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Journal articles on the topic 'Operculo-insular cortex'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Bouthillier, Alain, Werner Surbeck, Alexander G. Weil, Tania Tayah, and Dang K. Nguyen. "The Hybrid Operculo-Insular Electrode." Neurosurgery 70, no. 6 (December 19, 2011): 1574–80. http://dx.doi.org/10.1227/neu.0b013e318246a3b7.

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Abstract BACKGROUND: Precise localization of an epileptic focus in the perisylvian/insular area is a major challenge. The difficult access and the high density of blood vessels within the sylvian fissure have lead to poor coverage of intrasylvian (opercular and insular) cortex by available electrodes. OBJECTIVE: To report the creation of a novel electrode designed to record epileptic activity from both the insular cortex and the hidden surfaces of the opercula. METHODS: The hybrid operculo-insular electrode was fabricated by Ad-Tech Medical Instrument Corporation (Racine, Wisconsin). It was used in combination with regular subdural and depth electrodes for long-term intracranial recordings. The hybrid electrode, which contains both a depth and a strip (opercular) component, is inserted after microsurgical opening of the sylvian fissure. The depth component is implanted directly into the insular cortex. The opercular component has 1 or 2 double-sided recording contacts that face the hidden surfaces of the opercula. RESULTS: The hybrid operculo-insular electrode was used in 5 patients. This method of invasive investigation allowed including (2 patients) or excluding (3 patients) the insula as part of the epileptic focus and the surgical resection. It also allowed extending the epileptogenic zone to include the hidden surface of the frontal operculum in 1 patient. There were no complications related to the insertion of this new electrode. CONCLUSION: The new hybrid operculo-insular electrode can be used for intracranial investigation of perisylvian/insular refractory epilepsy. It can contribute to increasing cortical coverage of this complex region and may allow better definition of the epileptic focus.

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2

Fardo, Francesca, Mikkel C. Vinding, Micah Allen, Troels Staehelin Jensen, and Nanna Brix Finnerup. "Delta and gamma oscillations in operculo-insular cortex underlie innocuous cold thermosensation." Journal of Neurophysiology 117, no. 5 (May 1, 2017): 1959–68. http://dx.doi.org/10.1152/jn.00843.2016.

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Cold-sensitive and nociceptive neural pathways interact to shape the quality and intensity of thermal and pain perception. Yet the central processing of cold thermosensation in the human brain has not been extensively studied. Here, we used magnetoencephalography and EEG in healthy volunteers to investigate the time course (evoked fields and potentials) and oscillatory activity associated with the perception of cold temperature changes. Nonnoxious cold stimuli consisting of Δ3°C and Δ5°C decrements from an adapting temperature of 35°C were delivered on the dorsum of the left hand via a contact thermode. Cold-evoked fields peaked at around 240 and 500 ms, at peak latencies similar to the N1 and P2 cold-evoked potentials. Importantly, cold-related changes in oscillatory power indicated that innocuous thermosensation is mediated by oscillatory activity in the range of delta (1–4 Hz) 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 spatiotemporal features of central cold processing, with respect to the time course, oscillatory profile, and neural generators of cold-evoked responses in healthy human volunteers. Cold thermosensation was associated with low- and high-frequency oscillatory rhythms, both originating in operculo-insular regions. These results support further investigations of central cold processing using magnetoencephalography or EEG and the clinical utility of cold-evoked potentials for neurophysiological assessment of cold-related small-fiber function and damage.

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3

Frot, M. "Dual representation of pain in the operculo-insular cortex in humans." Brain 126, no. 2 (February 1, 2003): 438–50. http://dx.doi.org/10.1093/brain/awg032.

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4

Zugaib, João, and Victor Hugo Souza. "Transcranial magnetic stimulation for neuromodulation of the operculo‐insular cortex in humans." Journal of Physiology 597, no. 3 (January 9, 2019): 677–78. http://dx.doi.org/10.1113/jp277415.

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5

Vuddagiri, S., L. Bello-Espinosa, S. Singh, S. Wiebe, Y. Agha-khani, S. Yves, and H. Walter. "B.03 Safety and effectiveness of insular resections for drug-resistant epilepsy." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 44, S2 (June 2017): S11. http://dx.doi.org/10.1017/cjn.2017.74.

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Background: Insular cortex involvement as a part of epileptogenic zone is often suspected in the context of operculo-insular semiology and can be confirmed by routine interrogation of the insula with stereo-electroencephalography (SEEG). However the safety and efficacy of insular resections remains unclear. Methods: We reviewed all the patients who underwent insular resection for drug-resistant epilepsy, from 2002 – 2016, in the Calgary Epilepsy Program. Details of the comprehensive pre-surgical evaluation, surgery performed, complications and seizure outcome at the latest follow-up were collected. Results: Fifteen patients (8 males, 7 females) with age range 3 – 41 years were identified. MRI was normal in 9 patients. The decision to resect the Insula was made based on clinical semiology and structural and functional imaging in 6 patients and on SEEG findings in 9 patients. Insular resection was total in 11 and partial in 4 patients. Four (26%) patients had transient hemiparesis and 1 patient had permanent mild upper extremity weakness following total resection. After a mean follow-up period of 45.6 months (range 2 – 150 months), 40% of the patients are seizure free. Conclusions: Insular cortex resections for drug resistant epilepsy can be performed safely and may contribute to additional effectiveness in seizure outcomes in patients with challenging extra-temporal epilepsy.

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6

zu Eulenburg, P., U. Baumgärtner, R. D. Treede, and M. Dieterich. "Interoceptive and multimodal functions of the operculo-insular cortex: Tactile, nociceptive and vestibular representations." NeuroImage 83 (December 2013): 75–86. http://dx.doi.org/10.1016/j.neuroimage.2013.06.057.

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7

Mazzola, Laure, Isabelle Faillenot, Fabrice-Guy Barral, François Mauguière, and Roland Peyron. "Spatial segregation of somato-sensory and pain activations in the human operculo-insular cortex." NeuroImage 60, no. 1 (March 2012): 409–18. http://dx.doi.org/10.1016/j.neuroimage.2011.12.072.

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8

Rebola, José, João Castelhano, Carlos Ferreira, and Miguel Castelo-Branco. "Functional parcellation of the operculo-insular cortex in perceptual decision making: An fMRI study." Neuropsychologia 50, no. 14 (December 2012): 3693–701. http://dx.doi.org/10.1016/j.neuropsychologia.2012.06.020.

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9

Baumgärtner, Ulf, Gian Domenico Iannetti, Laura Zambreanu, Peter Stoeter, Rolf-Detlef Treede, and Irene Tracey. "Multiple Somatotopic Representations of Heat and Mechanical Pain in the Operculo-Insular Cortex: A High-Resolution fMRI Study." Journal of Neurophysiology 104, no. 5 (November 2010): 2863–72. http://dx.doi.org/10.1152/jn.00253.2010.

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Whereas studies of somatotopic representation of touch have been useful to distinguish multiple somatosensory areas within primary (SI) and secondary (SII) somatosensory cortex regions, no such analysis exists for the representation of pain across nociceptive modalities. Here we investigated somatotopy in the operculo-insular cortex with noxious heat and pinprick stimuli in 11 healthy subjects using high-resolution (2 × 2 × 4 mm) 3T functional magnetic resonance imaging (fMRI). Heat stimuli (delivered using a laser) and pinprick stimuli (delivered using a punctate probe) were directed to the dorsum of the right hand and foot in a balanced design. Locations of the peak fMRI responses were compared between stimulation sites (hand vs. foot) and modalities (heat vs. pinprick) within four bilateral regions of interest: anterior and posterior insula and frontal and parietal operculum. Importantly, all analyses were performed on individual, non-normalized fMRI images. For heat stimuli, we found hand-foot somatotopy in the contralateral anterior and posterior insula [hand, 9 ± 10 (SD) mm anterior to foot, P < 0.05] and in the contralateral parietal operculum (SII; hand, 7 ±10 mm lateral to foot, P < 0.05). For pinprick stimuli, we also found somatotopy in the contralateral posterior insula (hand, 9 ±10 mm anterior to foot, P < 0.05). Furthermore, the response to heat stimulation of the hand was 11 ± 12 mm anterior to the response to pinprick stimulation of the hand in the contralateral (left) anterior insula ( P < 0.05). These results indicate the existence of multiple somatotopic representations for pain within the operculo-insular region in humans, possibly reflecting its importance as a sensory-integration site that directs emotional responses and behavior appropriately depending on the body site being injured.

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10

Picart, Thiébaud, and Hugues Duffau. "Awake resection of a left operculo-insular low-grade glioma guided by cortico-subcortical mapping." Neurosurgical Focus 45, VideoSuppl2 (October 2018): V1. http://dx.doi.org/10.3171/2018.10.focusvid.17757.

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A 30-year-old right-handed female medical doctor experienced generalized seizures. MRI showed a left operculo-insular low-grade glioma. Awake resection was proposed. During the cortical mapping, counting and naming task combined with right upper limb movement enabled the identification of the ventral premotor cortex and negative motors areas. The so-called Broca’s area was not eloquent. Subpial dissection was performed by avoiding coagulation until the inferior fronto-occipital fasciculus and the junction between the output projection fibers and the anterior part of the superior longitudinal fasciculus III were reached. The patient resumed a normal familial and socio-professional life despite the resection of Broca’s area.The video can be found here: https://youtu.be/OALk0tvctQw.

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11

Lenoir, Cédric, Maxime Algoet, and André Mouraux. "Deep continuous theta burst stimulation of the operculo-insular cortex selectively affects Aδ-fibre heat pain." Journal of Physiology 596, no. 19 (September 4, 2018): 4767–87. http://dx.doi.org/10.1113/jp276359.

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12

Hodkinson, Duncan J., Andreas Bungert, Richard Bowtell, Stephen R. Jackson, and JeYoung Jung. "Operculo-insular and anterior cingulate plasticity induced by transcranial magnetic stimulation in the human motor cortex: a dynamic casual modeling study." Journal of Neurophysiology 125, no. 4 (April 1, 2021): 1180–90. http://dx.doi.org/10.1152/jn.00670.2020.

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Transcranial magnetic stimulation of the primary motor cortex (M1) is a promising treatment for chronic pain, but its mechanism of action remains unclear. Competing dynamic causal models of effective connectivity between M1 and medial and lateral pain systems suggest direct input into the insular, anterior cingulate cortex, and parietal operculum. This supports the hypothesis that analgesia produced from M1 stimulation most likely acts through the activation of top-down processes associated with intracortical modulation.

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13

Baucaud, J., J. Talairach, C. Munari, T. Giallonardo, and P. Brunet. "Introduction à l'Etude Clinique des Crises Epileptiques Rétrorolandiques." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 18, S4 (November 1991): 566–69. http://dx.doi.org/10.1017/s0317167100032716.

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ABSTRACT:An introduction to the clinical study of postrolandic epileptic seizures. We reviewed, in 145 epilectics studied with SEEG, 800 clinical and electrographic seizures originating from the post-rolandic areas (590 spontaneous Sz and 260 induced by stimulation). The intra-cranial electrodes were implanted using a technique described by Talairach et al. (1974). Seizure onsets were recorded in the centro-parietal region (64 patients) in the partietal49 and in the occipital region.15 Additionally in 15 patients, mixed Sz onset were recorded. One hundred and eight (108) patients underwent surgical removal of their epileptic focus. (69 on the right, 39 on left.) 65% were cured (Sz free or occas Sz, f/up 3 years). The main ictal cal features are discussed. Emphasis is placed on the role of the operculo-insular cortex in the functional organization in man, based on Sz arising from the supra-temporal (fronto-pariental) cortex. The study of the pattern of onset and spread of seizures originating in the post-rolandic areas and of their clinical correlates allow a topographic differential diagnosis.

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14

Lötsch, Jörn, Carmen Walter, Lisa Felden, Ulrike Nöth, Ralf Deichmann, and Bruno G. Oertel. "The Human Operculo-Insular Cortex Is Pain-Preferentially but Not Pain-Exclusively Activated by Trigeminal and Olfactory Stimuli." PLoS ONE 7, no. 4 (April 5, 2012): e34798. http://dx.doi.org/10.1371/journal.pone.0034798.

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15

Bradley, C., P. Moreau, C. Perchet, T. Lelekov-Boissard, J. Isnard, and L. Garcia-Larrea. "ID 225 – Stimulating the operculo-insular cortex for pain modulation: Crossed evidence from tDCS and intra-cranial stimulation." Clinical Neurophysiology 127, no. 3 (March 2016): e99. http://dx.doi.org/10.1016/j.clinph.2015.11.334.

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16

Wright, Hazel, Xiaoyun Li, Nicholas B. Fallon, Timo Giesbrecht, Anna Thomas, Joanne A. Harrold, Jason C. G. Halford, and Andrej Stancak. "Heightened eating drive and visual food stimuli attenuate central nociceptive processing." Journal of Neurophysiology 113, no. 5 (March 1, 2015): 1323–33. http://dx.doi.org/10.1152/jn.00504.2014.

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Hunger and pain are basic drives that compete for a behavioral response when experienced together. To investigate the cortical processes underlying hunger-pain interactions, we manipulated participants' hunger and presented photographs of appetizing food or inedible objects in combination with painful laser stimuli. Fourteen healthy participants completed two EEG sessions: one after an overnight fast, the other following a large breakfast. Spatio-temporal patterns of cortical activation underlying the hunger-pain competition were explored with 128-channel EEG recordings and source dipole analysis of laser-evoked potentials (LEPs). We found that initial pain ratings were temporarily reduced when participants were hungry compared with fed. Source activity in parahippocampal gyrus was weaker when participants were hungry, and activations of operculo-insular cortex, anterior cingulate cortex, parahippocampal gyrus, and cerebellum were smaller in the context of appetitive food photographs than in that of inedible object photographs. Cortical processing of noxious stimuli in pain-related brain structures is reduced and pain temporarily attenuated when people are hungry or passively viewing food photographs, suggesting a possible interaction between the opposing motivational forces of the eating drive and pain.

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17

Ito, Shin-ichi, and Hisashi Ogawa. "Cytochrome oxidase staining facilitates unequivocal visualization of the primary gustatory area in the fronto-operculo-insular cortex of macaque monkeys." Neuroscience Letters 130, no. 1 (September 1991): 61–64. http://dx.doi.org/10.1016/0304-3940(91)90227-k.

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18

Hirayama, Takehisa, Ken Ikeda, Kiyokazu Kawabe, Yuichi Ishikawa, Konosuke Iwamoto, Hisanobu Harada, Hiroshi Suzuki, and Yasuo Iwasaki. "A Case of Superficial Hemisensory Dysfunction due to Operculo-insular Infarction: Radiological Depiction of Thalamocortical Projections to the Secondary Somatosensory Cortex." Journal of Stroke and Cerebrovascular Diseases 23, no. 1 (January 2014): 187–90. http://dx.doi.org/10.1016/j.jstrokecerebrovasdis.2012.11.010.

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19

Lenoir, Cédric, Gan Huang, Yves Vandermeeren, Samar Marie Hatem, and André Mouraux. "Human primary somatosensory cortex is differentially involved in vibrotaction and nociception." Journal of Neurophysiology 118, no. 1 (July 1, 2017): 317–30. http://dx.doi.org/10.1152/jn.00615.2016.

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The role of the primary somatosensory cortex (S1) in vibrotaction is well established. In contrast, its involvement in nociception is still debated. Here we test whether S1 is similarly involved in the processing of nonnociceptive and nociceptive somatosensory input in humans by comparing the aftereffects of high-definition transcranial direct current stimulation (HD-tDCS) of S1 on the event-related potentials (ERPs) elicited by nonnociceptive and nociceptive somatosensory stimuli delivered to the ipsilateral and contralateral hands. Cathodal HD-tDCS significantly affected the responses to nonnociceptive somatosensory stimuli delivered to the contralateral hand: both early-latency ERPs from within S1 (N20 wave elicited by transcutaneous electrical stimulation of median nerve) and late-latency ERPs elicited outside S1 (N120 wave elicited by short-lasting mechanical vibrations delivered to index fingertip, thought to originate from bilateral operculo-insular and cingulate cortices). These results support the notion that S1 constitutes an obligatory relay for the cortical processing of nonnociceptive tactile input originating from the contralateral hemibody. Contrasting with this asymmetric effect of HD-tDCS on the responses to nonnociceptive somatosensory input, HD-tDCS over the sensorimotor cortex led to a bilateral and symmetric reduction of the magnitude of the N240 wave of nociceptive laser-evoked potentials elicited by stimulation of the hand dorsum. Taken together, our results demonstrate in humans a differential involvement of S1 in vibrotaction and nociception. NEW & NOTEWORTHY Whereas the role of the primary somatosensory cortex (S1) in vibrotaction is well established, its involvement in nociception remains strongly debated. By assessing, in healthy volunteers, the effect of high-definition transcranial direct current stimulation over S1, we demonstrate a differential involvement of S1 in vibrotaction and nociception.

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20

Lenoir, Cédric, Maxime Algoet, Camille Vanderclausen, André Peeters, Susana Ferrao Santos, and André Mouraux. "Report of one confirmed generalized seizure and one suspected partial seizure induced by deep continuous theta burst stimulation of the right operculo-insular cortex." Brain Stimulation 11, no. 5 (September 2018): 1187–88. http://dx.doi.org/10.1016/j.brs.2018.05.004.

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21

Washington, Stuart D., Rakib U. Rayhan, Richard Garner, Destie Provenzano, Kristina Zajur, Florencia Martinez Addiego, John W. VanMeter, and James N. Baraniuk. "Exercise alters brain activation in Gulf War Illness and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome." Brain Communications 2, no. 2 (2020). http://dx.doi.org/10.1093/braincomms/fcaa070.

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Abstract Gulf War Illness affects 25–30% of American veterans deployed to the 1990–91 Persian Gulf War and is characterized by cognitive post-exertional malaise following physical effort. Gulf War Illness remains controversial since cognitive post-exertional malaise is also present in the more common Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. An objective dissociation between neural substrates for cognitive post-exertional malaise in Gulf War Illness and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome would represent a biological basis for diagnostically distinguishing these two illnesses. Here, we used functional magnetic resonance imaging to measure neural activity in healthy controls and patients with Gulf War Illness and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome during an N-back working memory task both before and after exercise. Whole brain activation during working memory (2-Back > 0-Back) was equal between groups prior to exercise. Exercise had no effect on neural activity in healthy controls yet caused deactivation within dorsal midbrain and cerebellar vermis in Gulf War Illness relative to Myalgic Encephalomyelitis/Chronic Fatigue Syndrome patients. Further, exercise caused increased activation among Myalgic Encephalomyelitis/Chronic Fatigue Syndrome patients within the dorsal midbrain, left operculo-insular cortex (Rolandic operculum) and right middle insula. These regions-of-interest underlie threat assessment, pain, interoception, negative emotion and vigilant attention. As they only emerge post-exercise, these regional differences likely represent neural substrates of cognitive post-exertional malaise useful for developing distinct diagnostic criteria for Gulf War Illness and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome.

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