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See detailThe basic pattern of activation in motor and sensory temporal tasks: positron emission tomography data
Lejeune, Helga ULg; Maquet, Pierre ULg; Bonnet, Michel et al

in Neuroscience Letters (1997), 235(1-2), 21-24

Positron emission tomography (PET) data were obtained from subjects performing a synchronization task (target duration 2700 ms). A conjunction analysis was run to identify areas prominently activated both ... [more ▼]

Positron emission tomography (PET) data were obtained from subjects performing a synchronization task (target duration 2700 ms). A conjunction analysis was run to identify areas prominently activated both in this task and in a temporal generalization task (target duration 700 ms) used previously. The common pattern of activation included the right prefrontal, inferior parietal and anterior cingulate cortex, the left putamen and the left cerebellar hemisphere. These areas are assumed to play a major role in time processing, in relation to attention and memory mechanisms. [less ▲]

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See detailCatecholaminergic function and P300 amplitude in major depressive disorders.
Hansenne, Michel ULg; PITCHOT, William ULg; Gonzalez Moreno, Antonio et al

in Electroencephalography and Clinical Neurophysiology (1995)

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See detailContribution à l'étude des effets de l'exposition à des champs magnétiques 50 Hz sur certains paramètres neuropsychologiques et neuroendocriniens
Crasson, Marion ULg; Timsit-Berthier, Martine; Legros, Jean-Jacques ULg

in Psychologie Médicale (1993), 25(13), 1341-1346

Depuis une trentaine d'années, l'exposition des populations industrialisées aux champs électromagnétiques 50/60 Hz n'a cessé de susciter des polémiques concernant ses éventuels effets nocifs. Cette étude ... [more ▼]

Depuis une trentaine d'années, l'exposition des populations industrialisées aux champs électromagnétiques 50/60 Hz n'a cessé de susciter des polémiques concernant ses éventuels effets nocifs. Cette étude préliminaire a été réalisée avec un appareillage original, qui génère des champs magnétiques comparables à ceux rencontrés dans la vie quotidienne. Deux groupes de 10 volontaires en bonne santé ont participé à cette recherche, le premier réellement exposé à un champ d'induction magnétique de 142 microtesla, 50 Hz, pendant une demi-heure, le deuxième exposé de manière simulée. Nos résultats montrent que le champ magnétique n'engendre aucun effet perceptible mais qu'il provoque une légère modification de certains paramètres psychologiques (humeur, attention visuelle). [less ▲]

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See detailLes champs électromagnétiques ELF ont-ils un effet sur la santé? Revue de la littérature
Crasson, Marion ULg; Timsit-Berthier, Martine; Legros, Jean-Jacques ULg

in Psychologie Médicale (1992), 24(11), 1205-1215

De nombreuses études ont été entreprises les dernières décénnies sur les effets des champs électromagnétiques de très basse fréquence (TBF ou ELF). Les rapports publiés sont tantôt optimistes tantôt ... [more ▼]

De nombreuses études ont été entreprises les dernières décénnies sur les effets des champs électromagnétiques de très basse fréquence (TBF ou ELF). Les rapports publiés sont tantôt optimistes tantôt pessimistes. Les auteurs passent en revue les recherches épidémiologiques et expérimentales effectuées chez l'homme avant d'envisager une hypothèse explicative des effets observés, en relation avec le rôle joué par la glande pinéale [less ▲]

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See detailModifications of negative contingent variation (CNV) induced by oxytocin infusion
Timsit-Berthier, Martine; Mantanus, Huguette; Geenen, Vincent ULg et al

in Neurophysiologie Clinique = Clinical Neurophysiology (1988), 18

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See detailBlunted response of growth hormone to clonidine and apomorphine in endogenous depression
Ansseau, Marc ULg; Von Frenckell, Rémi; Cerfontaine, Jean-Luc et al

in British Journal of Psychiatry (1988), 153

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See detailInhibitory influence of oxytocin infusion on contingent negative variation and some memory tasks in normal men
Geenen, Vincent ULg; Adam, Francine; Baro, Vincent et al

in Psychoneuroendocrinology (1988), 13

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See detailNeuroendocrine evaluation of catecholaminergic neurotransmission in mania
Ansseau, Marc ULg; Von Frenckell, Rémi; Cerfontaine, Jean-Luc et al

in Psychiatry Research (1987), 22

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See detailContingent negative variation and efficacy of beta-blocking agents in migraine
Schoenen, Jean ULg; MAERTENS DE NOORDHOUT, Alain ULg; Timsit-Berthier, Martine et al

in Cephalalgia : An International Journal of Headache (1986), 6(4), 229-33

Thirty-three patients with common migraine underwent contingent negative variation (CNV) recordings before receiving prophylactic beta-blocker treatment with either metoprolol (27 patients) or propranolol ... [more ▼]

Thirty-three patients with common migraine underwent contingent negative variation (CNV) recordings before receiving prophylactic beta-blocker treatment with either metoprolol (27 patients) or propranolol (6 patients) at mean daily dosages of 110 mg and 122 mg, respectively. After 3 months the therapeutic efficacy of the beta-blocker was assessed in each patient by means of a global severity score and compared with the initial CNV recordings. The mean clinical improvement was 62%. A significant positive correlation was found between CNV amplitude before prophylaxis and the clinical response to beta-blockers: patients with higher CNV tended to respond better to therapy. Eight of 10 patients with a CNV amplitude higher than -25 microV had a more than 50% reduction of the severity score--that is, a good or excellent response to the beta-blocking agent--whereas only 2 of 9 patients with an amplitude lower than -20 microV had a good response. [less ▲]

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See detailContingent Negative Variation in Headache
MAERTENS DE NOORDHOUT, Alain ULg; Timsit-Berthier, Martine; Timsit, M. et al

in Annals of Neurology (1986), 19(1), 78-80

Contingent negative variation (CNV), an event-related slow cerebral potential, was analyzed in 79 consecutive headache patients. Compared to normal controls (n = 33), CNV did not differ in tension ... [more ▼]

Contingent negative variation (CNV), an event-related slow cerebral potential, was analyzed in 79 consecutive headache patients. Compared to normal controls (n = 33), CNV did not differ in tension headache (n = 21) or in combined headaches with a predominant tension component (n = 13). The mean amplitude of CNV was significantly (p less than 0.001) increased in migraine (n = 29) as well as in combined headache with predominant migraine (n = 16). All migraineurs were studied between attacks and without prophylactic treatment. CNV may be a useful diagnostic test in headache. Its increased amplitude in migraine might reflect central catecholaminergic hyperactivity. [less ▲]

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See detailCNV and dopamine receptor reactivity: correlations with the apomorphine test.
Timsit-Berthier, Martine; Mantanus, Huguette; Marissiaux, Pascale et al

in McCallum, W. C. (Ed.) Cerebral psychophysiology: studies in event-related potentials. (1986)

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See detailBlunted growth hormone response to clonidine and apomorphine challenges in endogenous depression
Ansseau, Marc ULg; von Frenckell, Rémy; Franck, Georges et al

in Shagass, Charles (Ed.) Biological Psychiatry 1985 (1985)

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