A Dagher

Summary

Affiliation: McGill University
Country: Canada

Publications

  1. doi request reprint The neurobiology of appetite: hunger as addiction
    A Dagher
    Department of Neurology, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
    Int J Obes (Lond) 33:S30-3. 2009
  2. doi request reprint From anticipation to action, the role of dopamine in perceptual decision making: an fMRI-tyrosine depletion study
    Atsuko Nagano-Saito
    Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
    J Neurophysiol 108:501-12. 2012
  3. doi request reprint Functional brain imaging of appetite
    Alain Dagher
    Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, Quebec, H3A 2B4, Canada
    Trends Endocrinol Metab 23:250-60. 2012
  4. pmc An acute psychosocial stress enhances the neural response to smoking cues
    Alain Dagher
    Montreal Neurological Institute, McGill University, 3801 University St, Montreal QC, Canada H3A 2B4
    Brain Res 1293:40-8. 2009
  5. doi request reprint Personality, addiction, dopamine: insights from Parkinson's disease
    Alain Dagher
    Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, QC H3A 2B4, Canada
    Neuron 61:502-10. 2009
  6. doi request reprint Neural substrates of cognitive skill learning in Parkinson's disease
    M H Beauchamp
    Departement de Psychologie, Universite de Montreal, C P 6128 Succursale Centre Ville, Montreal, Que, Canada
    Brain Cogn 68:134-43. 2008
  7. ncbi request reprint Stimulation of dopa decarboxylase activity in striatum of healthy human brain secondary to NMDA receptor antagonism with a low dose of amantadine
    P Deep
    McConnell Brain Imaging Center, Montreal Neurological Institute, 3801 University St, Montreal, Quebec, Canada H3A 2B4
    Synapse 34:313-8. 1999
  8. ncbi request reprint A neural model of working memory processes in normal subjects, Parkinson's disease and schizophrenia for fMRI design and predictions
    O Monchi
    McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Que, Canada
    Neural Netw 13:953-73. 2000
  9. ncbi request reprint Pharmacokinetics of radiotracers in human plasma during positron emission tomography
    P Cumming
    McConnell Brain Imaging Centre, Montreal Neurological Institute, Montreal, Canada
    Synapse 34:124-34. 1999
  10. ncbi request reprint Wisconsin Card Sorting revisited: distinct neural circuits participating in different stages of the task identified by event-related functional magnetic resonance imaging
    O Monchi
    McConnell Brain Imaging Centre and Cognitive Neuroscience Unit, Montreal Neurological Institute, McGill University, , , H3A 2B4 Canada
    J Neurosci 21:7733-41. 2001

Collaborators

Detail Information

Publications17

  1. doi request reprint The neurobiology of appetite: hunger as addiction
    A Dagher
    Department of Neurology, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
    Int J Obes (Lond) 33:S30-3. 2009
    ..In this overview and the associated reviews, the behavioral, genetic and neural factors that promote over-eating in animals and humans are discussed...
  2. doi request reprint From anticipation to action, the role of dopamine in perceptual decision making: an fMRI-tyrosine depletion study
    Atsuko Nagano-Saito
    Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
    J Neurophysiol 108:501-12. 2012
    ....
  3. doi request reprint Functional brain imaging of appetite
    Alain Dagher
    Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, Quebec, H3A 2B4, Canada
    Trends Endocrinol Metab 23:250-60. 2012
    ..This article reviews the recent use of functional brain imaging in humans to study the neural control of appetite, and how the neural systems involved may cause vulnerability to overeating in the obesogenic environment...
  4. pmc An acute psychosocial stress enhances the neural response to smoking cues
    Alain Dagher
    Montreal Neurological Institute, McGill University, 3801 University St, Montreal QC, Canada H3A 2B4
    Brain Res 1293:40-8. 2009
    ..Stress-induced limbic deactivation predicted subsequent neural cue-reactivity. We suggest that stress increases the incentive salience of drug cues...
  5. doi request reprint Personality, addiction, dopamine: insights from Parkinson's disease
    Alain Dagher
    Montreal Neurological Institute, McGill University, 3801 University Street, Montreal, QC H3A 2B4, Canada
    Neuron 61:502-10. 2009
    ..We describe the clinical phenomena and attempt to relate them to current models of learning and addiction. We conclude that persistently elevated dopaminergic stimulation promotes the development and maintenance of addictive behaviors...
  6. doi request reprint Neural substrates of cognitive skill learning in Parkinson's disease
    M H Beauchamp
    Departement de Psychologie, Universite de Montreal, C P 6128 Succursale Centre Ville, Montreal, Que, Canada
    Brain Cogn 68:134-43. 2008
    ..These findings reflect a shift to the explicit memory system in PD patients, enabling them to learn this cognitive skill, which is normally acquired by control subjects using implicit learning strategies and frontostriatal circuitry...
  7. ncbi request reprint Stimulation of dopa decarboxylase activity in striatum of healthy human brain secondary to NMDA receptor antagonism with a low dose of amantadine
    P Deep
    McConnell Brain Imaging Center, Montreal Neurological Institute, 3801 University St, Montreal, Quebec, Canada H3A 2B4
    Synapse 34:313-8. 1999
    ..Nonetheless, PET studies in parkinsonian patients using higher, clinically effective doses of amantadine may reveal more pronounced enhancements of cerebral DDC activity...
  8. ncbi request reprint A neural model of working memory processes in normal subjects, Parkinson's disease and schizophrenia for fMRI design and predictions
    O Monchi
    McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Que, Canada
    Neural Netw 13:953-73. 2000
    ..A specific event-related functional magnetic resonance imaging study was elaborated to test some of those predictions...
  9. ncbi request reprint Pharmacokinetics of radiotracers in human plasma during positron emission tomography
    P Cumming
    McConnell Brain Imaging Centre, Montreal Neurological Institute, Montreal, Canada
    Synapse 34:124-34. 1999
    ..Drug-drug interactions were revealed in subjects treated with specific pharmacological agents prior to tracer administration...
  10. ncbi request reprint Wisconsin Card Sorting revisited: distinct neural circuits participating in different stages of the task identified by event-related functional magnetic resonance imaging
    O Monchi
    McConnell Brain Imaging Centre and Cognitive Neuroscience Unit, Montreal Neurological Institute, McGill University, , , H3A 2B4 Canada
    J Neurosci 21:7733-41. 2001
    ..The putamen exhibited increased activity while matching after negative feedback but not while matching after positive feedback, implying greater involvement during novel than routine actions...
  11. ncbi request reprint Mapping the network for planning: a correlational PET activation study with the Tower of London task
    A Dagher
    Medical Research Council Cyclotron Unit, Hammersmith Hospital, Montreal, Canada
    Brain 122:1973-87. 1999
    ..We propose that dorsolateral prefrontal, lateral premotor, anterior cingulate and caudate areas form a network for the planning of movement that interacts with brain areas primarily involved in visual processing and movement execution...
  12. doi request reprint Food and drug cues activate similar brain regions: a meta-analysis of functional MRI studies
    D W Tang
    Department of Psychology, McGill University, Montreal Neurological Institute, Montreal, QC, Canada
    Physiol Behav 106:317-24. 2012
    ..There is significant overlap in brain regions responding to conditioned cues associated with natural and drug rewards...
  13. ncbi request reprint Repetitive transcranial magnetic stimulation of the human prefrontal cortex induces dopamine release in the caudate nucleus
    A P Strafella
    Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada H3A 2B4
    J Neurosci 21:RC157. 2001
    ..This finding has implications for the therapeutic and research use of rTMS in neurological and psychiatric disorders...
  14. ncbi request reprint The role of the striatum and hippocampus in planning: a PET activation study in Parkinson's disease
    A Dagher
    MRC Clinical Sciences Centre, Imperial College School of Medicine, Hammersmith Hospital, London, UK
    Brain 124:1020-32. 2001
    ..This could represent a shift to the declarative memory system in Parkinson's disease during performance of the TOL task, possibly resulting from insufficient working memory capacity within the frontostriatal system...
  15. ncbi request reprint Reduced dopamine D1 receptor binding in the ventral striatum of cigarette smokers
    A Dagher
    McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montreal, Canada
    Synapse 42:48-53. 2001
    ..Such a hypodopaminergic state may play an important role in sustaining nicotine-seeking behavior. Alternatively, an inherited reduction in dopamine receptors in the striatum may be associated with an increased risk of addictive behavior...
  16. doi request reprint Critical involvement of the thalamus and precuneus during restoration of consciousness with physostigmine in humans during propofol anaesthesia: a positron emission tomography study
    G Xie
    Department of Anesthesia, McGill University, Montreal, QC, Canada H3A 1A2
    Br J Anaesth 106:548-57. 2011
    ..However, functional imaging changes may result from drug effects unrelated to hypnosis. Establishing a causal link with loss of consciousness is thus difficult...
  17. ncbi request reprint Dynamic functional changes associated with cognitive skill learning of an adapted version of the Tower of London task
    M H Beauchamp
    Universite de Montreal, Montreal, Quebec, Canada
    Neuroimage 20:1649-60. 2003
    ..In sum, the results lend further support to the idea that the learning of cognitive skills requiring planning and working memory capacities is mediated through a fronto-striatal network...