W J Riedel

Summary

Affiliation: Maastricht University
Country: The Netherlands

Publications

  1. ncbi request reprint Tryptophan depletion in normal volunteers produces selective impairment in memory consolidation
    W J Riedel
    Department of Psychiatry and Neuropsychology, Brain and Behaviour Institute, European Graduate School for Neurosciences, Maastricht University, The Netherlands
    Psychopharmacology (Berl) 141:362-9. 1999
  2. ncbi request reprint Tryptophan modulation and cognition
    Wim J Riedel
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Universiteit Maastricht, PO Box 616, 6200 MD Maastricht, The Netherlands
    Adv Exp Med Biol 527:207-13. 2003
  3. ncbi request reprint Nutrients, age and cognitive function
    W J Riedel
    Experimental Psychopharmacology Unit, Maastricht University, The Netherlands
    Curr Opin Clin Nutr Metab Care 1:579-85. 1998
  4. ncbi request reprint Tryptophan depletion impairs memory consolidation but improves focussed attention in healthy young volunteers
    J A Schmitt
    Department of Psychiatry and Neuropsychology, Brain and Behavior Institute, European Graduate School for Neurosciences, Maastricht University, The Netherlands
    J Psychopharmacol 14:21-9. 2000
  5. doi request reprint 40-Hz steady state response in Alzheimer's disease and mild cognitive impairment
    J A van Deursen
    Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University, The Netherlands
    Neurobiol Aging 32:24-30. 2011
  6. pmc Histamine H1 receptor blockade predominantly impairs sensory processes in human sensorimotor performance
    P van Ruitenbeek
    Experimental Psychopharmacology Unit, Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
    Br J Pharmacol 157:76-85. 2009
  7. doi request reprint Memory in humans is unaffected by central H1-antagonism, while objectively and subjectively measured sedation is increased
    P van Ruitenbeek
    Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands
    Eur Neuropsychopharmacol 20:226-35. 2010
  8. ncbi request reprint The influence of soy-derived phosphatidylserine on cognition in age-associated memory impairment
    B L Jorissen
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Department of Psychiatry and Neuropsychology, Maastricht, The Netherlands
    Nutr Neurosci 4:121-34. 2001
  9. ncbi request reprint Pronounced cognitive deficits following an intravenous L-tryptophan challenge in first-degree relatives of bipolar patients compared to healthy controls
    S Sobczak
    Brain and Behavior Institute, Department of Psychiatry and Neuropsychology, Universiteit Maastricht, The Netherlands
    Neuropsychopharmacology 28:711-9. 2003
  10. doi request reprint Memory impairments in humans after acute tryptophan depletion using a novel gelatin-based protein drink
    A Sambeth
    Faculty of Psychology and Neuroscience, Department of Neuropsychology and Psychopharmacology, Maastricht University, Maastricht, The Netherlands
    J Psychopharmacol 23:56-64. 2009

Collaborators

Detail Information

Publications48

  1. ncbi request reprint Tryptophan depletion in normal volunteers produces selective impairment in memory consolidation
    W J Riedel
    Department of Psychiatry and Neuropsychology, Brain and Behaviour Institute, European Graduate School for Neurosciences, Maastricht University, The Netherlands
    Psychopharmacology (Berl) 141:362-9. 1999
    ..On the basis of these results, it is concluded that tryptophan depletion specifically impairs long-term memory formation, presumably as a result of an acute decrease in 5-HT turnover in the brain...
  2. ncbi request reprint Tryptophan modulation and cognition
    Wim J Riedel
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Universiteit Maastricht, PO Box 616, 6200 MD Maastricht, The Netherlands
    Adv Exp Med Biol 527:207-13. 2003
    ..We conclude that experimental manipulations of tryptophan mediate temporal and frontal cognitive functions such as memory consolidation and working memory respectively, in an opposite manner...
  3. ncbi request reprint Nutrients, age and cognitive function
    W J Riedel
    Experimental Psychopharmacology Unit, Maastricht University, The Netherlands
    Curr Opin Clin Nutr Metab Care 1:579-85. 1998
    ..The effects of nutritional supplements are modest but do not seem to be very different from those of medicinal or investigational cognition-enhancing or anti-dementia drugs...
  4. ncbi request reprint Tryptophan depletion impairs memory consolidation but improves focussed attention in healthy young volunteers
    J A Schmitt
    Department of Psychiatry and Neuropsychology, Brain and Behavior Institute, European Graduate School for Neurosciences, Maastricht University, The Netherlands
    J Psychopharmacol 14:21-9. 2000
    ..Improvement of specific cognitive processes by lowered 5-HT function may be linked to the removal of inhibitory actions of 5-HT in the cortex...
  5. doi request reprint 40-Hz steady state response in Alzheimer's disease and mild cognitive impairment
    J A van Deursen
    Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University, The Netherlands
    Neurobiol Aging 32:24-30. 2011
    ..Furthermore a moderate correlation between 40-Hz SSR power and cognitive performance as measured by ADAS-cog was shown. The results suggest that 40-Hz SSR might be an interesting candidate marker of disease progression...
  6. pmc Histamine H1 receptor blockade predominantly impairs sensory processes in human sensorimotor performance
    P van Ruitenbeek
    Experimental Psychopharmacology Unit, Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
    Br J Pharmacol 157:76-85. 2009
    ..Better knowledge about the cognitive deficits associated with histamine dysfunction can contribute to better treatment of clinical disorders in which histamine hypofunction may be a contributing factor, such as in schizophrenia...
  7. doi request reprint Memory in humans is unaffected by central H1-antagonism, while objectively and subjectively measured sedation is increased
    P van Ruitenbeek
    Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands
    Eur Neuropsychopharmacol 20:226-35. 2010
    ..The active control lorazepam impaired episodic- and working memory performance and increased sedation, while dexchlorpheniramine only increased sedation...
  8. ncbi request reprint The influence of soy-derived phosphatidylserine on cognition in age-associated memory impairment
    B L Jorissen
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Department of Psychiatry and Neuropsychology, Maastricht, The Netherlands
    Nutr Neurosci 4:121-34. 2001
    ..There were also no significant interactions between treatment and 'severity of memory complaints'. In conclusion, a daily supplement of S-PS does not affect memory or other cognitive functions in older individuals with memory complaints...
  9. ncbi request reprint Pronounced cognitive deficits following an intravenous L-tryptophan challenge in first-degree relatives of bipolar patients compared to healthy controls
    S Sobczak
    Brain and Behavior Institute, Department of Psychiatry and Neuropsychology, Universiteit Maastricht, The Netherlands
    Neuropsychopharmacology 28:711-9. 2003
    ..In conclusions, cognitive deficits in FH following Trp may reflect a central 5-HT vulnerability in frontal brain areas. Independent of Trp, cognitive deficits in FH provide evidence for a trait marker for BD...
  10. doi request reprint Memory impairments in humans after acute tryptophan depletion using a novel gelatin-based protein drink
    A Sambeth
    Faculty of Psychology and Neuroscience, Department of Neuropsychology and Psychopharmacology, Maastricht University, Maastricht, The Netherlands
    J Psychopharmacol 23:56-64. 2009
    ..Our study provides further evidence that impairment in long-term episodic and elementary spatial memory after ATD is related to lowered tryptophan levels in plasma...
  11. pmc Histamine H1 receptor antagonist cetirizine impairs working memory processing speed, but not episodic memory
    P van Ruitenbeek
    Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands
    Br J Pharmacol 161:456-66. 2010
    ..The aim of the present study was to determine whether cetirizine can be used as a tool to model cognitive deficits associated with histaminergic hypofunction...
  12. doi request reprint Higher, faster, stronger: the effect of dynamic stimuli on response preparation and CNV amplitude
    A M W Linssen
    Dept Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, PO Box 616, 6200 MD, Maastricht, The Netherlands
    Behav Brain Res 237:308-12. 2013
    ..In conclusion, the dynamic task promotes response preparation. The new tasks may be especially valuable in groups with attention difficulties (i.e. elderly or ADHD patients)...
  13. ncbi request reprint Lower high-density lipoprotein cholesterol and increased omega-6 polyunsaturated fatty acids in first-degree relatives of bipolar patients
    S Sobczak
    Institute Brain and Behavior, Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
    Psychol Med 34:103-12. 2004
    ..v. tryptophan challenge or mood...
  14. pmc Increased EEG gamma band activity in Alzheimer's disease and mild cognitive impairment
    J A van Deursen
    Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University, P O Box 616, 6200 Maastricht, The Netherlands
    J Neural Transm 115:1301-11. 2008
    ..The results suggest that elevated GBP is a reproducible and sensitive measure for cognitive dysfunction in AD in comparison with MCI and controls...
  15. ncbi request reprint Effects of acute tryptophan depletion on mood and cortisol release in first-degree relatives of type I and type II bipolar patients and healthy matched controls
    S Sobczak
    Brain and Behaviour Institute, Department of Psychiatry and Neuropsychology, Universiteit, Maastricht, The Netherlands
    Neuropsychopharmacology 27:834-42. 2002
    ..ATD was followed by a decrease in cortisol level in both FH subgroups, but not in the controls. The results suggest serotonergic vulnerability that affected mood in FH II subjects and cortisol release in both FH I and FH II subjects...
  16. pmc Acute tryptophan depletion affects brain-gut responses in irritable bowel syndrome patients and controls
    T O C Kilkens
    Maastricht University, Department of Psychiatry and Neuropsychology, Dr Tanslaan 10, 6229 ET, Maastricht, The Netherlands
    Gut 53:1794-800. 2004
    ..Serotonin, a key denominator of the brain-gut axis, is involved in the regulation of gastrointestinal motility, secretion, and perception as well as cognition and mood...
  17. ncbi request reprint Dissociable hormonal, cognitive and mood responses to neuroendocrine challenge: evidence for receptor-specific serotonergic dysregulation in depressed mood
    W J Riedel
    Brain and Behaviour Institute, Department of Psychiatry and Neuropsychology, University Hospital, Maastricht, P O Box 616, 6200 MD Maastricht, The Netherlands
    Neuropsychopharmacology 26:358-67. 2002
    ....
  18. ncbi request reprint Cognition following acute tryptophan depletion: difference between first-degree relatives of bipolar disorder patients and matched healthy control volunteers
    S Sobczak
    Brain and Behaviour Institute, Department of Psychiatry and Neuropsychology, Universiteit Maastricht, The Netherlands
    Psychol Med 32:503-15. 2002
    ..Serotonergic circuits have been proposed to mediate cognitive processes, particularly learning and memory. Cognitive impairment is often seen in bipolar disorders in relation to a possible lowered serotonergic turnover...
  19. pmc Methylphenidate produces selective enhancement of declarative memory consolidation in healthy volunteers
    A M W Linssen
    Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands
    Psychopharmacology (Berl) 221:611-9. 2012
    ..There are also observations of methylphenidate-induced cognition enhancement in healthy adults, although studies in this area are relatively sparse. We assessed the possible memory-enhancing properties of methylphenidate...
  20. doi request reprint Response speed, contingent negative variation and P300 in Alzheimer's disease and MCI
    J A van Deursen
    Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University, P O Box 616, 6200 MD, Maastricht, The Netherlands
    Brain Cogn 69:592-9. 2009
    ..Insight into the psycho-physiological underpinnings of slowed RS can be provided by measuring the associated event-related potentials (ERP)...
  21. ncbi request reprint Memory functions and focussed attention in middle-aged and elderly subjects are unaffected by a low, acute dose of caffeine
    J A J Schmitt
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Universiteit Maastricht, Maastricht, The Netherlands
    J Nutr Health Aging 7:301-3. 2003
    ..It is proposed that in middle-aged and elderly subjects cognitive effects may occur predominantly at higher caffeine dosages...
  22. ncbi request reprint Non-serotonergic pharmacological profiles and associated cognitive effects of serotonin reuptake inhibitors
    J A Schmitt
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Universiteit Maastricht, The Netherlands
    J Psychopharmacol 15:173-9. 2001
    ..The impairing and facilitating cognitive effects of paroxetine and sertraline, respectively, may be more pronounced in the elderly depressed patient...
  23. ncbi request reprint Mood congruent memory bias induced by tryptophan depletion
    T Klaassen
    Brain and Behaviour Institute, Department of Psychiatry and Neuropsychology Maastricht University, The Netherlands
    Psychol Med 32:167-72. 2002
    ....
  24. ncbi request reprint Dissociable effects of a single dose of ecstasy (MDMA) on psychomotor skills and attentional performance
    C T J Lamers
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Maastricht University, Maastricht, The Netherlands
    J Psychopharmacol 17:379-87. 2003
    ..There was no effect of MDMA on visual search, planning or retrieval from semantic memory...
  25. ncbi request reprint Nutrients, age and cognition
    B L Jorissen
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Universiteit Maastricht, Maastricht, The Netherlands
    Clin Nutr 21:89-95. 2002
    ....
  26. doi request reprint Cognitive domains affected by histamine H(1)-antagonism in humans: a literature review
    P van Ruitenbeek
    Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands, Maastricht, The Netherlands
    Brain Res Rev 64:263-82. 2010
    ..The importance of the sensitive cognitive domains to histaminergic dysfunction, as well as the relation between histamine related decrease in arousal and task performance deserve further research...
  27. ncbi request reprint Safety of soy-derived phosphatidylserine in elderly people
    B L Jorissen
    Department of Psychiatry and Neuropsychology, Brain and Behaviour Institute, Universiteit Maastricht, The Netherlands
    Nutr Neurosci 5:337-43. 2002
    ..In conclusion, soy derived PS is a safe nutritional supplement for older persons if taken up to a dosage of 200 mg three times daily...
  28. pmc Effects of L-histidine depletion and L-tyrosine/L-phenylalanine depletion on sensory and motor processes in healthy volunteers
    P van Ruitenbeek
    Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
    Br J Pharmacol 157:92-103. 2009
    ..Here we evaluated whether depletion of L-histidine, the precursor of histamine, was effective in altering measures associated with histamine in humans and the behavioural and electrophysiological (event-related-potentials) effects...
  29. ncbi request reprint Serotonergic vulnerability and depression: assumptions, experimental evidence and implications
    L A W Jans
    Faculty of Psychology, Department of Neurocognition, Maastricht University, Maastricht, The Netherlands
    Mol Psychiatry 12:522-43. 2007
    ....
  30. ncbi request reprint Differential residual effects of zaleplon and zopiclone on actual driving: a comparison with a low dose of alcohol
    Annemiek Vermeeren
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Maastricht University, The Netherlands
    Sleep 25:224-31. 2002
    ..To compare residual effects of zaleplon 10 mg, zopiclone 7.5 mg, and placebo, and a social dose of alcohol on car driving, memory, and psychomotor performance...
  31. ncbi request reprint Modulation of the critical flicker fusion effects of serotonin reuptake inhibitors by concomitant pupillary changes
    Jeroen A J Schmitt
    Department of Psychiatry and Neuropsychology, Universiteit Maastricht, Maastricht, The Netherlands
    Psychopharmacology (Berl) 160:381-6. 2002
    ..However, such an interpretation may be questioned since CFF elevations may also be due to SSRI-induced increases in pupil diameter...
  32. ncbi request reprint Cholinergic drugs affect novel object recognition in rats: relation with hippocampal EEG?
    Anke Sambeth
    Faculty of Psychology and Brain and Behavior Institute, Maastricht University, The Netherlands
    Eur J Pharmacol 572:151-9. 2007
    ..However, there was a clear dissociation between memory performance and EEG after combined treatment with drugs, which makes additional research where EEG and performance measures are co-registered imperative...
  33. ncbi request reprint Sex differences in the effect of acute tryptophan depletion on declarative episodic memory: a pooled analysis of nine studies
    Anke Sambeth
    Department of Neurocognition, Faculty of Psychology, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Neurosci Biobehav Rev 31:516-29. 2007
    ..The findings provide further support for a critical role of serotonin in declarative episodic memory...
  34. ncbi request reprint Tryptophan, mood, and cognitive function
    Wim J Riedel
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Universiteit Maastricht, The Netherlands
    Brain Behav Immun 16:581-9. 2002
    ..In conclusion, ATD is a model for impairment of memory, next to being a model of mood disorders in vulnerable subjects. Moreover, ATD could be used as a challenge to demonstrate individual vulnerability of the serotonergic system...
  35. ncbi request reprint Neuroendocrine response to meta-chlorophenylpiperazine and ipsapirone in relation to anxiety and aggression
    Tineke Klaassen
    Departments of Psychiatry and Neuropsychology, University of Maastricht, PO Box 616, 6200 MD, Maastricht, The Netherlands
    Psychiatry Res 113:29-40. 2002
    ..Thus, in subjects with depressed mood, high levels of anxiety suggest a higher probability of 5-HT(2C) disturbances...
  36. ncbi request reprint Cognitive changes after acute tryptophan depletion: what can they tell us?
    Wim J Riedel
    Psychol Med 34:3-8. 2004
  37. ncbi request reprint Additional dopamine reuptake inhibition attenuates vigilance impairment induced by serotonin reuptake inhibition in man
    Jeroen A J Schmitt
    Department of Psychiatry and Neuropsychology, Brain and Behaviour Institute, Universiteit Maastricht, The Netherlands
    J Psychopharmacol 16:207-14. 2002
    ..It is concluded that a serotonergically mediated reduction of dopamine activity plays an important role in the reduction of human vigilance following SSRI administration...
  38. ncbi request reprint Plasma, oral fluid and sweat wipe ecstasy concentrations in controlled and real life conditions
    Nele Samyn
    Drugs and Toxicology, Section Toxicology, National Institute of Criminalistics and Criminology, Vilvoordsesteenweg 100, 1120 Brussels, Belgium
    Forensic Sci Int 128:90-7. 2002
    ..Urine screening revealed the presence of combinations such as MDMA, MDEA, amph, cannabis, cocaine, LSD and psilocine in the multiple-drug condition...
  39. ncbi request reprint Specific serotonergic reuptake inhibition impairs vigilance performance acutely and after subchronic treatment
    Wim J Riedel
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Faculty of Psychology, Universiteit Maastricht, The Netherlands
    J Psychopharmacol 19:12-20. 2005
    ..Because citalopram is the most specific SSRI showing this effect, it is concluded that the SSRI-induced decrement of vigilance performance is specifically associated with serotonergic reuptake inhibition...
  40. ncbi request reprint The effects of high-dose and low-dose tryptophan depletion on mood and cognitive functions of remitted depressed patients
    Linda Booij
    Department of Psychology, Leiden University, Leiden, The Netherlands and Psychomedical Center Parnassia, The Hague, The Netherlands
    J Psychopharmacol 19:267-75. 2005
    ..The comparison of the effects of high-dose and low-dose ATD is useful for those studies aiming to investigate the relationships among 5-HT, mood and cognition...
  41. ncbi request reprint Acute tryptophan depletion in depressed patients treated with a selective serotonin-noradrenalin reuptake inhibitor: augmentation of antidepressant response?
    Linda Booij
    Department of Psychology, Leiden University, Wassenaarseweg 52, Leiden 2333 AK, The Netherlands
    J Affect Disord 86:305-11. 2005
    ..In unmedicated depressed patients, ATD has no immediate effect on symptoms. The effects in currently depressed medicated patients have not been investigated...
  42. ncbi request reprint Memory function in women with premenstrual complaints and the effect of serotonergic stimulation by acute administration of an alpha-lactalbumin protein
    Jeroen A J Schmitt
    Experimental Psychopharmacology Unit, Brain and Behaviour Institute, Universiteit Maastricht, Maastricht, The Netherlands, Nestle Research Center, Lausanne, Switzerland
    J Psychopharmacol 19:375-84. 2005
    ..The data suggest that serotonergic hypofunction may play a role in premenstrual memory decline, but serotonergic mechanisms cannot fully account for observed cognitive changes in the premenstrual phase...
  43. ncbi request reprint Effects of 5-HT on memory and the hippocampus: model and data
    Martijn Meeter
    Department of Cognitive Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
    Neuropsychopharmacology 31:712-20. 2006
    ..The results suggest that the memory impairments in depressed subjects may be related to 5-HT undertransmission, and support the notion that 5-HT1A agonists ameliorate memory deficits in depression...
  44. ncbi request reprint Human cognition assessment in drug research
    Wim J Riedel
    Psychiatry Discovery Medicine, GlaxoSmithKline R and D, Cambridge, UK
    Curr Pharm Des 12:2525-39. 2006
    ..The associated factor analytical-, resource-strategy- and staged information processing models respectively are described. Finally a brief review is presented on possible physiological markers or biomarkers of human cognitive functions...
  45. ncbi request reprint Atypical cognitive profile in patients with depression after myocardial infarction
    Jeanette B Dijkstra
    Department of Psychiatry and Neuropsychology, Maastricht University Hospital, P O Box 5800, 6202 AZ, Maastricht, The Netherlands
    J Affect Disord 70:181-90. 2002
    ..We evaluated the cognitive profile of 48 patients with major depression following their first myocardial infarction (MI)...
  46. ncbi request reprint Dopaminergic enhancement of cognitive function
    Mitul A Mehta
    Centre for Neuroimaging Sciences, Institute of Psychiatry, King s College, London, UK
    Curr Pharm Des 12:2487-500. 2006
    ....
  47. ncbi request reprint Negative-ion chemical ionization gas chromatography-mass spectrometry assay for enantioselective measurement of amphetamines in oral fluid: application to a controlled study with MDMA and driving under the influence cases
    Frank T Peters
    Department of Experimental and Clinical Toxicology, Saarland University, Homburg Saar, Germany
    Clin Chem 53:702-10. 2007
    ..Methods have been described for various matrices, but so far not for oral fluid, a matrix of increasing importance in testing for drugs of abuse, especially in the context of driving under the influence of drugs (DUID)...
  48. ncbi request reprint Does ketamine mimic aspects of schizophrenic speech?
    Michael A Covington
    CASPR, Artificial Intelligence Center, University of Georgia, Athens, GA 30602, USA
    J Psychopharmacol 21:338-46. 2007
    ..Reduced use of verbs apparently reflects a cognitive impairment of a different type than repetitiousness, and further investigation is needed to determine whether this impairment occurs in psychosis...