L M Jonkman

Summary

Affiliation: Maastricht University
Country: The Netherlands

Publications

  1. ncbi request reprint Developmental differences in behavioral and event-related brain responses associated with response preparation and inhibition in a go/nogo task
    L M Jonkman
    Faculty of Psychology, Department of Neurocognition, Universiteit Maastricht, Maastricht, The Netherlands
    Psychophysiology 40:752-61. 2003
  2. doi request reprint Reduced error monitoring in children with autism spectrum disorder: an ERP study
    Petra H J M Vlamings
    Department of Neurocognition, Faculty of Psychology, Universiteit Maastricht, The Netherlands
    Eur J Neurosci 28:399-406. 2008
  3. pmc The developmental pattern of stimulus and response interference in a color-object Stroop task: an ERP study
    Ellen M M Jongen
    Department of Cognitive Neuroscience, Section of Biological Developmental Psychology, Maastricht University, Faculty of Psychology, 6200 MD Maastricht, The Netherlands
    BMC Neurosci 9:82. 2008
  4. ncbi request reprint Perceptual and response interference in children with attention-deficit hyperactivity disorder, and the effects of methylphenidate
    L M Jonkman
    Faculty of Pharmacy, Department of Psychopharmacology, Rudolf Magnus Institute for Neurosciences, Utrecht University, The Netherlands
    Psychophysiology 36:419-29. 1999
  5. ncbi request reprint Attentional capacity, a probe ERP study: differences between children with attention-deficit hyperactivity disorder and normal control children and effects of methylphenidate
    L M Jonkman
    Faculty of Pharmacy, Department of Psychopharmacology, Utrecht University, The Netherlands
    Psychophysiology 37:334-46. 2000
  6. ncbi request reprint Methylphenidate improves deficient error evaluation in children with ADHD: an event-related brain potential study
    Lisa M Jonkman
    Faculty of Psychology, Department of Cognitive Neuroscience, Maastricht University, Maastricht, The Netherlands
    Biol Psychol 76:217-29. 2007
  7. ncbi request reprint Dipole source localization of event-related brain activity indicative of an early visual selective attention deficit in ADHD children
    L M Jonkman
    Department of Neurocognition, Faculty of Psychology, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Clin Neurophysiol 115:1537-49. 2004
  8. ncbi request reprint Source localization of the Nogo-N2: a developmental study
    L M Jonkman
    Department of Neurocognition, Faculty of Psychology, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Clin Neurophysiol 118:1069-77. 2007
  9. ncbi request reprint The development of preparation, conflict monitoring and inhibition from early childhood to young adulthood: a Go/Nogo ERP study
    Lisa M Jonkman
    Faculty of Psychology, Dept of Neurocognition, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Brain Res 1097:181-93. 2006
  10. doi request reprint Response inhibition and attention processing in 5- to 7-year-old children with and without symptoms of ADHD: An ERP study
    M Spronk
    Department of Cognitive Neuroscience, Faculty of Psychology, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Clin Neurophysiol 119:2738-52. 2008

Detail Information

Publications17

  1. ncbi request reprint Developmental differences in behavioral and event-related brain responses associated with response preparation and inhibition in a go/nogo task
    L M Jonkman
    Faculty of Psychology, Department of Neurocognition, Universiteit Maastricht, Maastricht, The Netherlands
    Psychophysiology 40:752-61. 2003
    ..Children displayed smaller early CNV amplitudes at fronto-central locations, but mature late CNV. The smaller early CNV activity might indicate inefficient cue-orientation processes caused by incomplete frontal lobe development...
  2. doi request reprint Reduced error monitoring in children with autism spectrum disorder: an ERP study
    Petra H J M Vlamings
    Department of Neurocognition, Faculty of Psychology, Universiteit Maastricht, The Netherlands
    Eur J Neurosci 28:399-406. 2008
    ..This relates well to the perseverative behaviour that is seen in children with ASD. We discuss these results in terms of a general deficit in self-monitoring, underlying social disturbance in ASD and the involvement of the ACC...
  3. pmc The developmental pattern of stimulus and response interference in a color-object Stroop task: an ERP study
    Ellen M M Jongen
    Department of Cognitive Neuroscience, Section of Biological Developmental Psychology, Maastricht University, Faculty of Psychology, 6200 MD Maastricht, The Netherlands
    BMC Neurosci 9:82. 2008
    ..Event-related potentials (ERPs) were measured to study the temporal dynamics of these processes of interference...
  4. ncbi request reprint Perceptual and response interference in children with attention-deficit hyperactivity disorder, and the effects of methylphenidate
    L M Jonkman
    Faculty of Pharmacy, Department of Psychopharmacology, Rudolf Magnus Institute for Neurosciences, Utrecht University, The Netherlands
    Psychophysiology 36:419-29. 1999
    ..The conclusion that methylphenidate did not influence response processes contrasts sharply with findings reported by authors using the Sternberg memory search task...
  5. ncbi request reprint Attentional capacity, a probe ERP study: differences between children with attention-deficit hyperactivity disorder and normal control children and effects of methylphenidate
    L M Jonkman
    Faculty of Pharmacy, Department of Psychopharmacology, Utrecht University, The Netherlands
    Psychophysiology 37:334-46. 2000
    ..Furthermore, methylphenidate had enhancing effects on performance and ERPs, but did not improve the capacity-allocation deficit...
  6. ncbi request reprint Methylphenidate improves deficient error evaluation in children with ADHD: an event-related brain potential study
    Lisa M Jonkman
    Faculty of Psychology, Department of Cognitive Neuroscience, Maastricht University, Maastricht, The Netherlands
    Biol Psychol 76:217-29. 2007
    ..Methylphenidate's ameliorating effects might be established through its influence on brain networks including posterior (parietal) cortex, enabling children with ADHD to allocate more attention to significant events...
  7. ncbi request reprint Dipole source localization of event-related brain activity indicative of an early visual selective attention deficit in ADHD children
    L M Jonkman
    Department of Neurocognition, Faculty of Psychology, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Clin Neurophysiol 115:1537-49. 2004
    ..Furthermore, brain source localization was applied to identify brain areas underlying possible deficits in selective visual processing in ADHD children...
  8. ncbi request reprint Source localization of the Nogo-N2: a developmental study
    L M Jonkman
    Department of Neurocognition, Faculty of Psychology, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Clin Neurophysiol 118:1069-77. 2007
    ..The aim of the present study was to investigate whether similar neural sources are involved in generating Nogo-N2 scalp topography in children and adults...
  9. ncbi request reprint The development of preparation, conflict monitoring and inhibition from early childhood to young adulthood: a Go/Nogo ERP study
    Lisa M Jonkman
    Faculty of Psychology, Dept of Neurocognition, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Brain Res 1097:181-93. 2006
    ..On the other hand, young children's reduced preparatory CNV activity was interpreted as a sign of reduced response priming caused by yet immature fronto-parietal networks involved in motor regulation...
  10. doi request reprint Response inhibition and attention processing in 5- to 7-year-old children with and without symptoms of ADHD: An ERP study
    M Spronk
    Department of Cognitive Neuroscience, Faculty of Psychology, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Clin Neurophysiol 119:2738-52. 2008
    ..Response inhibition and attention processing in 5- to 7-year-old children with or without symptoms of attention-deficit hyperactivity disorder (ADHD) were examined...
  11. ncbi request reprint Differences in plasma concentrations of the D- and L-threo methylphenidate enantiomers in responding and non-responding children with attention-deficit hyperactivity disorder
    L M Jonkman
    Faculty of Social Sciences, Department of Psychonomics, Utrecht University, The Netherlands
    Psychiatry Res 78:115-8. 1998
    ..Non-responders showed significantly higher plasma concentrations of both D- and L-threo MPH enantiomers...
  12. ncbi request reprint Attention deficit and impulsivity: selecting, shifting, and stopping
    J L Kenemans
    Department of Psychonomics and Psychopharmacology, Utrecht University, Heidelberglaan 2, 3584 CS Utrecht, The Netherlands
    Int J Psychophysiol 58:59-70. 2005
    ..In sum, direct reflections of brain activity suggest that mechanisms of expectation and attention, rather than of response bias or inhibitory control, govern behavioral manifestations of impulsivity...
  13. ncbi request reprint Carbohydrate intake improves cognitive performance of stress-prone individuals under controllable laboratory stress
    C R Markus
    Department of Psychonomics, Utrecht University, The Netherlands
    Br J Nutr 82:457-67. 1999
    ....
  14. ncbi request reprint A combined neurophysiological and behavioural study into the stimulating effects of fexofenadine on performance
    Eef L Theunissen
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Faculty of Psychology, Maastricht University, Maastricht, The Netherlands
    J Psychopharmacol 20:496-505. 2006
    ....
  15. ncbi request reprint Evening intake of alpha-lactalbumin increases plasma tryptophan availability and improves morning alertness and brain measures of attention
    C Rob Markus
    Department of Experimental Psychology and the Biomedical Center, University of Maastricht, Maastricht, Netherlands
    Am J Clin Nutr 81:1026-33. 2005
    ..Brain uptake of the serotonin precursor tryptophan is dependent on nutrients that influence the availability of tryptophan via a change in the ratio of plasma tryptophan to the sum of the other large neutral amino acids (Trp:LNAA)...
  16. ncbi request reprint Attention switching after dietary brain 5-HT challenge in high impulsive subjects
    C Rob Markus
    Department of Experimental Psychology, University of Maastricht, The Netherlands
    J Psychopharmacol 21:700-8. 2007
    ....
  17. ncbi request reprint Sources of auditory selective attention and the effects of methylphenidate in children with attention-deficit/hyperactivity disorder
    Chantal Kemner
    Department of Child and Adolescent Psychiatry, University Medical Center Utrecht, The Netherlands
    Biol Psychiatry 55:776-8. 2004
    ....