Research Topics
| P MaquetSummaryCountry: Belgium Publications
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Detail Information
Publications
Positron emission tomography studies of sleep and sleep disordersP Maquet
Cyclotron Research Centre B 30, University of Liege, Belgium
J Neurol 244:S23-8. 1997..Although data remain incomplete, a variety of sleep disorders, including narcolepsy, fatal familial insomnia and continuous spike-and-wave discharges during slow sleep have been investigated. These results are briefly reviewed...- Regional organisation of brain activity during paradoxical sleep (PS)P Maquet
Cyclotron Research Centre, University of Liege, Belgium
Arch Ital Biol 142:413-9. 2004.... - Brain activation induced by estimation of duration: a PET studyP Maquet
Centre de Recherches du Cyclotron CRC Liège, Belgium
Neuroimage 3:119-26. 1996..The data also suggest that the temporal dimension of a visual stimulus is processed in the same areas as other visual attributes... - Brain mechanisms of sleep: contribution of neuroimaging techniquesP Maquet
Department of Neurology, Cyclotron Research Centre, University of Liege, Belgium
J Psychopharmacol 13:S25-8. 1999.... - Experience-dependent changes in cerebral activation during human REM sleepP Maquet
Cyclotron Research Centre, University of Liege, Belgium
Nat Neurosci 3:831-6. 2000..These results support the hypothesis that memory traces are processed during REM sleep in humans... 
Functional connectivity in the default network during resting state is preserved in a vegetative but not in a brain dead patientM Boly
Cyclotron Research Center, University of Liege, Liege, Belgium
Hum Brain Mapp 30:2393-400. 2009..Future studies are needed to give a full characterization of default network connectivity in the VS patients population...- Bispectral index correlates with regional cerebral blood flow during sleep in distinct cortical and subcortical structures in humansQ Noirhomme
Coma Science Group, Cyclotron Research Centre, University of Liege, Liege, Belgium
Arch Ital Biol 147:51-7. 2009..Thus, although mainly derived from frontal EEG, BIS could represent a wider index of cerebral activity... - Pain and non-pain processing during hypnosis: a thulium-YAG event-related fMRI studyA Vanhaudenhuyse
Coma Science Group, Cyclotron Research Center, University of Liege, Belgium
Neuroimage 47:1047-54. 2009..Finally, we demonstrated hypnosis-related increases in functional connectivity between S1 and distant anterior insular and prefrontal cortices, possibly reflecting top-down modulation... 
Baseline brain activity fluctuations predict somatosensory perception in humansM Boly
Coma Science Group, Cyclotron Research Center, B30, Allee du 6 Aout, Sart Tilman, University of Liege, B 4000 Liege, Belgium
Proc Natl Acad Sci U S A 104:12187-92. 2007..These results suggest that baseline brain-activity fluctuations may profoundly modify our conscious perception of the external world...- Short-term memory and the left intraparietal sulcus: focus of attention? Further evidence from a face short-term memory paradigmS Majerus
Department of Cognitive Sciences, University of Liege, Liege, Belgium
Neuroimage 35:353-67. 2007.... - Intrinsic brain activity in altered states of consciousness: how conscious is the default mode of brain function?M Boly
Coma Science Group, Cyclotron Research Center, University of Liege, Liege, Belgium
Ann N Y Acad Sci 1129:119-29. 2008.... - Hemodynamic cerebral correlates of sleep spindles during human non-rapid eye movement sleepM Schabus
Cyclotron Research Centre, University of Liege, B 4000 Liege, and Department of Psychiatry, Centre Hospitalier Universitaire de Liege, Belgium
Proc Natl Acad Sci U S A 104:13164-9. 2007..The recruitment of partially segregated cortical networks for slow and fast spindles further supports the existence of two spindle types during human non-rapid eye movement sleep, with potentially different functional significance... - The left intraparietal sulcus and verbal short-term memory: focus of attention or serial order?S Majerus
Department of Cognitive Sciences and Experimental Psychology and Cognitive Neuroscience Research Unit, University of Liege, Belgium
Neuroimage 32:880-91. 2006..More generally, they strengthen attention-based accounts of verbal STM... - Spectral quality of light modulates emotional brain responses in humansG Vandewalle
Cyclotron Research Centre, University of Liege, B 4000 Liege, Belgium
Proc Natl Acad Sci U S A 107:19549-54. 2010..These results demonstrate the acute influence of light and its spectral quality on emotional brain processing and identify a unique network merging affective and ambient light information... - A role for sleep in brain plasticityT T Dang-Vu
Cyclotron Research Centre, University of Liege, Belgium
Pediatr Rehabil 9:98-118. 2006..Finally, recent works show the modulation during sleep of cerebral protein synthesis and expression of genes involved in neuronal plasticity... - Cerebral processing in the minimally conscious stateS Laureys
Cyclotron Research Center and Department of Neurology, University of Liege, Sart Tilman B30, 4000 Liege, Belgium
Neurology 63:916-8. 2004..Cognitive potentials showed preserved P300 responses to the patient's own name... - Cortical processing of noxious somatosensory stimuli in the persistent vegetative stateS Laureys
Cyclotron Research Center, University of Liège B30, Department of Neurology, CHU B35, Sart Tilman, 4000 Liege, Belgium
Neuroimage 17:732-41. 2002..However, this activation of primary cortex seems to be isolated and dissociated from higher-order associative cortices... - Memory processing during human sleep as assessed by functional neuroimagingP Maquet
Cyclotron Research Centre, University of Liege, Belgium
Rev Neurol (Paris) 159:6S27-9. 2003..These changes do not involve isolated brain areas but entire macroscopic cerebral networks. These data suggest a role for sleep in the processing of recent memory traces... - Neural networks for short-term memory for order differentiate high and low proficiency bilingualsS Majerus
Department of Cognitive Sciences Cognitive and Behavioural Neuroscience Research Center, University of Liege, Boulevard du Rectorat, B33 4000 Liege, Belgium
Neuroimage 42:1698-713. 2008..The present data suggest that low proficiency bilinguals activate STM networks for order in a less efficient and differentiated way, and this may explain their poorer storage and learning capacity for verbal sequences... - The basic pattern of activation in motor and sensory temporal tasks: positron emission tomography dataH Lejeune
Unité de Psychobiologie des Processus Temporels, Universite de Liege, Belgium
Neurosci Lett 235:21-4. 1997..These areas are assumed to play a major role in time processing, in relation to attention and memory mechanisms... - Neural mechanisms of antinociceptive effects of hypnosisM E Faymonville
Departments of Anesthesiology and Intensive Care Medicine and Neurology, and the Cyclotron Research Centre, University Hospital of Liege, Liege, Belgium
Anesthesiology 92:1257-67. 2000..In this study, we used positron emission tomography in 11 healthy volunteers to identify the brain areas in which hypnosis modulates cerebral responses to a noxious stimulus... - [(18)F]p-MPPF: aA radiolabeled antagonist for the study of 5-HT(1A) receptors with PETA Plenevaux
Cyclotron Research Center, Liege University, Sart Tilman B 30, B 4000 Liege, Belgium
Nucl Med Biol 27:467-71. 2000..This includes chemistry, radiochemistry, animal data (rats, cats, and monkeys) with autoradiography and PET, human data with PET, toxicity, and metabolism... - Striatum forever, despite sequence learning variability: a random effect analysis of PET dataP Peigneux
Centre de Recherches du Cyclotron, Universite de Liege, Belgium
Hum Brain Mapp 10:179-94. 2000.... - [Cerebral functions in brain-damaged patients. What is meant by coma, vegetative state, minimally conscious state, locked-in syndrome and brain death?]M E Faymonville
Department of Anesthesiology and Intensive Care Medicine, CHU Sart Tilman, University of Liege, Belgium
Anaesthesist 53:1195-202. 2004..Finally, we discuss the functional neuroanatomy of these conditions as assessed by positron emission tomography (PET) scanning... - A role for sleep in the processing of memory traces. Contribution of functional neuroimaging in humansP Maquet
Cyclotron Research Centre, , Belgium
Bull Mem Acad R Med Belg 159:167-70. 2004..These changes in activity do not involve isolated brain areas but entire macroscopic cortico-subcortical networks. Taken together, the results suggest an off-line processing of recent memory traces during sleep... - Orienting attention to locations in perceptual versus mental representationsA C Nobre
University of Oxford, Oxford OX1 3UD, UK
J Cogn Neurosci 16:363-73. 2004.... - Experience-dependent changes in cerebral functional connectivity during human rapid eye movement sleepS Laureys
Cyclotron Research Center, , Belgium
Neuroscience 105:521-5. 2001..The optimization of this visuo-motor network during sleep could explain the gain in performance observed during the following day... - Generation of rapid eye movements during paradoxical sleep in humansP Peigneux
Cyclotron Research Center, , Belgium
Neuroimage 14:701-8. 2001..The interest in the presence of PGO waves in humans is outstanding because the cellular processes involved in, or triggered by, PGO waves might favor brain plasticity during PS... - [Evaluation of dreams by the neuropsychological approach. Utility in the characterization of cerebral correlates in oneiric activity by functional neuroimaging]P Maquet
Bull Mem Acad R Med Belg 157:214-7; discussion 218-9. 2002..We propose that neuropsychological analysis of dream content might offer new ways of interpreting neuroimaging maps, as well as specific predictions for future neuroimaging studies... - The role of sleep in learning and memoryP Maquet
Wellcome Department of Cognitive Neurology, University College London, London WC1N 3BG, UK
Science 294:1048-52. 2001..The underlying role of sleep in learning and memory has yet to be precisely characterized... - Activation of the supplementary motor area and of attentional networks during temporal processingF Macar
Centre de Recherche en Neurosciences Cognitives CRNC, CNRS, 13402 Marseille, France
Exp Brain Res 142:475-85. 2002.... - Sleeping brain, learning brain. The role of sleep for memory systemsP Peigneux
Cyclotron Research Center, , , Sart Tilman, , Belgium
Neuroreport 12:A111-24. 2001.... - [Mechanism and function of dreams]P Maquet
Centre de Recherches du Cyclotron, ULg
Bull Mem Acad R Med Belg 159:571-5. 2004..Despite these recent results, the precise neural correlates of dreaming remain elusive. Likewise, the functions of dreams are unknown, although usually related to the functions of sleep itself... - [Dream in the land of paradoxical sleep]E Pire
Universite de Liege, Liege, Belgique
Rev Med Liege 63:452-7. 2008..The last one is of instrumental origin in human beings. It involves prefrontal cortices (executive tasks) and frontal/parietal cortices (attention) in the brain. Some clinical implications of the theory are illustrated... - [Hypnosis and pain perception]A Vanhaudenhuyse
Coma Science Group, Centre de Recherches du Cyclotron, Universite de Liege, Liege, Belgique
Rev Med Liege 63:424-8. 2008..Moreover, clinical studies in certain types of surgery (eg thyroidectomy, mastectomy and plastic surgery) have demonstrated that hypnosis may avoid general anesthesia... - [Functional neuroimaging (fMRI, PET and MEG): what do we measure?]O Gosseries
Coma Science Group, Centre de Recherches du Cyclotron, Universite de Liege, Belgique
Rev Med Liege 63:231-7. 2008..The combination of these different neuroimaging techniques allows studying different components of the brain's activity (e.g., neurovascular coupling, electromagnetic activity) with both a high temporal and spatial resolution... - [Behavioural assessment and functional neuro-imaing in vegetative state patients]A Vanhaudenhuyse
Coma Science Group, Centre de Recherches du Cyclotron, ULg, Liege, Belgique
Rev Med Liege 62:15-20. 2007..Ongoing studies evaluate the prognostic value of functional magnetic resonance imaging studies in these challenging patient populations...