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See detailNeurophysiological correlates of hypnotic analgesia
Vanhaudenhuyse, Audrey ULg; Boly, Mélanie ULg; Laureys, Steven ULg et al

in Contemporary Hypnosis (2009), 26(1), 15-23

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See detailNEUROPHYSIOLOGICAL CORRELATES OF HYPNOTIC ANALGESIA
Vanhaudenhuyse, Audrey ULg; Boly, Mélanie ULg; LAUREYS, Steven ULg et al

in Contemporary Hypnosis (2009), 26(1), 15-23

This short review describes recent advances in understanding hypnotic modulation of pain. Our current understanding of pain perception is followed by a critical review of the hypnotic analgesia studies ... [more ▼]

This short review describes recent advances in understanding hypnotic modulation of pain. Our current understanding of pain perception is followed by a critical review of the hypnotic analgesia studies using EEG, evoked potential and functional imaging methodologies. [less ▲]

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See detailNeurophysiological features of the migrainous brain
Schoenen, Jean ULg

in Neurological Sciences (2006), 27(Suppl. 2), 77-81

Migraine is a disorder in which central nervous system (CNS) dysfunction might play a pivotal role. As there are no consistent structural disturbances, clinical neurophysiology methods seem particularly ... [more ▼]

Migraine is a disorder in which central nervous system (CNS) dysfunction might play a pivotal role. As there are no consistent structural disturbances, clinical neurophysiology methods seem particularly suited to study its pathophysiology. This chapter will focus on a review of neurophysiological studies that have provided an insight into migraine pathogenesis. The results are in part contradictory, which may be due to the methodology, patient selection or timing of study. Nonetheless, quantitative electroencephalography and magnetoencephalography recordings during migraine attacks provide strong, though indirect, evidence favouring the occurrence of spreading cortical depression during attacks of migraine with, and possibly without, aura. Evoked cortical potential and nociceptive blink reflex studies demonstrate that lack of habituation during repetitive stimulation is a reproducible CNS dysfunction interictally in both migraine with and without aura. Transcranial magnetic stimulations show excitability changes of the visual cortex. The interictal migrainous CNS dysfunction is likely to play a role in migraine pathogenesis, has a familial character and undergoes periodic modulations with quasi-normalisation just before, during an attack and after treatment with certain prophylactic agents. In addition, neurophysiological methods have revealed subclinical abnormalities of cerebellar function and neuromuscular transmission, which may improve phenotyping of migraineurs for genetic and therapeutic studies. [less ▲]

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See detailNeurophysiological mechanisms of hypnosis
Faymonville, Marie-Elisabeth ULg; Maquet, Pierre ULg; Laureys, Steven ULg

in International Journal of Psychophysiology (2004, September), 54(1-2), 43-44

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See detailNeurophysiological studies in migraine
Schoenen, Jean ULg; Aurora, S.

in Olesen, J.; Goadsby, P.; Ramadan, N. (Eds.) et al The Headaches (2005)

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See detailNeurophysiological tests and neuroimaging procedures in non-acute headache (2nd edition).
Sandrini, G.; Friberg, L.; Coppola, G. et al

in European Journal of Neurology (2011), 18

Background and purpose: A large number of instrumental investigations are used in patients with non-acute headache in both research and clinical fields. Although the literature has shown that most of ... [more ▼]

Background and purpose: A large number of instrumental investigations are used in patients with non-acute headache in both research and clinical fields. Although the literature has shown that most of these tools contributed greatly to increasing understanding of the pathogenesis of primary headache, they are of little or no value in the clinical setting. Methods: This paper provides an update of the 2004 EFNS guidelines and recommendations for the use of neurophysiological tools and neuroimaging procedures in non-acute headache (first edition). Even though the period since the publication of the first edition has seen an increase in the number of published papers dealing with this topic, the updated guidelines contain only minimal changes in the levels of evidence and grades of recommendation. Results: (i) Interictal EEG is not routinely indicated in the diagnostic evaluation of patients with headache. Interictal EEG is, however, indicated if the clinical history suggests a possible diagnosis of epilepsy (differential diagnosis). Ictal EEG could be useful in certain patients suffering from hemiplegic or basilar migraine. (ii) Recording evoked potentials is not recommended for the diagnosis of headache disorders. (iii) There is no evidence warranting recommendation of reflex responses or autonomic tests for the routine clinical examination of patients with headache. (iv) Manual palpation of pericranial muscles, with standardized palpation pressure, can be recommended for subdividing patient groups but not for diagnosis. Pain threshold measurements and EMG are not recommended as clinical diagnostic tests. (v) In adult and pediatric patients with migraine, with no recent change in attack pattern, no history of seizures, and no other focal neurological symptoms or signs, the routine use of neuroimaging is not warranted. In patients with trigeminal autonomic cephalalgia, neuroimaging should be carefully considered and may necessitate additional scanning of intracranial/cervical vasculature and/or the sellar/orbital/(para)nasal region. In patients with atypical headache patterns, a history of seizures and/or focal neurological symptoms or signs, MRI may be indicated. (vi) If attacks can be fully accounted for by the standard headache classification (IHS), a PET or SPECT scan will normally be of no further diagnostic value. Nuclear medical examinations of the cerebral circulation and metabolism can be carried out in subgroups of patients with headache for the diagnosis and evaluation of complications, when patients experience unusually severe attacks or when the quality or severity of attacks has changed. (vii) Transcranial Doppler examination is not helpful in headache diagnosis. Conclusion: Although many of the examinations described in the present guidelines are of little or no value in the clinical setting, most of the tools, including thermal pain thresholds and transcranial magnetic stimulation, have considerable potential for differential diagnostic evaluation as well as for the further exploration of headache pathophysiology and the effects of pharmacological treatment. [less ▲]

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See detailNeurophysiological tests and neuroimaging procedures in non-acute headache: guidelines and recommendations
Sandrini, G.; Friberg, L.; Janig, W. et al

in European Journal of Neurology (2004), 11(4), 217-224

The use of instrumental examinations in headache patients varies widely. In order to evaluate their usefulness, the most common instrumental procedures were evaluated, on the basis of evidence from the ... [more ▼]

The use of instrumental examinations in headache patients varies widely. In order to evaluate their usefulness, the most common instrumental procedures were evaluated, on the basis of evidence from the literature, by an EFNS Task Force (TF) on neurophysiological tests and imaging procedures in non-acute headache patients. The conclusions of the TF regarding each technique are expressed in the following guidelines for clinical use. 1 Interictal electroencephalography (EEG) is not routinely indicated in the diagnostic evaluation of headache patients. Interictal EEG is. however, indicated if the clinical history suggests a possible diagnosis of epilepsy (differential diagnosis). Ictal EEG could be useful in certain patients suffering from hemiplegic and basilar migraine. 2 Recording of evoked potentials is not recommended for the diagnosis of headache disorders. 3 There is no evidence to justify the recommendation of autonomic tests for the routine clinical examination of headache patients. 4 Manual palpation of pericranial muscles, with standardized palpation pressure, can be recommended for subdividing patient groups but not for diagnosis. Pressure algometry and electromyography (EMG) cannot be recommended as clinical diagnostic tests. 5 In adult and paediatric patients with migraine, with no recent change in attack pattern, no history of seizures, and no other Focal neurological signs or symptoms, the routine use of neuroimaging is not warranted. In patients with atypical headache patterns, a history Of seizures and/or focal neurological signs or symptoms, magnetic resonance imaging (MRI) may be indicated. 6 If attacks can be fully accounted for by the standard headache classification [International Headache Society (IHS)], a positron emission tomography (PET) or single-photon emission computerized tomography (SPECT) and scan will generally be of no further diagnostic value. 7 Nuclear medicine examinations of the cerebral circulation and metabolism can be carried out in Subgroups of headache patients for diagnosis and evaluation of complications, when patients experience unusually severe attacks, or when the quality or severity of attacks has changed. 8 Transcranial Doppler examination is not helpful in headache diagnosis. Although many of the examinations described are of little or no value in the clinical setting, most of the tools have a vast potential for further exploring the pathophysiology of headaches and the effects of pharmacological treatment. [less ▲]

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See detailNeurophysiologie néonatale explicative et illustrée: 3° cycle
Battisti, Oreste ULg

Learning material (2007)

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See detailNeurophysiology and autonomic dysfunction in migraine
Schoenen, Jean ULg; Thomsen, L. L.

in Olesen, J.; Tfelt-Hansen, P.; Welch, K. M. A. (Eds.) The Headaches (1999)

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See detailNeurophysiology of migraines
Schoenen, Jean ULg; Aurora, S.

in Olesen, J.; Goadsby, P.; Ramadan, N. (Eds.) et al The Headaches (2005)

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See detailNeurophysiology of tension-type headache
Schoenen, Jean ULg; Bendtsen, L.

in Olesen, J.; Tfelt-Hansen, P.; Welch, K. M. A. (Eds.) The Headaches (1999)

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See detailNeurophysiology of tension-type headache
Schoenen, Jean ULg; Bendtsen, L.

in Olesen, J.; Goadsby, P.; Ramadan, N. (Eds.) et al The Headaches (2005)

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See detailNeuroplasticité saisonnière chez le canari adulte (Serinus canaria): expression des protéines Doublecortin et Reelin et modulation par les hormones stéroïdes, la photopériode et l'environnement social.
Boseret, Géraldine ULg

Doctoral thesis (2008)

Dans de nombreuses espèces d’oiseaux chanteurs (ou Passériformes), dont fait partie le canari domestique (Serinus canaria), le comportement de chant est produit à la fois pour défendre un territoire ou ... [more ▼]

Dans de nombreuses espèces d’oiseaux chanteurs (ou Passériformes), dont fait partie le canari domestique (Serinus canaria), le comportement de chant est produit à la fois pour défendre un territoire ou attirer un partenaire. Le Système de Conntrôle du Chant est un réseau nerveux central spécialisé, principalement localisé au niveau du télencéphale et associé au contrôle de l’apprentissage, la perception et la production du chant. Ce comportement a été décrit subir la modulation de facteurs externes, tels que la testostérone, la photopériode et les interactions sociales. En parallèle avec le comportement de chant, certains des noyaux appartenant au Système de Contrôle du Chant (HVC, RA et Area X) présentent un phénomène de plasticité saisonnière nerveuse fascinante. Le volume de ces noyaux augmente notamment par espacement des cellules, agrandissement de la taille du neuropile et de l’arborisation dendritique et, dans le cas particulier d’HVC, par incorporation de neurones nouveaux-nés. Nous proposons ici une synthèse de la littérature concernant ce phénomène tout à fait particulier ; en effet, la régénération des neurones du système nerveux central est considérée comme inexistante -ou uniquement limitée à la production de quelques interneurones- chez les mammifères. L’étude de la neuroplasticité chez l’oiseau chanteur constitue dès lors un modèle tout à fait remarquable et offrant des perspectives nouvelles dans l’étude du cerveau des vertébrés. [less ▲]

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See detailNeuroprotection par hypothermie contrôlée dans l'encéphalopathie anoxo-ischémique du nouveau-né
GARSPARD, Valérie ULg; VIELLEVOYE, Renaud ULg; RIGO, Jacques ULg

in Revue Médicale de Liège (2012), 67(4), 186-191

Neonatal hypoxic, ischemic encephalopathy is a major cause of death and neurodevelopmental delay. Brain cooling by mild controlled hypothermia is currently the most promising therapy.

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See detailNeuropsychiatric Inventory data in a Belgian sample of elderly persons with and without dementia
Squelard, Gilles ULg; Missotten, Pierre ULg; Paquay, Louis et al

in Clinical Interventions in Aging (2012), 2(7), 423-430

Background/aims: This study assesses and compares prevalence of psychological and behavioral symptoms in a Belgian sample of people with and without dementia. Methods: A total of 228 persons older than 65 ... [more ▼]

Background/aims: This study assesses and compares prevalence of psychological and behavioral symptoms in a Belgian sample of people with and without dementia. Methods: A total of 228 persons older than 65 years with dementia and a group of 64 non- demented persons were assessed using the Neuropsychiatric Inventory (NPI) in 2004. Results: Within the group without dementia, the most frequent symptoms were depression, agitation, and irritability. Within the group with dementia, the most common symptoms were depression, irritability, apathy, and agitation. Prevalence of delusions (P [less ▲]

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See detailNeuropsychiatric syndromes in dementia - Results from the European Alzheimer Disease Consortium: Part I
Aalten, Pauline; Verhey, Frans R. J.; Boziki, Marina et al

in Dementia & Geriatric Cognitive Disorders (2007), 24(6), 457-463

Background/Aims: The aim of this study was to identify neuropsychiatric subsyndromes of the Neuropsychiatric Inventory in a large sample of outpatients with Alzheimer's disease (AD). Methods: Cross ... [more ▼]

Background/Aims: The aim of this study was to identify neuropsychiatric subsyndromes of the Neuropsychiatric Inventory in a large sample of outpatients with Alzheimer's disease (AD). Methods: Cross-sectional data of 2,354 patients with AD from 12 centres from the European Alzheimer's Disease Consortium were collected. Principal component analysis was used for factor analysis. Results: The results showed the presence of 4 neuropsychiatric subsyndromes: hyperactivity, psychosis, affective symptoms and apathy. The subsyndrome apathy was the most common, occurring in almost 65% of the patients. Conclusion: This large study has provided additional robust evidence for the existence of neuropsychiatric subsyndromes in AD. Copyright (c) 2007 S. Karger AG, Basel. [less ▲]

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See detailNeuropsychological analysis of gait disturbances during dual task in MCI patients
Lekeu, Françoise ULg; Gillain, Sophie ULg; Warzee, Emmanuelle ULg et al

in Journal of Nutrition, Health & Aging (The) (2009), 13(Supp 1),

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See detailNeuropsychological testing for the early diagnosis of Alzheimer's disease
Adam, Stéphane ULg

Conference (2006, November 09)

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