Ariel Levy, Thi Phuoc Yen Tran, Olivier Boucher, Alain Bouthillier, Dang Khoa Nguyen,
Purpose: Operculo-insular seizures are heterogeneous and may resemble seizures originating from the temporal, frontal, or parietal lobe. Although ... invasive EEG recordings are often necessary to detect operculo-insular seizures, electrophysiological features of operculo-insular epilepsies remain poorly characterized. This study describes the EEG findings of patients with operculo-insular epilepsy. Methods: We reviewed electrophysiological data of all patients ( n = 9) with operculo-insular seizures revealed by intracranial EEG and for ...
Tópico(s): Ophthalmology and Eye Disorders
2017 - Lippincott Williams & Wilkins | Journal of Clinical Neurophysiology
Tao Yu, Duanyu Ni, Xiating Zhang, Xueyuan Wang, Liang Qiao, Xiaoxia Zhou, Yuping Wang, Yongjie Li, Guojun Zhang,
... of MEG in the presurgical localisation of the operculo-insular epileptogenic zone in patients with negative magnetic resonance imaging (MRI).Thirteen patients with operculo-insular epilepsy and negative MRI who were identified ... the ictal symptoms looked reliable enough to characterise operculo-insular seizures in four patients. MEG spike sources were shown in the operculo-insular region in 11 of 13 (84.6%) ... five patients. In these patients, electrodes exploring the operculo-insular cortex were not part of the original ...
Tópico(s): Advanced MRI Techniques and Applications
2018 - Elsevier BV | Seizure
Jörn Lötsch, Carmen Walter, Lisa Felden, Ulrike Nöth, Ralf Deichmann, B. Oertel,
... of pain in the brain suggests that the operculo-insular cortex is a crucial part of the ... stimuli, to verify the pain-specificity of the operculo-insular cortex. In detail, brain activations due to ... areas and the insular cortices consistent with the operculo-insular cortex. However, these activations completely disappeared when ... measurable. While the present experiments verify that the operculo-insular cortex plays a role in the processing ... the experimental context, for the interpretation that the operculo-insular cortex splay a major role in the ...
Tópico(s): Pain Management and Placebo Effect
2012 - Public Library of Science | PLoS ONE
Produção Nacional
Revisado por pares
Cristiana Koschnitzke, Marlies Sazima,
... de P. alata por apresentarem filamentos livres no opérculo, que em P. alata é horizontal e denticulado. Estas diferenças no opérculo promovem comportamentos característicos das abelhas durante as visitas. Passiflora suberosa possui flores verde-amareladas e opérculo plicado. As flores são diurnas, inodoras, autocompatíveis e ... P. capsularis as flores são brancas e o opérculo é plicado. As flores são noturnas, perfumadas, autocompatíveis e possivelmente polinizadas por mariposas. O opérculo plicado das duas últimas espécies permite que os ...
Tópico(s): Plant Diversity and Evolution
1997 - Springer Science+Business Media | Revista Brasileira de Botânica
Francesca Fardo, Mikkel C. Vinding, Micah Allen, Troels S. Jensen, Nanna Brix Finnerup,
... and gamma (55-90 Hz) rhythms, originating in operculo-insular cortical regions. We suggest that delta rhythms coordinate functional integration between operculo-insular and frontoparietal regions, while gamma rhythms reflect local sensory processing in operculo-insular areas.NEW & NOTEWORTHY Using magnetoencephalography, we identified ... and high-frequency oscillatory rhythms, both originating in operculo-insular regions. These results support further investigations of ...
Tópico(s): Nonlinear Dynamics and Pattern Formation
2017 - American Physiological Society | Journal of Neurophysiology
Andrej Stančák, Jamaan Alghamdi, Turo Nurmikko,
... cerebellum, posterior cingulate cortex, and left and right operculo-insular cortex. The only component showing statistically significant ... stimulation was the late component of the contralateral operculo-insular source peaking at 1.05 s after ... increases of the late component of the contralateral operculo-insular source dipole correlated with the subjects' numerical ... point to a pivotal role of the contralateral operculo-insular region in processing of C-fibre mediated ...
Tópico(s): Transcranial Magnetic Stimulation Studies
2011 - Public Library of Science | PLoS ONE
Alain Bouthillier, Werner Surbeck, Alexander G. Weil, Tania Tayah, Dang Khoa Nguyen,
... the hidden surfaces of the opercula.The hybrid operculo-insular electrode was fabricated by Ad-Tech Medical ... the hidden surfaces of the opercula.The hybrid operculo-insular electrode was used in 5 patients. This ... insertion of this new electrode.The new hybrid operculo-insular electrode can be used for intracranial investigation ...
Tópico(s): Neonatal and fetal brain pathology
2011 - Lippincott Williams & Wilkins | Neurosurgery
Cédric Lenoir, Maxime Algoet, André Mouraux,
... continuous theta burst stimulation (cTBS) of the right operculo-insular cortex delivered with a double cone coil ... by Aδ-fibre thermonociceptors. The effect of deep operculo-insular cTBS on the perception of Aδ-fibre ... the cTBS pulses. Deep cTBS delivered over the operculo-insular cortex is associated with a risk of ...
Tópico(s): Neural and Behavioral Psychology Studies
2018 - Wiley | The Journal of Physiology
Roland Peyron, Camille Fauchon,
... missing or sub-significant. In other words, the operculo-insular cortex activations are the most robust pain- ... sensations selectively if the electrode was in the operculo-insular cortex. Human models of disease confirmed that ... Finally, unique and focal lesions of the posterior operculo-insular cortices were able to remove (or at ... to impair) thermosensory and nociceptive functions. Thus, the operculo-insular area can be presented as the only ...
Tópico(s): Functional Brain Connectivity Studies
2018 - Elsevier BV | Neuroscience Letters
Elie Bou Assi, Sandy Rihana, Dang Khoa Nguyen, Mohamad Sawan,
... including five who were rendered seizure-free after operculo-insular resection. Effective connectivity analysis of 7 s following electrical onset confirmed an operculo-insular seizure origin in 5 patients with a ... seizure outcome. Findings highlight the feasibility of accurate operculo-insular seizure foci localization based on quantitative approaches.
Tópico(s): Functional Brain Connectivity Studies
2019 - Elsevier BV | Epilepsy Research
Ulf Baumgärtner, Gian Domenico Iannetti, L. Zambreanu, Peter Stoeter, Rolf‐Detlef Treede, Irene Tracey,
... nociceptive modalities. Here we investigated somatotopy in the operculo-insular cortex with noxious heat and pinprick stimuli ... of multiple somatotopic representations for pain within the operculo-insular region in humans, possibly reflecting its importance ...
Tópico(s): Pain Management and Placebo Effect
2010 - American Physiological Society | Journal of Neurophysiology
Roland Peyron, Isabelle Faillenot,
... with laser showing a consistent response in the operculo-insular area which amplitude correlates with pain intensity. ... and inconsistent responses have been found outside the operculo-insular cortices. With electrical stimulation delivered directly in ... sensation. Thus, over the last 15 years, the operculo-insular cortex has been re-discovered as a ...
Tópico(s): Pain Mechanisms and Treatments
2011 - EDP Sciences | médecine/sciences
José Rebola, João Castelhano, Carlos Ferreira, Miguel Castelo‐Branco,
... This strategy allowed for the functional dissection of operculo-insular networks into task related complexes such as ... integration based on holistic rules requires a distributed operculo-insular network.
Tópico(s): Functional Brain Connectivity Studies
2012 - Elsevier BV | Neuropsychologia
Laure Mazzola, Isabelle Faillenot, Fabrice-Guy Barral, François Mauguı̀ere, Roland Peyron,
The role of operculo-insular region in the processing of somato-sensory inputs, painful or not, is now well established. However, available maps ... anatomically contiguous, is not easy, explaining why the "operculo-insular" label has been introduced to describe activations ...
Tópico(s): Pain Management and Placebo Effect
2012 - Elsevier BV | NeuroImage
Ulf Baumgärtner, Hans‐Georg Buchholz, Alexander Bellosevich, Walter Magerl, Thomas Siessmeier, Roman Rolke, S. Höhnemann, Markus Piel, Frank Rösch, Hans‐Jürgen Wester, Gjermund Henriksen, Peter Stoeter, Peter Bartenstein, Rolf‐Detlef Treede, Mathias Schreckenberger,
... higher BP than MCC (0.86). In the operculo-insular region, we found high BPs in all ... BP revealed four factors (95% explained variance): (1) operculo-insular areas, ACC, MCC and putamen, (2) amygdala ... by ACC and MCC, but also by the operculo-insular cortex, if it can be assumed that ...
Tópico(s): Pain Management and Placebo Effect
2005 - Elsevier BV | NeuroImage
Dina Lelic, Søren Schou Olesen, Tine Maria Hansen, Massimiliano Valeriani, Asbjørn Mohr Drewes,
... brain source analysis revealed abnormalities in the cingulate/operculo‐insular network. A posterior shift of the operculo‐insular source ( p = 0.004) and an anterior ... of the cingulate source ( p = 0.01). The operculo‐insular shift was positively correlated with the severity ...
Tópico(s): Myofascial pain diagnosis and treatment
2014 - Wiley | European Journal of Pain
Alexandra Montavont, François Mauguı̀ere, Laure Mazzola, L. García‐Larrea, Hélène Catenoix, Philippe Ryvlin, Jean Isnard,
... primary somatosensory cortex (SI area) or in the operculo-insular cortex.We analyzed ictal recordings and data from stimulation using intracerebral electrodes exploring the operculo-insular cortex (including secondary somatosensory [SII] region), SI ... data strongly suggest that PSS originate in the operculo-insular cortex and not in the SI area ...
Tópico(s): Sleep and Wakefulness Research
2015 - Lippincott Williams & Wilkins | Neurology
Maud Frot, François Mauguı̀ere,
... des messages nociceptifs par voie transcalleuse. Le cortex operculo-insulaire connecté avec le thalamus postérieur peut être ... fibers coming from the opposite SII area. The operculo-insular cortex contralateral to stimulation, activated through direct ...
Tópico(s): Pain Management and Placebo Effect
1999 - Elsevier BV | Neurophysiologie Clinique
Cédric Lenoir, Maxime Algoet, Camille Vanderclausen, André Peeters, Susana Ferrão Santos, André Mouraux,
... continuous theta burst stimulation (cTBS) over the right operculo-insular cortex. Combined with psychophysics performed before and ... procedure was to test whether modulation of the operculo-insular cortex affects the perception of thermal, nociceptive ...
Tópico(s): Motor Control and Adaptation
2018 - Elsevier BV | Brain stimulation
Koichi Hagiwara, Jean Isnard, Roland Peyron, L. García‐Larrea,
... deep continuous theta burst stimulation of the right operculo-insular cortex. Brain Stimul. 2018; 11: 1187-1188https:// ... theta burst stimulation. They targeted the dorsal-posterior operculo-insular cortex in order to modulate somatosensory sensations ... with a primary seizure origin in the posterior operculo-insular cortex. Clinically, this manifestation is commonly called " ... more than 300 stimulus sites in the posterior operculo-insular region [ [6] Mazzola L. Mauguière F. Isnard ... deep continuous theta burst stimulation of the right operculo-insular cortex. Brain Stimul. 2018; 11: 1187-1188https:// ...
Tópico(s): Functional Brain Connectivity Studies
2018 - Elsevier BV | Brain stimulation
Sami Obaïd, Alan Tucholka, Jimmy Ghaziri, Pierre‐Marc Jodoin, Félix C. Morency, Maxime Descoteaux, Alain Bouthillier, Dang Khoa Nguyen,
... lobe such as thinning of fronto-central cortices. Operculo-insular epilepsy (OIE) is an under-recognized and ... Our results reveal structural anomalies extending beyond the operculo-insular area in OIE.
Tópico(s): Neuroscience and Neuropharmacology Research
2018 - Elsevier BV | NeuroImage Clinical
Samuel Zamora, Eladio Liñán, José Antonio Gámez Vintaned, Patricio Domínguez Alonso, Rodolfo Gozalo,
... abierta. Ademas, se realiza una interpretacion funcional del operculo y se analiza el significado evolutivo de algunas ... en el numero de placas postoperculares ancladas al operculo, la reduccion de la faceta postopercular, el desarrollo ... podrian estar relacionados con una mayor movilidad del operculo. Todas estas caracteristicas permitirian una mayor eficacia en ... para la estructura que sirve de articulacion del operculo con las placas postoperculares. Abstract. A NEW CARPOID ( ...
Tópico(s): Pleistocene-Era Hominins and Archaeology
2007 - Asociación Paleontológica Argentina | Ameghiniana
Produção Nacional
Revisado por pares
... and thus both are jointly characterized as the operculo-insular cortex. The operculo-insular cortex is an integrative structure that detects ... nociceptive inputs (Mazzola et al. 2012). Importantly, the operculo-insular cortex seems to be an epileptic focus ... Mauguière, 2018). The functional characterization of the human operculo-insular cortex relies on electrophysiological recordings, intraoperative stimulation, ... Mauguière, 2018). Notwithstanding, the specific functional role of operculo-insular cortex neuronal populations in the processing of ...
Tópico(s): Psychosomatic Disorders and Their Treatments
2018 - Wiley | The Journal of Physiology
Eveline Du Bois-Reymond Marcus,
... O genero, sem area parietal (columelar) e com operculo, externo em parva, interno em panqueca, reune caracteres ... aparelho feminino mais com o das ultimas. O operculo interno da nova especie sugere a possibilidade de ...
Tópico(s): Ichthyology and Marine Biology
1956 - SciELO | Boletim do Instituto Oceanográfico
Produção Nacional
Revisado por pares
Teresa Cristina Monte Gonçalves, José Jurberg, Jane Costa, Wanderley de Souza,
... ovos em MO apresentam a superfície exocorial do opérculo e do corpo dividida em áreas poligonais com ... tem áreas indefinidas. Em MEV o exocório dos opérculos apresenta áreas poligonais de superfície estofada com pequena ...
Tópico(s): Trypanosoma species research and implications
1985 - Instituto Oswaldo Cruz, Ministério da Saúde | Memórias do Instituto Oswaldo Cruz
Produção Nacional
Revisado por pares
José Jurberg, Teresa Cristina Monte Gonçalves, Jane Costa, Wanderley de Souza,
... corpo possui polígonos maiores do que os do opérculo, porém ambos são lisos. Em microscopia eletrõnica de varredura (MEV) o exocório do opérculo apresenta áreas poligonais de superfície estofada em pequenos ...
Tópico(s): Magnetic and Electromagnetic Effects
1986 - Instituto Oswaldo Cruz, Ministério da Saúde | Memórias do Instituto Oswaldo Cruz
Maud Frot, François Mauguı̀ere,
... defined two cortical areas of activation in the operculo-insular cortex in response to a painful laser ...
Tópico(s): Anesthesia and Pain Management
2003 - Oxford University Press | Brain
L. García‐Larrea, C. Perchet, C. Créac’h, Philippe Convers, Roland Peyron, B. Laurent, François Mauguı̀ere, M. Magnin,
... to describe it, and we propose parasylvian or operculo-insular pain as appropriate labels. Parasylvian pain may ...
Tópico(s): Botulinum Toxin and Related Neurological Disorders
2010 - Oxford University Press | Brain
Produção Nacional
Revisado por pares
Michaele Alvim Milward‐de-Azevedo, Fabiana Carvalho de Souza, José Fernando A. Baumgratz, Vania Gonçalves‐Esteves,
... ou 6 mesocolpos, e presença ou ausência de opérculos, pseudopérculos e opérculos secundários, exina microrreticulada em P. truncata e heterorreticulada ...
Tópico(s): Plant and Fungal Species Descriptions
2010 - Sociedade Botânica do Brasil | Acta Botanica Brasilica
Andrej Stančák, J. R. Johnstone, Nicholas Fallon,
... at 141 ms and generated in the contralateral operculo-insular cortex, was larger during HMRE than NMRE ... effects of motor readiness and nociceptive processing in operculo-insular cortex. Subjective pain intensity appears to be ...
Tópico(s): Pain Mechanisms and Treatments
2011 - Elsevier BV | Behavioural Brain Research