Electrophysiological studies on human pain perception
Clinical NeurophysiologyPublished 13 January 2005
Ryusuke Kakigi, Koji Inui, Yohei Tamura
Citations142
SJR quartileQ1
SJR score1.33
SNIP1.38
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TL;DR
The new method, epidermal stimulation (ES), which is useful for recording brain activities by the signals ascending through A delta fibers, is introduced, which will probably be used for evaluation of continuous tonic pain such as cancer pain, which evoked response studies cannot evaluate.
Abstract
One promising approach in the near future is to analyze the change of a frequency band. This method will probably be used for evaluation of continuous tonic pain such as cancer pain, which evoked response studies cannot evaluate.
Keywords
MedicineNeuroscience
Journal of NeuroscienceThe origin of corticospinal projections from the premotor areas in the frontal lobe
1,435 Citations1991RP Dum, PL Strick
Observations indicate that a substantial component of the corticospinal system originates from the premotor areas in the frontal lobe, and raise serious questions about the utility of viewing the primary motor cortex as the “upper motoneuron” or “final common pathway” for the central control of movement.
PainDiffuse noxious inhibitory controls (DNIC). I. Effects on dorsal horn convergent neurones in the rat
1,352 Citations1979Daniel Le Bars, Anthony H. Dickenson +1 more
Since non‐noxious stimuli were ineffective in this respect, the term “diffuse noxious inhibitory controls” (DNIC) is proposed, and long lasting post‐effects directly related to the duration of conditioning painful stimulus were observed.
PainThe cortical representation of pain
1,075 Citations1999Rolf‐Detlef Treede, Daniel R. Kenshalo +2 more
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NeuronBrain Systems Mediating Aversive Conditioning: an Event-Related fMRI Study
955 Citations1998Christian Büchel, Jond Morris +2 more
Differential responses of the amygdalae were best characterized by a time by stimulus interaction indicating a rapid adaptation of CS+-specific responses in this region.
Journal of NeuroscienceExacerbation of Pain by Anxiety Is Associated with Activity in a Hippocampal Network
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Journal of NeuroscienceDistributed processing of pain and vibration by the human brain
806 Citations1994RC Coghill, J. D. Talbot +5 more
Comparisons of pain and vibrotactile stimulation revealed that both stimuli produced activation in similar regions of SI and SII, regions long thought to be involved in basic somatosensory processing, which reflects the complex nature of pain.
Acta neurochirurgica. SupplementumChronic Motor Cortex Stimulation for the Treatment of Central Pain
620 Citations1991T. Tsubokawa, Y. Katayama +3 more
The effect of stimulation on pain and capability of producing muscle twitch disappeared simultaneously in these cases and the effect reappeared after the revisions, indicating that appropriate stimulation of the motor cortex is definitely necessary for obtaining satisfactory pain control in these patients.
BrainPainful stimuli evoke different stimulus–response functions in the amygdala, prefrontal, insula and somatosensory cortex: a single‐trial fMRI study
582 Citations2002Karin Bornhövd, Markus Quante +4 more
Pain-related regions in the secondary somatosensory cortex and insular cortex showed a response that did not distinguish between innocuous trials but showed a positive linear relationship with signal changes for painful trials, indicating that the amygdala is involved in coding 'uncertainty', as has been suggested previously in relation to classical conditioning.
PainElectrical stimulation of motor cortex for pain control: a combined PET-scan and electrophysiological study
555 Citations1999Luís García‐Larrea, Roland Peyron +8 more
The results suggest that descending axons, rather than apical dendrites, are primarily activated by MCS, and highlight the thalamus as the key structure mediating functional MCS effects, and propose a model of MCS action.
Journal of neurosurgeryChronic motor cortex stimulation in patients with thalamic pain
539 Citations1993Takashi Tsubokawa, Yoichi Katayama +3 more
While stimulation of the first- to third-order sensory neurons at the level of the thalamic relay nucleus or below cannot bring about good pain inhibition in patients withThalamic pain, activation of hypothetical fourth- order sensory neurons through precentral stimulation may be able to inhibit deafferented nociceptive neurons within the cortex.
Neurophysiologie CliniqueBrain generators of laser-evoked potentials: from dipoles to functional significance
530 Citations2003Luís García‐Larrea, Maud Frot +1 more
Data on cortical generators of laser-evoked potentials in humans is reviewed, as inferred from dipolar modelling of scalp EEG/MEG results, as well as from intracranial data recorded with subdural grids or intracortical electrodes, to suggest that a parallel processing in SI and SII has remained functional in humans for noxious inputs, whereas hierarchical processing from SI toward S II has emerged for other somatosensory sub-modalities.
Journal of NeuroscienceExpectation of Pain Enhances Responses to Nonpainful Somatosensory Stimulation in the Anterior Cingulate Cortex and Parietal Operculum/Posterior Insula: an Event-Related Functional Magnetic Resonance Imaging Study
524 Citations2000Nobukatsu Sawamoto, Manabu Honda +6 more
It is suggested that ACC and PO/PI are involved in modulation of affective aspect of sensory perception by the uncertain expectation of painful stimulus.
Journal of NeuroscienceNovel classes of responsive and unresponsive C nociceptors in human skin
496 Citations1995Roland Schmidt, Martin Schmelz +4 more
Novel classes of C nociceptors in human skin are reported, namely, units responding only to mechanical stimuli (CM), units respondingonly to heating (CH), and units that were insensitive to mechanical and heating stimuli and also to sympathetic provocation tests (CMiHi).
Journal of NeurophysiologyFunctional MRI Study of Thalamic and Cortical Activations Evoked by Cutaneous Heat, Cold, and Tactile Stimuli
468 Citations1998Karen D. Davis, Chun L. Kwan +2 more
Functional magnetic resonance imaging is used to locate discrete regions of the thalamus, insula, and second somatosensory cortex modulated during innocuous and noxious thermal stimulation and provides support for a role of the anterior insula and S2 in the perception of pain; whereas the posterior insula appears to be involved in tactile and innocuous temperature perception.
Journal of NeurophysiologyNeurogenic hyperalgesia: the search for the primary cutaneous afferent fibers that contribute to capsaicin-induced pain and hyperalgesia
455 Citations1991Thomas Baumann, Donald A. Simone +2 more
The depressed responsiveness of both myelinated and unmyelinated nociceptive fibers in the monkey to heat and/or mechanical stimulation of the injection site after capsaicin was injected inside their RFs correlated with the analgesia observed at the Capsaicin injection site in the human.
Electroencephalography and Clinical NeurophysiologyNeurophysiological evaluation of pain
413 Citations1998B. Bromm, Jürgen Lorenz
Particular emphasis is put upon laser-evoked potentials and their application for diagnosis, pathophysiological description and monitoring of patients with neurological disorders and abnormal pain states.
PubMedNerve fibre discharges, cerebral potentials and sensations induced by CO2 laser stimulation.
410 Citations1984B. Bromm, Rolf‐Detlef Treede
Intensity discrimination, as evaluated by measures of Signal Detection Theory, was better in the peripheral C-units than in the subjective ratings, and high correlations were found between the number of spikes elicited by a given stimulus and the intensity of the evoked sensation.
BrainNeural activation during acute capsaicin-evoked pain and allodynia assessed with PET
388 Citations1998Michael J. Iadarola
Unlike capsaicin-induced pain, allodynia was characterized by bilateral activation of inferior prefrontal cortex, suggesting that prefrontal responses to pain are context dependent.
Neurophysiologie CliniqueClinical usefulness of laser-evoked potentials
384 Citations2003Rolf‐Detlef Treede, Jürgen Lorenz +1 more
This review outlines principles and recording techniques for LEP in patients and compiles typical LEP findings in patients with lesions due to different diseases at various levels of the nociceptive pathways.
The Journal of Comparative NeurologySomatic submodality distribution within the second somatosensory (SII), 7b, retroinsular, postauditory, and granular insular cortical areas of <i>M. fascicularis</i>
380 Citations1980C.J. Robinson, H. Burton
Somatic response properties were determined for over 1,300 neurons isolated within and near the lateral sulci of unanesthetized and unparalyzed cynomolgus monkeys.
The Journal of Comparative NeurologyOrganization of somatosensory receptive fields in cortical areas 7b, retroinsula, postauditory and granular insula of <i>M. fascicularis</i>
364 Citations1980C.J. Robinson, H. Burton
The boundaries of the second somatic sensory cortex (SII) in primates are difficult to define physiologically because cutaneous stimulation activates several regions around SII that do not receive projections from the ventroposterior nucleus of the thalamus.
Journal of Clinical NeurophysiologyNeurophysiology and Functional Neuroanatomy of Pain Perception
344 Citations2000Alfons Schnitzler, Markus Ploner
The authors review the evidence on which the proposed relationship between cortical areas, pain-related neural activations, and components of pain perception is based.
NeuroreportPain relief induced by repetitive transcranial magnetic stimulation of precentral cortex
313 Citations2001Jean-Pascal Lefaucheur, Xavier Drouot +2 more
This study shows that a transient pain relief can be induced by 10 Hz rTMS of the motor cortex in some patients suffering from chronic neurogenic pain.
PainAltered heat pain thresholds and cerebral event-related potentials following painful CO2 laser stimulation in subjects with fibromyalgia syndrome
306 Citations1994Stephen J. Gibson, Geoff Littlejohn +3 more
The results indicate that patients with FS exhibit a significant reduction in heat pain threshold when tested on the dorsal surface of the hand and a greater activation of central nervous system (CNS) pathways following noxious input.
Muscle & NerveElectrophysiological studies of myoclonus
297 Citations2004Hiroshi Shibasaki, Mark Hallett
Electrophysiological studies provide useful information for its diagnosis and classification, and about its generator mechanisms, and the electroencephalogram–electromyogram polygraph reveals the most important information about the myoclonus of interest.
PainPreferential stimulation of Aδ fibers by intra-epidermal needle electrode in humans
295 Citations2002Koji Inui, Tuan Diep Tran +2 more
The ES with a newly developed needle electrode was a very convenient method for the selective stimulation of the A&dgr; fibers, since it was very simple, not requiring any special apparatus, did not cause bleeding or burns and caused minimum uncomfortable feeling.
NeuroreportAssociation and dissociation between laser-evoked potentials and pain perception
290 Citations1997Luís García‐Larrea, Roland Peyron +2 more
While laser vertex potentials may reflect attentional/perceptual mechanisms that determine subjective experience, the middle-latency NP160 behaves as a pre-Perceptual sensory response that should be advantageous in the assessment of early cortical pain processing.
The Journal of Comparative NeurologyCingulate input to the primary and supplementary motor cortices in the rhesus monkey: Evidence for somatotopy in areas 24c and 23c
289 Citations1992Robert J. Morecraft, Gary W. Van Hoesen
The distribution of cingulate projections to the somatotopically related parts of the primary and supplementary motor cortices of the monkey by using fluorescent dyes was examined and labelled neurons were found.
Journal of Clinical NeurophysiologyEquivalent Electrical Source Analysis of Pain-Related Somatosensory Evoked Potentials Elicited by a CO2 Laser
286 Citations1993Ina M. Tarkka, Rolf‐Detlef Treede
A four-dipole model was developed using data following left- hand stimulation and yielded good fits for right-hand and left-foot stimulation data and, in addition, another set of left-hand data obtained with different electrode spacing in a different group of subjects (residual variances from 2.8% to 3.3%).
Journal of NeurophysiologyParallel Activation of Primary and Secondary Somatosensory Cortices in Human Pain Processing
281 Citations1999Markus Ploner, Frank Schmitz +2 more
Preservation of direct access to SII underscores the relevance of this area in human pain processing, probably reflecting an important role of SII in nociceptive learning and memory.
Journal of NeurophysiologyCerebral Processing of Acute Skin and Muscle Pain in Humans
276 Citations1997Peter Svensson, Satoshi Minoshima +3 more
Similar cerebral activation patterns suggest that the perceived differences between acute skin and muscle pain are mediated by differences in the intensity and temporospatial pattern of neuronal activity within similar sets of forebrain structures.
PainAttentional modulation of the nociceptive processing into the human brain: selective spatial attention, probability of stimulus occurrence, and target detection effects on laser evoked potentials
271 Citations2002Valéry Legrain, Jean‐Michel Guérit +2 more
It is suggested that several attentional processes can modify nociceptive processing in the brain at different stages, and LEP activities in the time‐range of N1 and N2 showed evidence of processes modulated by the direction of spatial attention.
PainElectrical stimulation of precentral cortical area in the treatment of central pain: electrophysiological and PET study
271 Citations1995Roland Peyron, Luís García‐Larrea +6 more
The results suggest that PGS‐induced analgesia is somatotopically mediated and does not require the integrity of somatosensory cortex and lemniscal system and may be rather related to attentional and/or emotional processes.
Journal of NeurophysiologyDifferential Coding of Pain Intensity in the Human Primary and Secondary Somatosensory Cortex
268 Citations2001Lars Timmermann, Markus Ploner +4 more
The activation pattern of SI suggests participation of SI in the discriminative perception of pain intensity and the all-or-none-like activation pattern in SII points against a significant contribution of SII to the sensory-discriminative aspects of pain perception.
PubMedLaser-evoked cerebral potentials in the assessment of cutaneous pain sensitivity in normal subjects and patients.
267 Citations1991B. Bromm, Rolf‐Detlef Treede
Evoked cerebral potentials in response to laser heat stimuli applied to the hairy skin can be used for an overall examination of the functional integrity of peripheral small fibres, anterolateral tracts and thalamocortical projections.
Journal of neurosurgeryPoststroke pain control by chronic motor cortex stimulation: neurological characteristics predicting a favorable response
265 Citations1998Yoichi Katayama, Chikashi Fukaya +1 more
The findings suggest that the pain control afforded by MC stimulation requires neuronal circuits that are maintained by the presence of intact corticospinal tract neurons originating from the MC.
Electroencephalography and Clinical Neurophysiology/Evoked Potentials SectionVariability of laser-evoked potentials: attention, arousal and lateralized differences
258 Citations1993Ahmad Beydoun, Thomas J. Morrow +2 more
The peak-to-peak LEP amplitude decreased 38% during a distraction task and 42% during drowsiness and was absent during stage 2 sleep, indicating a modulation of responsiveness to laser stimulation during distraction and decreased states of arousal.
Experimental Brain ResearchEvoked cerebral responses to noxious thermal stimuli in humans
248 Citations1976A. Carmon, Joseph Mor +1 more
Brief pulses of Laser emitted radiant heat were used to induce cutaneous painful sensations in human volunteers and a late negative-positive component of the EP which correlated in amplitude with the subjective sensation was abserved in four subjects.
Proceedings of the National Academy of SciencesLearning about pain: The neural substrate of the prediction error for aversive events
245 Citations2000Alexander Ploghaus, Irene Tracey +4 more
Brain activity during different types of mismatch in a paradigm where contrasting-colored lights signaled the delivery of painful heat, nonpainful warmth, or no stimulation was studied to identify new treatments for chronic pain.
Neurophysiologie CliniqueInterventional neurophysiology for pain control: duration of pain relief following repetitive transcranial magnetic stimulation of the motor cortex
244 Citations2001J.-P. Lefaucheur, Xavier Drouot +1 more
It is shown that a transient pain relief can be induced in patients suffering from chronic neurogenic pain during about the week that follows a 20-min session of 10 Hz-rTMS applied over the motor cortex.
Electroencephalography and Clinical Neurophysiology/Evoked Potentials SectionScalp topography and dipolar source modelling of potentials evoked by CO2 laser stimulation of the hand
239 Citations1996Massimiliano Valeriani, Loı̈c Rambaud +1 more
The findings suggest that the second somatosensory area contralateral to the stimulation is the first involved in the building of pain-related responses, followed by ipsilateral second somatic area and limbic areas receiving noxious inputs from the periphery.
PainReduced habituation to experimental pain in migraine patients: a CO2 laser evoked potential study
235 Citations2003Massimiliano Valeriani, Marina de Tommaso +10 more
No functional impairment of the nociceptive pathways, including the trigeminal pathways, was found in either MO or CTTH patients, but patients with migraine had a reduced habituation, which probably reflects an abnormal excitability of the cortical areas involved in pain processing.
Journal of NeurophysiologyPainful Stimuli Evoke Potentials Recorded Over the Human Anterior Cingulate Gyrus
231 Citations1998Fred A. Lenz, Matthew Ríos +4 more
There is significant direct nociceptive input to the human anterior cingulate gyrus (Brodmann's area 24) and potentials evoked by painful cutaneous stimulation with a CO2 laser are reported and recorded from subdural electrodes over the medial wall of the hemisphere.
Journal of NeurophysiologyDifferential Organization of Touch and Pain in Human Primary Somatosensory Cortex
229 Citations2000Markus Ploner, Frank Schmitz +2 more
Generation of the single nociceptive response in area 1, whereas tactile stimuli activate sequentially peaking sources in areas 3b and 1 is suggested, which may reflect that pain perception rather requires reactions to and avoidance of harmful stimuli than sophisticated sensory capacities.
Neurophysiologie CliniqueHow do we selectively activate skin nociceptors with a high power infrared laser? Physiology and biophysics of laser stimulation
228 Citations2003Léon Plaghki, André Mouraux
Different methods, which increase the selectivity of the laser stimulation, restricting the activation to isolated C-fiber nociceptors, open new perspectives in the study of the cerebral processing of signals ascending through A(delta) and/or C nocICEptors and should contribute to a better understanding of their central interaction and integration in normal and pathological states.
Electroencephalography and Clinical NeurophysiologyBrain electrical source analysis of laser evoked potentials in response to painful trigeminal nerve stimulation
226 Citations1995B. Bromm, Andrew C.N. Chen
Cerebral generators of long latency brain potentials in response to painful heat stimuli were identified from potential distributions in 31 EEG leads, using the brain electrical source analysis (BESA) programme in the multiple spatio-temporal dipole mode.
Proceedings of the National Academy of SciencesCortical representation of first and second pain sensation in humans
225 Citations2002Markus Ploner, Joachim Groß +2 more
Progress in NeurobiologyThe somatosensory evoked magnetic fields
222 Citations2000Ryusuke Kakigi, Minoru Hoshiyama +9 more
A newly-developed multi (12)-channel gradiometer system with the smallest and highest quality superconducting quantum interference device (micro-SQUID) available to non-invasively detect the magnetic fields of a human peripheral nerve is introduced.
Neurophysiologie CliniqueContribution of attentional and cognitive factors to laser evoked brain potentials
220 Citations2003Jürgen Lorenz, Luís García‐Larrea
Evidence is reviewed that LEP represent a series of event-related potentials that depend on vigilance and arousal, selective spatial attention and contextual task variables that can be overlapped or supplemented by endogenous components such as the processing negativity and distinct members of the "P300" activities.
BrainDual representation of pain in the operculo-insular cortex in humans
220 Citations2003Maud Frot
The sequential timing of activation of the suprasylvian and insular cortices shown in this study thus complements in the time domain the spatial information provided by neuroimaging studies of the cortical processing of pain.
PubMedThe intracutaneous stimulus: a new pain model for algesimetric studies.
220 Citations1984B. Bromm, W. Meier
An intracutaneous pain stimulus is described for psychophysiological studies in man, which can easily be applied and which elicits highly reliable pain reactions in sessions repeated on different days, as well as in long-lasting sessions within a single day.
NeuroImageA Comparative fMRI Study of Cortical Representations for Thermal Painful, Vibrotactile, and Motor Performance Tasks
217 Citations1999Patricia A. Gelnar, Beth R. Krauss +3 more
The study indicates that fMRI enables examination of cortical networks subserving pain perception at an anatomical detail not available with other brain imaging techniques and shows that this cortical network underlying pain perception shares components with the networks underlying touch perception and motor execution.
BrainLaser-evoked potential abnormalities in central pain patients: the influence of spontaneous and provoked pain
213 Citations2002Luís García‐Larrea
It is concluded that, as currently recorded, LEPs essentially reflect the activity of a 'lateral' pain system subserved at the periphery by rapidly conducting A-delta fibres, and are useful to document the sensorial deficits leading to neuropathic pain syndromes.
Electroencephalography and Clinical Neurophysiology/Evoked Potentials SectionMiddle and long latency somatosensory evoked potentials after painful laser stimulation in patients with fibromyalgia syndrome
202 Citations1996J. Lorenz, K Grasedyck +1 more
Ten female patients with fibromyalgia syndrome investigated with laser evoked potentials after hand stimulations and compared with 10 female pain-free and age-matched control patients exhibited significantly lower heat pain thresholds than controls and had higher amplitudes of LEP components N170 and P390 in response to intensities of 20 W.
NeuroImageRole of Operculoinsular Cortices in Human Pain Processing: Converging Evidence from PET, fMRI, Dipole Modeling, and Intracerebral Recordings of Evoked Potentials
200 Citations2002Roland Peyron, Maud Frot +7 more
This multimodal study provides cross-validated spatial and temporal information on the pain-related processes occurring in the operculoinsular region, which thus appears as a major site for the early cortical pain encoding in the human brain.
Experimental Brain ResearchHuman cerebral potentials evoked by CO2 laser stimuli causing pain
190 Citations1987B. Bromm, Rolf‐Detlef Treede
The similarity of these components indicates that both EPs may be secondary responses to afferent input into neural centers, onto which myelinated and unmyelinated fibres converge, and may explain why ultralate EPs are not reliably present without peripheral nerve block.
Brain ResearchPrimary somatosensory cortex is actively involved in pain processing in human
189 Citations2000Masutaro Kanda, Takashi Nagamine +9 more
It is postulated that the pain impulse is received in the crown of the postcentral gyrus in human.
PainC- and Aδ-fiber components of heat-evoked cerebral potentials in healthy human subjects
182 Citations1999Walter Magerl, Zahid Ali +3 more
The method of temperature-controlled laser heat stimuli allows the selective and reliable examination of Aδ- and C-fiber-mediated afferent pathways and the related cortical processing without the complication of dissociating A- fiber nerve blocks.
Brain ResearchA modality-specific somatosensory area within the insula of the rhesus monkey
182 Citations1993Richard J. Schneider, David P. Friedman +1 more
Results indicate that a major portion of Ig is a somatic processing area exclusively, with units that have large and often bilateral receptive fields, consistent with the view that this area serves as a higher-order, modality-specific link in the somatosensory-limbic pathway.
PainSomatosensory event-related potentials to painful and non-painful stimuli: effects of attention
180 Citations1989Wolfgang H. R. Miltner, Ray Johnson +2 more
The data give evidence that attentional manipulations represent a powerful method to decrease the perception of pain and that the Somatosensory event‐related potential represents a valuable asset in the multidimensional approach to pain measurement and assessment.
Clinical NeurophysiologyIntracortical recordings of early pain-related CO2-laser evoked potentials in the human second somatosensory (SII) area
173 Citations1999Maud Frot, Loı̈c Rambaud +2 more
It is suggested that activation of SII area contralateral to stimulation, possibly through direct thalamocortical projections, represents the first step in the cortical processing of peripheral A delta fiber pain inputs.
Neuroscience ResearchSomatosensory evoked magnetic fields following median nerve stimulation
171 Citations1994Ryusuke Kakigi
Short- and middle-latency SEFs are mainly generated in area 3b in SI contralateral to the stimulated median nerve, and responses generated in areas 1 of SI and SII affect the SEFs to some degree.
Journal of NeurophysiologyResponses of Neurons in the Insular Cortex to Gustatory, Visceral, and Nociceptive Stimuli in Rats
171 Citations1998Takamitsu Hanamori, Takato Kunitake +2 more
The results indicate that the insular cortex neurons distributing between the taste area and the visceral area receive convergent inputs from baroreceptor, chemoreceptor, gustatory, and nociceptive organs and may have roles in taste aversion or in regulation of visceral responses.
Neuroscience LettersDirect isolation of ultra-late (C-fibre) evoked brain potentials by CO2 laser stimulation of tiny cutaneous surface areas in man
169 Citations1996Dominique Bragard, A.C.N. Chen +1 more
It is reported that CO2 laser heat stimulation of tiny skin surface area provides a unique method to directly and selectively activate C-fibre as assessed by the ultra-late brain potentials evoked consistently across a set of stimulus energy levels.
Experimental Brain ResearchSomatotopic organization along the central sulcus, for pain localization in humans, as revealed by positron emission tomography
163 Citations1997Jesper Andersson, Anders Lilja +5 more
Regional cerebral blood flow was measured with positron emission tomography in six healthy volunteers at rest and during experimentally induced, sustained cutaneous pain on the dorsum of the right hand or on the anterior cingulate gyrus and the ipsilateral prefrontal cortex to show consistent with an involvement of SI in the spatial discrimination of acute cutaneousPain.
Electroencephalography and Clinical Neurophysiology/Evoked Potentials SectionPain-related somatosensory evoked potentials following CO2 laser stimulation in man
162 Citations1989Ryusuke Kakigi, Hiroshi Shibasaki +1 more
It is concluded that N1 of the foot pain SEPs is generated mainly from the foot area of SI, and the variable scalp distribution of the N1 component of the FootpainSEPs is likely due to an anatomical variability among subjects and even between sides.
Treatment of Deafferentation Pain by Chronic Stimulation of the Motor Cortex: Report of a Series of 20 Cases
161 Citations1997Jean Paul Nguyen, Yves Kéravel +5 more
This study confirms the potential value of motor cortex stimulation in the treatment of certain forms of intractable pain, especially in cases with trigeminal neuropathicPain, and develops a small extradural haematoma which resolved spontaneously.
BrainUnmyelinated trigeminal pathways as assessed by laser stimuli in humans
158 Citations2003G. Cruccu
The trigeminal territory yields rewarding LEP findings owing to the high density of thermal receptors and, because the short conduction distance, minimizes the problem of signal dispersion along slow-conducting unmyelinated afferents.
PainLaser emitted radiant heat for pain research
155 Citations1975Joseph Mor, Amiram Carmon
Computer controlled radiant heat stimulation for a combined psychophysical and electrophysiological research in pain was achieved by the use of an infrared Laser beam, suitable for recording of averaged evoked responses as well as for determination of pain and thermal thresholds.
NeuroscienceA comparative magnetoencephalographic study of cortical activations evoked by noxious and innocuous somatosensory stimulations
146 Citations2003Koji Inui, Tuan Diep Tran +4 more
The results suggested that cortical processing was similar between noxious and innocuous stimulation in SI and SII, but different in insular cortex, and implied that activities in the amygdala/hippocampal formation represented common effects ofNoxious and tactile stimulations.
Journal of Neurology Neurosurgery & PsychiatryMechanisms of pain relief by vibration and movement.
144 Citations1992Ryusuke Kakigi, H. Shibasaki
The results of this investigation throw light on the mechanisms of the alleviation of pain by vibration and movement, indicating that an increase in the inhibitory mechanisms of painful feeling was induced by the concurrently adopted sensory inputs mediated by large myelinated fibres.
Neuroscience LettersPain-related magnetic fields following painful CO2 laser stimulation in man
143 Citations1995Ryusuke Kakigi, Sachiko Koyama +4 more
The initial somatosensory evoked magnetic fields following painful heat stimulation by CO2 laser beam applied to the upper and lower limb were investigated in normal subjects and it is considered that neurons in the bilateral SII are initially activated following painfulHeat stimulation.
Stereotactic and Functional NeurosurgeryPositron Emission Tomography during Motor Cortex Stimulation for Pain Control
141 Citations1998Luis Garcı́a-Larrea, Roland Peyron +7 more
The results support a model of MCS action whereby activation of thalamic nuclei directly connected with motor and premotor cortices would entail a cascade of synaptic events in other pain-related structures, including the anterior cingulate and the periaqueductal gray.
PainCutaneous field stimulation (CFS): a new powerful method to combat itch
141 Citations1997Hans‐Jörgen Nilsson, Anders Levinsson +1 more
It is suggested that CFS acts through endogenous central inhibitory mechanisms that are normally activated by scratching the skin, and offers a powerful new method for combating itch.
Electroencephalography and Clinical NeurophysiologyCortical responses to painful CO2 stimulation of nasal mucosa; a magnetoencephalographic study in man
141 Citations1986J. Huttunen, Gerd Kobal +2 more
The field pattern suggested neural activation in the upper bank of the sylvian fissure near the lateral end of the central sulcus, i.e., at or near SII, contributes to the generation of the electrical vertex potential.
Neurophysiologie CliniqueLasers and other thermal stimulators for activation of skin nociceptors in humans
137 Citations2003Lars Arendt‐Nielsen, Andrew C.N. Chen
This paper summarises the current understanding of the physiology and psychophysical response to painful heat stimulation in humans and suggests new methods of heat stimulation may be developed for basic and clinical applications.
NeuroreportFunctional localization of pain perception in the human brain studied by PET
137 Citations1997Xiaoping Xu, Hidenao Fukuyama +9 more
The data indicate that the bilateral SII play an important role in pain perception, but also indicate that there is no pain-related somatotopic organization in the human SII or insula.
NeuroImageLeft-hemisphere dominance in early nociceptive processing in the human parasylvian cortex
135 Citations2003Tanja Schlereth, Ulf Baumgärtner +3 more
A left-hemisphere dominance for the early sensory component of pain perception is reported using brain electrical source analysis of laser-evoked potentials to suggest a dominant role of the left frontal operculum and adjacent dorsal insula in theEarly sensory-discriminative dimensions of pain processing.
Journal of NeurophysiologyEvidence of a Specific Spinal Pathway for the Sense of Warmth in Humans
135 Citations2003Gian Domenico Iannetti, Andrea Truini +5 more
The results support the existence of slow-conducting second-order neurons specific for the sense of warmth in the central nervous system, and study the cortical areas involved in the cerebral processing of warm and nociceptive inputs.
Journal of NeurophysiologyPainful Stimuli Evoke Potentials Recorded From the Parasylvian Cortex in Humans
135 Citations1998Frederick A. Lenz, Matthew Ríos +4 more
The present results are the first direct evidence of nociceptive input to the human parasylvian cortex from a subdural grid of electrodes implanted for evaluation of epilepsy.
Neuroscience LettersEvoked cerebral potential correlates of C-fibre activity in man
132 Citations1983B. Bromm, Horst Neitzel +2 more
CO2 laser emitted radiant heat pulses of 20 ms duration were used to activate predominantly slowly conducting nociceptive cutaneous afferents in man and elicited cerebral potentials with latencies consistent with A delta-fibre activity.
PainRight-hemisphere preponderance of responses to painful CO2 stimulation of the human nasal mucosa
130 Citations1997Riitta Hari, K. Portin +3 more
The right‐hemisphere dominance of the SII responses may be associated with the painful, and thus unpleasant, nature of the CO2 stimulus, thereby suggesting involvement of the right hemisphere in emotional/motivational aspects of trigeminal pain, in agreement with the role of the trigEMinal pathways as a general warning system.
BrainCEREBRAL POTENTIALS EVOKED BY PAINFUL LASER STIMULI IN PATIENTS WITH SYRINGOMYELIA
129 Citations1991Rolf‐Detlef Treede, J. Lankers +4 more
Brief cutaneous heat stimuli generated by a CO2 laser were used to elicit late somatosensory evoked cerebral potentials (SEPc) in 10 patients with syringomyelia to indicate that alteration of SEPc correlates with altered pain sensitivity in patients with a circumscribed spinal lesion.
European NeurologyRepetitive Transcranial Magnetic Stimulation for the Treatment of Chronic Pain – A Pilot Study
128 Citations2002Jens D. Rollnik, Stefanie Wüstefeld +5 more
Patients with therapy-resistant chronic pain syndromes were treated with rTMS of the corresponding motor cortex area for 20 min and some of the patients had an analgesic effect, but the difference between active and sham stimulation did not reach a level of significance.
Clinical NeurophysiologySources of cortical responses to painful CO2 laser skin stimulation of the hand and foot in the human brain
128 Citations2000Massimiliano Valeriani, Domenico Restuccia +4 more
The dipolar model previously proposed for the hand stimulation LEPs can also satisfactorily explain the LEP distribution obtained after foot stimulation and showed that the co-ordinates of the two earliest activated dipoles were compatible with source locations in the upper bank of the Sylvian fissure on both sides.
Electroencephalography and Clinical Neurophysiology/Evoked Potentials SectionLaser-evoked potentials: exogenous and endogenous components
127 Citations1996Ralf Siedenberg, Rolf‐Detlef Treede
The LEP of targets, frequent non-targets and during distraction was dominated by a single large positivity, which was task-dependent and increased the more attention the subject payed to the laser stimuli.
NeurosurgeryTranscranial Magnetic Coil Stimulation of Motor Cortex in Patients with Central Pain
126 Citations1995Keisuke Migita, Tohru Uozumi +2 more
Two patients with deafferentation pain secondary to central nervous system lesions who were evaluated by noninvasive magnetic coil stimulation of the motor cortex followed by electrical motor cortex stimulation with epidural electrode array implantation gave relief from pain.
Brain Research ReviewsThe sensory innervation of primate facial skin. I. Hairy skin
125 Citations1983Bryce L. Munger, Zdeněk Halata
The present study analyzes the variety of sensory nerve terminals present in the hairy skin of the monkey face and finds free nerve endings (FNE's) have been found in the connective tissue capsule of primate sinus and hemisinus hairs and in the same site in guard and vellus hairs.
BrainPAIN-RELATED SOMATOSENSORY EVOKED POTENTIALS IN SYRINGOMYELIA
121 Citations1991Ryusuke Kakigi, Hiroshi Shibasaki +5 more
Pain SEPs combined with electric SEPs appear to be extremely useful for investigating physiological function in the sensory pathways in patients who show 'dissociated sensory loss' such as in syringomyelia.
PainThe P300 in pain evoked potentials
118 Citations1996Ruth Zaslansky, Elliot Sprecher +3 more
It is suggested that the laser EP contains a definite non‐modality‐specific P300 component, and is not a pure neurophysiological correlate of pain intensity.
Journal of Clinical NeurophysiologyPain-Related Somatosensory Evoked Potentials
117 Citations2000Ryusuke Kakigi, Shoko Watanabe +1 more
Combining the study of pain SSEP(L) and conventional S SEP is useful to detect physiologic abnormalities, and sometimes subclinical abnormalities, of patients with peripheral and central nervous system lesions.
PainEffects of 1-Hz repetitive transcranial magnetic stimulation on acute pain induced by capsaicin
116 Citations2003Yoshihiro Tamura, Shingo Okabe +6 more
It is concluded that rTMS over M1 should have beneficial effects on acute pain, and its effects must be caused by functional changes of MPFC and caudal ACC.
Muscle & NerveEstimation of conduction velocity of Aδ fibers in humans
115 Citations1991Ryusuke Kakigi, Chiyoko Endo +3 more
Conduction velocity of Aδ fibers of the human peripheral nerves was measured by using pain‐related somatosensory evoked potentials following CO2 laser stimulation to investigate physiological functions of the small diameter fibers mediating pain‐temperature sensations.
Muscle & NerveCO<sub>2</sub> laser‐induced pain‐related somatosensory evoked potentials in peripheral neuropathies: Correlation between electrophysiological and histopathological findings
113 Citations1991Ryusuke Kakigi, Hiroshi Shibasaki +11 more
The pain SEP is the only one noninvasive and objective method currently available to investigate a physiological condition of the sensory pathway responsible for pain sense, and is especially useful when combined with the conventional electric SEPs.
Electroencephalography and Clinical NeurophysiologyPrincipal component analysis of pain-related cerebral potentials to mechanical and electrical stimulation in man
113 Citations1982B. Bromm, E. Scharein
ERP wave form was shown to depend upon the amount of alpha waves in the prestimulus EEG, and PCA applied to disjunctive subsets of ERPs yielded practically identical sets of PCs, such that no specific ERP component emerged when pain was reported.
Neuroscience LettersNeuromagnetic localization of cortical activity evoked by painful dental stimulation in man
112 Citations1983Riitta Hari, E. Kaukoranta +3 more
Cerebral magnetic fields evoked by painful dental stimulation indicate a current source at the upper bank of the anterior Sylvian Fissure, corresponding to the anterior end of the secondary somatosensory cortex, which suggests cortical representation of tooth pulp in man.
Experimental Brain ResearchAspirin analgesia evaluated by event-related potentials in man: Possible central action in brain
109 Citations1980A. C. N. CHEN, C. Richard Chapman
In this study, possible brain effects of 975 mg aspirin in man are demonstrated and it is postulated that aspirin may act centrally in pain processing.
International Journal of NeurosciencePain Related Cerebral Potentials: Late and Ultralate Components
107 Citations1987B. Bromm, Rolf‐Detlef Treede
Clinical application of CO2 laser EPs promises to nonivasively assess A delta- and C-fibre function and the filtered ultralate waveforms look very similar to the late EP components.
PainResponses of the supra-sylvian (SII) cortex in humans to painful and innocuous stimuli
106 Citations2001Maud Frot, Luís García‐Larrea +2 more
The intrinsic characteristics and localization of nociceptive CO2 laser evoked potential (LEP) and non‐nocICEptive electrical EP (SEP) sources recorded by deep electrodes directly implanted in the supra‐sylvian cortex of 15 epileptic patients are compared and the SII cortex is defined as a cortical integration area of non‐NOCiceptive and noc iceptive inputs.
Journal of NeurophysiologyDipole Source Analysis of Laser-Evoked Subdural Potentials Recorded From Parasylvian Cortex in Humans
105 Citations2003Hagen Vogel, John D. Port +4 more
The findings suggest that the nociceptive area in human parasylvian cortex that is activated most rapidly by noxious heat pulses may be separate from the tactile SII area.
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