Clinical Neurophysiology最新文献

Shapes of direct cortical responses vs. short-range axono-cortical evoked potentials: The effects of direct electrical stimulation applied to the human brain. 皮层直接反应与短程轴突皮层诱发电位的形状：直接电刺激对人脑的影响。

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2025-01-01 Epub Date: 2024-11-08 DOI: 10.1016/j.clinph.2024.10.016

Clotilde Turpin, Olivier Rossel, Félix Schlosser-Perrin, Sam Ng, Riki Matsumoto, Emmanuel Mandonnet, Hugues Duffau, François Bonnetblanc

{"title":"Shapes of direct cortical responses vs. short-range axono-cortical evoked potentials: The effects of direct electrical stimulation applied to the human brain.","authors":"Clotilde Turpin, Olivier Rossel, Félix Schlosser-Perrin, Sam Ng, Riki Matsumoto, Emmanuel Mandonnet, Hugues Duffau, François Bonnetblanc","doi":"10.1016/j.clinph.2024.10.016","DOIUrl":"10.1016/j.clinph.2024.10.016","url":null,"abstract":"Objective: Direct cortical responses (DCR) and axono-cortical evoked potentials (ACEP) are generated by electrically stimulating the cortex either directly or indirectly through white matter pathways, potentially leading to different electrogenic processes. For ACEP, the slow conduction velocity of axons (median ≈ 4 m.s-1) is anticipated to induce a delay. For DCR, direct electrical stimulation (DES) of the cortex is expected to elicit additional cortical activity involving smaller and slower non-myelinated axons. We tried to validate these hypotheses.Methods: DES was administered either directly on the cortex or to white matter fascicles within the resection cavity, while recording DCR or ACEP at the cortical level in nine patients.Results: Short but significant delays (≈ 2 ms) were measurable for ACEP immediately following the initial component (≈ 7 ms). Subsequent activities (≈ 40 ms) exhibited notable differences between DCR and ACEP, suggesting the presence of additional cortical activities for DCR.Conclusion: Distinctions between ACEPs and DCRs can be made based on a delay at the onset of early components and the dissimilarity in the shape of the later components (>40 ms after the DES artifact).Significance: The comparison of different types of evoked potentials allows to better understand the effects of DES.","PeriodicalId":10671,"journal":{"name":"Clinical Neurophysiology","volume":" ","pages":"91-99"},"PeriodicalIF":3.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards a shared electrogenesis mechanism in direct cortical responses, axono-cortical evoked potentials, and cortico-cortical evoked potentials. 在皮层直接反应、轴突-皮层诱发电位和皮层-皮层诱发电位中建立共同的电生成机制

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2025-01-01 Epub Date: 2024-11-22 DOI: 10.1016/j.clinph.2024.11.006

Davide Giampiccolo

引用次数: 0

Unraveling prefrontal cortical inhibitory dynamics: A novel approach to investigate GABAergic function with TMS-EEG.

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2025-01-01 Epub Date: 2024-11-30 DOI: 10.1016/j.clinph.2024.11.016

Fabio Ferrarelli

引用次数: 0

Influences of speaking task demands on sensorimotor oscillations in adults who stutter: Implications for speech motor control. 说话任务要求对口吃成人感觉运动振荡的影响：对言语运动控制的影响

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2025-01-01 Epub Date: 2024-11-10 DOI: 10.1016/j.clinph.2024.10.017

Edward C Brown, Andrew Bowers, M Blake Rafferty, Devin M Casenhiser, Kevin Reilly, Ashley Harkrider, Tim Saltuklaroglu

{"title":"Influences of speaking task demands on sensorimotor oscillations in adults who stutter: Implications for speech motor control.","authors":"Edward C Brown, Andrew Bowers, M Blake Rafferty, Devin M Casenhiser, Kevin Reilly, Ashley Harkrider, Tim Saltuklaroglu","doi":"10.1016/j.clinph.2024.10.017","DOIUrl":"10.1016/j.clinph.2024.10.017","url":null,"abstract":"Objective: Motivated by previous inconsistent findings, this study aims to improve understanding of sensorimotor beta (β; 15-30 Hz) and alpha (α; 8-14 Hz) speech-related power differences between stuttering and non-stuttering adults.Methods: Electroencephalography was recorded as adults who stutter (AWS) and matched fluent controls answered questions in Quiet and Informational Masked backgrounds. Bilateral sensorimotor β and α power during speech planning and execution were measured from mu (μ) rhythm components.Results: Compared to controls, AWS exhibited reduced left hemisphere β and α power in both speaking conditions during speech planning and execution. AWS displayed reduced left α power in the Informational Masking compared to Quiet. Within AWS β and α power, which were tightly coupled, oppositely predicted stuttering severity and β-α dissociation (β minus α) was the strongest predictor.Conclusion: Neither β nor α power are reliable markers of speech motor stability due to their sensitivity to speech task automaticity. However, relationships between these two sensorimotor rhythms warrant further investigation for understanding motor control.Significance: Data help explain previous mixed findings in reference to extant models of speech motor control in stuttering and may have clinical implications for developing neurostimulation protocols targeting improved speech fluency.","PeriodicalId":10671,"journal":{"name":"Clinical Neurophysiology","volume":" ","pages":"76-88"},"PeriodicalIF":3.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142695404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unraveling the neurophysiological intricacies of stuttering through sensorimotor oscillations. 通过感觉运动振荡揭示口吃的神经生理学奥秘

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2025-01-01 Epub Date: 2024-11-19 DOI: 10.1016/j.clinph.2024.11.005

Ryouhei Ishii, Masaya Ueda

引用次数: 0

Optimizing the identification of long-interval intracortical inhibition from the dorsolateral prefrontal cortex. 优化背外侧前额叶皮层对长间隔皮层内抑制的识别。

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2025-01-01 Epub Date: 2024-11-16 DOI: 10.1016/j.clinph.2024.10.018

Mayuko Takano, Masataka Wada, Shinichiro Nakajima, Keita Taniguchi, Shiori Honda, Yu Mimura, Ryosuke Kitahata, Reza Zomorrodi, Daniel M Blumberger, Zafiris J Daskalakis, Hiroyuki Uchida, Masaru Mimura, Yoshihiro Noda

{"title":"Optimizing the identification of long-interval intracortical inhibition from the dorsolateral prefrontal cortex.","authors":"Mayuko Takano, Masataka Wada, Shinichiro Nakajima, Keita Taniguchi, Shiori Honda, Yu Mimura, Ryosuke Kitahata, Reza Zomorrodi, Daniel M Blumberger, Zafiris J Daskalakis, Hiroyuki Uchida, Masaru Mimura, Yoshihiro Noda","doi":"10.1016/j.clinph.2024.10.018","DOIUrl":"10.1016/j.clinph.2024.10.018","url":null,"abstract":"Objective: This study aimed to optimally evaluate the effect of the long-interval intracortical inhibition (LICI) in the dorsolateral prefrontal cortex (DLPFC) through transcranial magnetic stimulation combined with electroencephalography (TMS-EEG) by eliminating the volume conductance with signal source estimation and using a realistic sham coil as a control.Methods: We compared the LICI effects from the DLPFC between the active and sham stimulation conditions in 27 healthy participants. Evoked responses between the two conditions were evaluated at the sensor and source levels.Results: At the sensor level, a significant LICI effect was confirmed in the active condition in the global mean field power analysis; however, in the local mean field power analysis focused on the DLPFC, no LICI effect was observed in the active condition. However, in the signal source estimation analysis for the DLPFC, we could reconfirm a significant LICI effect (p = 0.023) in the interval 30-250 ms post-stimulus, compared to the sham condition.Conclusions: Our results demonstrate that application of realistic sham stimulation condition and source estimation method allows for a robust and optimal identification of the LICI effect in the DLPFC.Significance: The optimal DLPFC-LICI effect was identified by the use of the sophisticated sham coil.","PeriodicalId":10671,"journal":{"name":"Clinical Neurophysiology","volume":" ","pages":"102-113"},"PeriodicalIF":3.7,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

1924-2024: First centennial of EEG.

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2024-12-19 DOI: 10.1016/j.clinph.2024.11.021

Paolo M Rossini, Jonathan Cole, Walter Paulus, Ulf Ziemann, Robert Chen

引用次数: 0

Spectrum disorder of RFC1 expansions/CANVAS: Clinical and electrophysiological characterization of a group of 31 patients.

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2024-12-19 DOI: 10.1016/j.clinph.2024.12.007

Elena Lainez, Daniel Sánchez-Tejerina, Paula Fernández Alvarez, Margarida Gratacòs-Viñola, José Luis Seoane, Daniela Isabel Santa-Cruz, Lena Verdaguer, Raúl Juntas, Arnau Llauradó, Javier Sotoca, Maria Salvado, Elena García Arumi, Núria Raguer

{"title":"Spectrum disorder of RFC1 expansions/CANVAS: Clinical and electrophysiological characterization of a group of 31 patients.","authors":"Elena Lainez, Daniel Sánchez-Tejerina, Paula Fernández Alvarez, Margarida Gratacòs-Viñola, José Luis Seoane, Daniela Isabel Santa-Cruz, Lena Verdaguer, Raúl Juntas, Arnau Llauradó, Javier Sotoca, Maria Salvado, Elena García Arumi, Núria Raguer","doi":"10.1016/j.clinph.2024.12.007","DOIUrl":"https://doi.org/10.1016/j.clinph.2024.12.007","url":null,"abstract":"Introduction/objective: Biallelic expansion of the pentanucleotide AAGGG in the RFC1- gene is associated with cerebellar ataxia, neuropathy, and vestibular areflexia syndrome (CANVAS). This study aimed to comprehensively characterise this condition by conducting an in-depth neurophysiological examination of afflicted patients.Methods: A retrospective analysis was conducted in 31 RFC1-positive patients. Assessment included clinical examination and electrodiagnostic tests: nerve conduction studies, F waves, needle electromyography, H, blink and masseter reflexes; Autonomic Nervous System (ANS): Heart Rate Variability, Sympathetic Skin Response and Electrochemical Skin Conductance, and Quantitative Sensory Test (QST). Medullar tracts were assessed using Somatosensory Evoked Potentials (SEPs) and Transcranial Magnetic Stimulation.Results: All patients exhibited moderate to severe sensory axonal neuropathy/neuronopathy, whereas motor nerve conduction parameters and the pyramidal pathway showed no abnormalities. Tibial nerve SEPs were absent or severely attenuated in all patients, and were moderately affected by the median nerve. H-reflexes were preserved in 85.7% and blink reflex in 60% of tested patients. ANS tests yielded predominantly normal results, although 74% demonstrated impaired QST.Conclusions: Our findings highlight the characteristic features of sensory neuropathy/neuronopathy and severe somatosensory deficits, with predominantly preserved H-reflexes and motor sparing. Thermoalgesic fibres are frequently involved, whereas the ANS is relatively preserved.Significance: Neurophysiological examinations can objectively characterize the spectrum of RFC1-related disease.","PeriodicalId":10671,"journal":{"name":"Clinical Neurophysiology","volume":"170 ","pages":"136-144"},"PeriodicalIF":3.7,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142892622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Consensus review and considerations on TMS to treat depression: A comprehensive update endorsed by the National Network of Depression Centers, the Clinical TMS Society, and the International Federation of Clinical Neurophysiology.

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2024-12-19 DOI: 10.1016/j.clinph.2024.12.015

Nicholas T Trapp, Anthony Purgianto, Joseph J Taylor, Manpreet K Singh, Lindsay M Oberman, Brian J Mickey, Nagy A Youssef, Daniela Solzbacher, Benjamin Zebley, Laura Y Cabrera, Susan Conroy, Mario Cristancho, Jackson R Richards, Michael J Flood, Tracy Barbour, Daniel M Blumberger, Stephan F Taylor, David Feifel, Irving M Reti, Shawn M McClintock, Sarah H Lisanby, Mustafa M Husain

{"title":"Consensus review and considerations on TMS to treat depression: A comprehensive update endorsed by the National Network of Depression Centers, the Clinical TMS Society, and the International Federation of Clinical Neurophysiology.","authors":"Nicholas T Trapp, Anthony Purgianto, Joseph J Taylor, Manpreet K Singh, Lindsay M Oberman, Brian J Mickey, Nagy A Youssef, Daniela Solzbacher, Benjamin Zebley, Laura Y Cabrera, Susan Conroy, Mario Cristancho, Jackson R Richards, Michael J Flood, Tracy Barbour, Daniel M Blumberger, Stephan F Taylor, David Feifel, Irving M Reti, Shawn M McClintock, Sarah H Lisanby, Mustafa M Husain","doi":"10.1016/j.clinph.2024.12.015","DOIUrl":"https://doi.org/10.1016/j.clinph.2024.12.015","url":null,"abstract":"This article updates the prior 2018 consensus statement by the National Network of Depression Centers (NNDC) on the use of transcranial magnetic stimulation (TMS) in the treatment of depression, incorporating recent research and clinical developments. Publications on TMS and depression between September 2016 and April 2024 were identified using methods informed by PRISMA guidelines. The NNDC Neuromodulation Work Group met monthly between October 2022 and April 2024 to define important clinical topics and review pertinent literature. A modified Delphi method was used to achieve consensus. 2,396 abstracts and manuscripts met inclusion criteria for review. The work group generated consensus statements which include an updated narrative review of TMS safety, efficacy, and clinical features of use for depression. Considerations related to training, roles/responsibilities of providers, and documentation are also discussed. TMS continues to demonstrate broad evidence for safety and efficacy in treating depression. Newer forms of TMS are faster and potentially more effective than conventional repetitive TMS. Further exploration of targeting methods, use in special populations, and accelerated protocols is encouraged. This article provides an updated overview of topics relevant to the administration of TMS for depression and summarizes expert, consensus opinion on the practice of TMS in the United States.","PeriodicalId":10671,"journal":{"name":"Clinical Neurophysiology","volume":"170 ","pages":"206-233"},"PeriodicalIF":3.7,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142930750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comment on "Tonic stretch reflex threshold as a measure of disordered motor control and spasticity - A critical review" by Levin et al. (2024).

IF 3.7 3区医学

Clinical Neurophysiology Pub Date : 2024-12-17 DOI: 10.1016/j.clinph.2024.12.016

John W Chow, Stuart A Yablon, Dobrivoje S Stokic

引用次数: 0