio MG, De Icco R, Coppola G, Ambrosini A, Serrao M, Sandrini G, Pierelli F. Frequency-Dependent Habituation Deficit of the Nociceptive Blink Reflex in Aura With Migraine Headache. Can Migraine Aura Modulate Trigeminal Excitability? Headache 2017; 57:887-898. [PMID: 28488755 DOI: 10.1111/head.13111] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/14/2017] [Accepted: 02/27/2017] [Indexed: 01/03/2023]
Abstract
OBJECTIVE To study the influence of the migraine aura on the trigeminal nociception, we investigated the habituation of the nociceptive blink reflex (nBR) R2 responses in aura with migraine headache (AwMH) and comparatively in migraine without aura (MWoA) and healthy subjects (HS). BACKGROUND A clear deficit of habituation in trigeminal nociceptive responses has been documented in MWoA; however, similar data in MWA are lacking. METHODS Seventeen AwMH, 29 MWoA, and 30 HS were enrolled and a nonrandomized clinical neurophysiological study examining nBR habituation by clinical diagnosis was devised. We delivered a series of 26 electrical stimuli, at different stimulation frequencies (SF) (0.05, 0.1, 0.2, 0.3, 0.5, and 1 Hz), subsequently subdivided in five blocks of five responses for each SF. The mean area values of the second to the fifth block expressed as the percentage of the mean area value of the first block were taken as an index of habituation for each SF. RESULTS A significant lower mean percentage decrease of the R2 area across all blocks was found at 1, 0.5, 0.3, and 0.2 Hz SF in MWoA and at 0.3 and 0.2 Hz SF in AwMH, when compared to HS. In the most representative fifth block of responses, we found in MWoA vs HS at 1 Hz, 57.0 ± 27.8 vs 30.6 ± 12.0; at 0.5 Hz, 54.8 ± 26.1 vs 32.51 ± 17.7; at 0.3 Hz, 44.7 ± 21.6 vs 27.6 ± 13.2; at 0.2 Hz, 61.3 ± 29.5 vs 32.6 ± 18.0, and in AwMH vs HS at 0.3 Hz, 52.7 ± 24.7 vs 27.6 ± 13.2; at 0.2 Hz, 69.3 ± 38.6 vs 32.6 ± 18.0 as mean ± SD of the R2 area percentage of the first block, respectively. Interestingly, AwMH subjects did not show differences in mean percentage decrease of the R2 area at 1 and 0.5 Hz SF when compared to HS. No differences between groups were found at 0.1 and 0.05 Hz SF. CONCLUSIONS We demonstrated in AwMH a deficit of habituation of the nBR R2 responses after repeated stimulations, although less pronounced than that observed in MWoA of comparable clinical severity. We hypothesize that AwMH and MWoA share some pathogenetic aspects, and also that migraine aura physiopathology may play a modulating role on the excitability of the nociceptive trigeminal pathways.
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Affiliation(s)
| | - Maria Grazia Anastasio
- IRCCS Neuromed, Pozzilli, IS, Italy.,Department of Neurology and Psychiatry, "Sapienza" University of Rome, Rome, Italy
| | - Roberto De Icco
- C. Mondino National Neurological Institute, Department of Brain and Behavioral Sciences, University of Pavia, Italy
| | - Gianluca Coppola
- Foundation IRCCS, Research Unit of Neurophysiology of Vision and Neurophthalmology, Rome, Italy Unit of Neurorehabilitation, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, ICOT, Latina, Italy
| | | | - Mariano Serrao
- Foundation IRCCS, Research Unit of Neurophysiology of Vision and Neurophthalmology, Rome, Italy Unit of Neurorehabilitation, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, ICOT, Latina, Italy
| | - Giorgio Sandrini
- C. Mondino National Neurological Institute, Department of Brain and Behavioral Sciences, University of Pavia, Italy
| | - Francesco Pierelli
- IRCCS Neuromed, Pozzilli, IS, Italy.,Foundation IRCCS, Research Unit of Neurophysiology of Vision and Neurophthalmology, Rome, Italy Unit of Neurorehabilitation, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, ICOT, Latina, Italy
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Ambrosini A, Kisialiou A, Coppola G, Finos L, Magis D, Pierelli F, Schoenen J. Visual and auditory cortical evoked potentials in interictal episodic migraine: An audit on 624 patients from three centres. Cephalalgia 2016; 37:1126-1134. [DOI: 10.1177/0333102416665224] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Background Many studies report a habituation deficit of visual evoked potentials (VEP) and/or increased intensity dependence of auditory evoked cortical potentials (IDAP) in episodic migraine patients between attacks. These findings have a pathophysiological interest, but their diagnostic utility is not known. Aims To perform an audit on a large database of interictal VEP and IDAP recordings in episodic migraine patients and evaluate their diagnostic accuracy. Methods We pooled data for VEP habituation and IDAP measured in 624 episodic migraineurs (EM) and 360 healthy volunteers (HV) from three centers. Thresholds were calculated by Receiver Operating Curve analysis and used to calculate sensitivity, specificity, positive and negative likelihood ratios (LR+ and LR-) and the accuracy of each test, using ICHD diagnostic criteria as the gold standard. Results In EM, VEP habituation was significantly lower than in HV, and IDAP slopes were significantly steeper. VEP (five blocks of 50 responses), VEP (six blocks of 100 responses) and IDAP had respectively 61.0%, 61.4% and 45.7% sensitivity, and 77.9%, 77.9% and 87.2% specificity. Their positive (LR+) and negative (LR-) likelihood ratios were respectively 2.760, 2.778, 3.570 and 0.500, 0.495, 0.623, with diagnostic accuracies of 65.3%, 69.0% and 54.3%. In combined VEP + IDAP recordings, an abnormality of at least one test had 83.4% sensitivity, 66.7% specificity, 2.504 LR+, 0.249 LR− and 81.1% accuracy. Conclusions In this large database, VEP habituation is significantly reduced and IDAP increased in episodic migraine patients between attacks. Taken alone, neither VEP nor IDAP has sufficient diagnostic accuracy. However, when both tests are performed in the same patient, an abnormality of at least one of them is highly predictive of interictal episodic migraine.
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Affiliation(s)
| | - Aliaksei Kisialiou
- Clinical and Molecular Epidemiology Unit, IRCCS San Raffaele Pisana, Rome, Italy
| | - Gianluca Coppola
- Department of Neurophysiology of Vision and Neurophthalmology, GB Bietti Foundation IRCCS, Rome, Italy
| | - Livio Finos
- Department of Developmental Psychology and Socialization, University of Padua, Italy
| | | | - Francesco Pierelli
- Headache Unit, IRCCS Neuromed, Pozzilli, IS, Italy
- Sapienza University of Rome Polo Pontino, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
| | - Jean Schoenen
- Headache Research Unit, University Dept of Neurology, Citadelle Hospital, Liège, Belgium
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Ambrosini A, Coppola G, Iezzi E, Pierelli F, Schoenen J. Reliability and repeatability of testing visual evoked potential habituation in migraine: A blinded case–control study. Cephalalgia 2016; 37:418-422. [DOI: 10.1177/0333102416648656] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Many studies have shown that migraine patients have an interictal habituation deficit of visual evoked potentials (VEPs). Some discordant results were attributed to non-blinded analyses and a lack of repeatability. Aims In this study, we compared blinded and non-blinded analyses of the same recordings and assessed test–retest repeatability. Methods VEP recordings of 25 healthy volunteers (HVs) and 78 episodic migraine patients (EMs; 52 interictal, 26 ictal) were analysed by two investigators, one of whom was blinded to diagnosis and headache phase. Twelve HVs and nine EMs had two recordings for test repeatability. Results In both blinded and non-blinded analyses, VEP habituation was normal in HVs and EMs during an attack, but deficient in EMs interictally. Intra-individual habituation percentages were highly correlated in two recordings separated by ≥7 days. Conclusions The studies showing a VEP habituation deficit in migraineurs between attacks are unlikely to be biased by non-blinding analysis or poor repeatability.
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Affiliation(s)
- Anna Ambrosini
- Headache Unit, IRCCS Neuromed, Pozzilli (Isernia), Italy
| | - Gianluca Coppola
- Department of Neurophysiology of Vision and Neurophthalmology, G.B. Bietti Foundation IRCCS, Rome, Italy
| | - Ennio Iezzi
- Clinical Neurophysiology Unit, IRCCS Neuromed, Pozzilli (Isernia), Italy
| | - Francesco Pierelli
- Headache Unit, IRCCS Neuromed, Pozzilli (Isernia), Italy
- Sapienza University of Rome Polo Pontino, Department of Medico-Surgical Sciences and Biotechnologies, Latina, Italy
| | - Jean Schoenen
- Headache Research Unit, Citadelle Hospital, University of Liège, Belgium
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Ambrosini A. Controversies about the role of the deficit of habituation of evoked potentials in migraine: a disease biomarker? PROS. J Headache Pain 2015; 16:A14. [PMID: 28132374 PMCID: PMC4715102 DOI: 10.1186/1129-2377-16-s1-a14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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