L Krabbendam

Summary

Affiliation: Maastricht University
Country: The Netherlands

Publications

  1. pmc Psychosis risk as a function of age at onset: a comparison between early- and late-onset psychosis in a general population sample
    Sebastian Kohler
    Department of Psychiatry and Neuropsychology, Sth Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, P O BOX 616 VIJV, 6200, MD, Maastricht, The Netherlands
    Soc Psychiatry Psychiatr Epidemiol 42:288-94. 2007
  2. pmc Executive function does not predict coping with symptoms in stable patients with a diagnosis of schizophrenia
    Maarten Bak
    Dept Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    BMC Psychiatry 8:39. 2008
  3. pmc Are women better mindreaders? Sex differences in neural correlates of mentalizing detected with functional MRI
    Sören Krach
    Department of Psychiatry und Psychotherapy, Section of Neuroimaging, Philipps University Marburg, Rudolf Bultmann Strasse 8, D 35039 Marburg, Germany
    BMC Neurosci 10:9. 2009
  4. ncbi request reprint Familial covariation of the subclinical psychosis phenotype and verbal fluency in the general population
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO Box 616 PAR 45, 6200 MD Maastricht, The Netherlands
    Schizophr Res 74:37-41. 2005
  5. ncbi request reprint Hallucinatory experiences and onset of psychotic disorder: evidence that the risk is mediated by delusion formation
    L Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 110:264-72. 2004
  6. ncbi request reprint Dimensions of depression, mania and psychosis in the general population
    L Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Psychol Med 34:1177-86. 2004
  7. ncbi request reprint Explaining transitions over the hypothesized psychosis continuum
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, Maastricht, University, The Netherlands
    Aust N Z J Psychiatry 39:180-6. 2005
  8. ncbi request reprint Development of depressed mood predicts onset of psychotic disorder in individuals who report hallucinatory experiences
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands
    Br J Clin Psychol 44:113-25. 2005
  9. ncbi request reprint Affective processes in the onset and persistence of psychosis
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands
    Eur Arch Psychiatry Clin Neurosci 255:185-9. 2005
  10. doi request reprint Using the Stroop task to investigate the neural correlates of symptom change in schizophrenia
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, PO BOX 616 location VIJV, 6200 MD Maastricht, The Netherlands
    Br J Psychiatry 194:373-4. 2009

Detail Information

Publications85

  1. pmc Psychosis risk as a function of age at onset: a comparison between early- and late-onset psychosis in a general population sample
    Sebastian Kohler
    Department of Psychiatry and Neuropsychology, Sth Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, P O BOX 616 VIJV, 6200, MD, Maastricht, The Netherlands
    Soc Psychiatry Psychiatr Epidemiol 42:288-94. 2007
    ..The aims of this study were to calculate the incidence of non-affective, non-organic psychotic symptoms across the life span and to explore the contribution of different sets of risk factors in relation to age at onset...
  2. pmc Executive function does not predict coping with symptoms in stable patients with a diagnosis of schizophrenia
    Maarten Bak
    Dept Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    BMC Psychiatry 8:39. 2008
    ....
  3. pmc Are women better mindreaders? Sex differences in neural correlates of mentalizing detected with functional MRI
    Sören Krach
    Department of Psychiatry und Psychotherapy, Section of Neuroimaging, Philipps University Marburg, Rudolf Bultmann Strasse 8, D 35039 Marburg, Germany
    BMC Neurosci 10:9. 2009
    ..Groups of men (n = 12) and women (n = 12) interacted in an iterated classical prisoner's dilemma forced choice situation with alleged human and computer partners who were outside the scanner...
  4. ncbi request reprint Familial covariation of the subclinical psychosis phenotype and verbal fluency in the general population
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO Box 616 PAR 45, 6200 MD Maastricht, The Netherlands
    Schizophr Res 74:37-41. 2005
    ..This study examined to what degree the subclinical psychosis phenotype in the general population shows similar familial continuity with cognition, measured with a verbal fluency test, and whether this was similar for men and women...
  5. ncbi request reprint Hallucinatory experiences and onset of psychotic disorder: evidence that the risk is mediated by delusion formation
    L Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 110:264-72. 2004
    ..To examine the hypothesis that the risk for onset of psychotic disorder in individuals with self-reported hallucinatory experiences (HE) would be higher in those who developed delusional ideation (DE) than in those who did not...
  6. ncbi request reprint Dimensions of depression, mania and psychosis in the general population
    L Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Psychol Med 34:1177-86. 2004
    ....
  7. ncbi request reprint Explaining transitions over the hypothesized psychosis continuum
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, Maastricht, University, The Netherlands
    Aust N Z J Psychiatry 39:180-6. 2005
    ....
  8. ncbi request reprint Development of depressed mood predicts onset of psychotic disorder in individuals who report hallucinatory experiences
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands
    Br J Clin Psychol 44:113-25. 2005
    ..This study examined the hypothesis that the risk for onset of psychotic disorder in individuals with self-reported hallucinatory experiences would be higher in those who subsequently developed depressed mood than in those who did not...
  9. ncbi request reprint Affective processes in the onset and persistence of psychosis
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands
    Eur Arch Psychiatry Clin Neurosci 255:185-9. 2005
    ....
  10. doi request reprint Using the Stroop task to investigate the neural correlates of symptom change in schizophrenia
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, PO BOX 616 location VIJV, 6200 MD Maastricht, The Netherlands
    Br J Psychiatry 194:373-4. 2009
    ..At follow-up, there was a significant increase in activation in the left inferior frontal junction associated with a decrease in positive symptoms, suggesting this region plays a role in the development of these symptoms...
  11. ncbi request reprint Schizophrenia and urbanicity: a major environmental influence--conditional on genetic risk
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands
    Schizophr Bull 31:795-9. 2005
    ....
  12. ncbi request reprint Cognitive functioning in patients with schizophrenia and bipolar disorder: a quantitative review
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, The Netherlands
    Schizophr Res 80:137-49. 2005
    ..The aim of this study was to review quantitatively the studies on cognitive performance in schizophrenia and bipolar disorder...
  13. ncbi request reprint Cognitive rehabilitation in schizophrenia: a quantitative analysis of controlled studies
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology PAR45, Maastricht University, PO Box 616, 6200 MD, Maastricht, The Netherlands
    Psychopharmacology (Berl) 169:376-82. 2003
    ..Cognitive rehabilitation is now recognized as an important tool in the treatment of schizophrenia, and findings in this area are emerging rapidly. There is a need for a systematic review of the effects of the different training programs...
  14. ncbi request reprint The impact of maternal stress on pregnancy outcome in a well-educated Caucasian population
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, European Graduate School of Neuroscience Maastricht, Maastricht University, Maastricht, The Netherlands
    Paediatr Perinat Epidemiol 19:421-5. 2005
    ..47]). The results do not support a direct relationship between perceived stress and adverse pregnancy outcome. Demographic variables may explain the association between psychosocial stress and pregnancy outcome to a significant degree...
  15. ncbi request reprint Relationship between DHA status at birth and child problem behaviour at 7 years of age
    L Krabbendam
    Department of Psychiatry and Neuropsychology, SEARCH, EURON, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Prostaglandins Leukot Essent Fatty Acids 76:29-34. 2007
    ..The results suggest that perinatal DHA status may have long-term behavioural consequences. Therefore, we suggest to include measures of problem behaviour in future trials of LC-PUFA supplementation of mothers and/or infants...
  16. ncbi request reprint Associations between COMTVal158Met polymorphism and cognition: direct or indirect effects?
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO BOX 616 VIJV, 6200 MD Maastricht, The Netherlands
    Eur Psychiatry 21:338-42. 2006
    ..This study examined (i) to what degree RTV pertaining to tasks of varying cognitive complexity would be associated with increased risk for schizophrenia and (ii) to what degree this would be mediated by Val loading...
  17. ncbi request reprint Validity and reliability of the CAPE: a self-report instrument for the measurement of psychotic experiences in the general population
    M Konings
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 114:55-61. 2006
    ..This study tested the reliability and validity of the Community Assessment of Psychic Experiences (CAPE42)...
  18. doi request reprint Cognition as predictor of current and follow-up depressive symptoms in the general population
    C J P Simons
    Department of Psychiatry and Neuropsychology, Maastricht University, European Graduate School of Neuroscience, Maastricht, The Netherlands
    Acta Psychiatr Scand 120:45-52. 2009
    ..This study examined whether cognitive deficits predict current and/or follow-up (sub)clinical depressive symptoms in the general population...
  19. doi request reprint Evidence that bipolar disorder is the poor outcome fraction of a common developmental phenotype: an 8-year cohort study in young people
    M J A Tijssen
    Department of Psychiatry, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Psychol Med 40:289-99. 2010
    ..Reported rates of bipolar syndromes are highly variable between studies because of age differences, differences in diagnostic criteria, or restriction of sampling to clinical contacts...
  20. ncbi request reprint Sex differences in emotional reactivity to daily life stress in psychosis
    Inez Myin-Germeys
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, The Netherlands
    J Clin Psychiatry 65:805-9. 2004
    ..The current study investigates whether these sex differences in clinical expression are reflected in one underlying mechanism that may be causally related to psychosis, namely increases in stress sensitivity in daily life...
  21. doi request reprint Neurocognitive functioning as intermediary phenotype and predictor of psychosocial functioning across the psychosis continuum: studies in schizophrenia and bipolar disorder
    Nienke Jabben
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    J Clin Psychiatry 71:764-74. 2010
    ....
  22. doi request reprint A systematic review and meta-analysis of the psychosis continuum: evidence for a psychosis proneness-persistence-impairment model of psychotic disorder
    J van Os
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Psychol Med 39:179-95. 2009
    ....
  23. doi request reprint Social cognition and neurocognition as independent domains in psychosis
    S van Hooren
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO BOX 6161, 6200 MD Maastricht, The Netherlands
    Schizophr Res 103:257-65. 2008
    ..Cognitive liabilities to psychosis are manifold, and include key processes underlying basic person-environment interactions in daily life, independent of cognition quantified by neuropsychological tests...
  24. doi request reprint Subtle gene-environment interactions driving paranoia in daily life
    C J P Simons
    Department of Psychiatry and Neuropsychology, European Graduate School of Neuroscience, Maastricht University Medical Centre, SEARCH, Maastricht, The Netherlands
    Genes Brain Behav 8:5-12. 2009
    ..Thus, paranoia in the flow of daily life may be the result of gene-environment interactions that can be traced to different types of stress being moderated by different types of genetic variation...
  25. ncbi request reprint Evidence for a relationship between mentalising deficits and paranoia over the psychosis continuum
    Dagmar Versmissen
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO BOX 616 VIJV, 6200 MD Maastricht, The Netherlands
    Schizophr Res 99:103-10. 2008
    ..This study wanted to assess an aspect of mentalising in four groups with different levels of psychosis vulnerability, and to examine associations between mentalising and symptoms of psychosis...
  26. ncbi request reprint Are apparent associations between parental representations and psychosis risk mediated by early trauma?
    I Janssen
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 112:372-5. 2005
    ..It was investigated whether the reported association between representations of parental rearing style and psychosis does not represent a main effect, but instead is a proxy indicator of the true underlying risk factor of early trauma...
  27. ncbi request reprint Early trauma may increase the risk for psychotic experiences by impacting on emotional response and perception of control
    M Bak
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 112:360-6. 2005
    ..Exposure to early trauma may increase the risk of dysfunctional responses to anomalous psychotic experiences resulting in psychotic symptom formation...
  28. doi request reprint A 2-year naturalistic study on cognitive functioning in bipolar disorder
    B Arts
    Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 123:190-205. 2011
    ..Cognitive alterations in bipolar disorder may reflect genetic influence. However, to what degree mood, medication, thyroid function and other factors impact on longitudinal cognitive functioning remains unclear...
  29. ncbi request reprint Can cognitive deficits explain differential sensitivity to life events in psychosis?
    I Myin-Germeys
    Dep of Psychiatry and Neuropsychology, azM Mondriaan RIBW Riagg Vijverdal Academic Centre, Maastricht University, Maastricht, The Netherlands
    Soc Psychiatry Psychiatr Epidemiol 38:262-8. 2003
    ....
  30. ncbi request reprint Cognitive alterations in groups at risk for psychosis: neutral markers of genetic risk or indicators of social disability?
    N Jabben
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 116:253-62. 2007
    ..To investigate whether cognitive alterations associated with vulnerability to psychosis, are associated with expression of psychopathology and functional outcome in groups at different levels of risk for psychotic illness...
  31. ncbi request reprint Tardive dyskinesia is associated with impaired retrieval from long-term memory: the Curaçao Extrapyramidal Syndromes Study: IV
    L Krabbendam
    Maastricht Brain and Behavior Institute, Department of Psychiatry and Neuropsychology, Psychomedical Center Vÿver dal, P O Box 88, 6200 AB, Maastricht, The Netherlands
    Schizophr Res 42:41-6. 2000
    ..The results underscore the importance of using specific cognitive test procedures in the search for the cognitive correlates of dyskinesia...
  32. ncbi request reprint Meta-analyses of cognitive functioning in euthymic bipolar patients and their first-degree relatives
    B Arts
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO Box 616 KAP2, 6200 MD Maastricht, The Netherlands
    Psychol Med 38:771-85. 2008
    ..Previous work suggests that impairments in executive function and verbal memory in particular may persist in euthymic bipolar patients and serve as an indicator of genetic risk (endophenotype)...
  33. ncbi request reprint Childhood abuse as a risk factor for psychotic experiences
    I Janssen
    Department of Psychiatry and Neuropsychology, azM Mondriaan Riagg RIBW Vijverdal Academic Centre, EURON, Maastricht University, MD Maastricht, The Netherlands
    Acta Psychiatr Scand 109:38-45. 2004
    ..To examine the hypothesis that individuals from the general population who report childhood abuse are at increased risk of developing positive psychotic symptoms...
  34. ncbi request reprint Evidence for instrument and family-specific variation of subclinical psychosis dimensions in the general population
    M Hanssen
    Department of Psychiatry and Neuropsychology, EURON, Maastricht University, Maastricht, The Netherlands
    J Abnorm Psychol 115:5-14. 2006
    ..The SIS-R additionally captures family-specific variation in the negative domain...
  35. doi request reprint Is processing speed predictive of functional outcome in psychosis?
    Nienke Jabben
    Department of Psychiatry and Neuropsychology, Maastricht University, P O BOX 616 VIJV, 6200 MD, Maastricht, The Netherlands
    Soc Psychiatry Psychiatr Epidemiol 43:437-44. 2008
    ..To investigate the contribution of processing speed in the prediction of various domains of outcome in psychosis...
  36. doi request reprint Investigating the association between neurocognition and psychosis in bipolar disorder: further evidence for the overlap with schizophrenia
    Nienke Jabben
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Bipolar Disord 11:166-77. 2009
    ..In this study, we investigated whether this model can be extended to bipolar disorder by testing the hypothesis that neurocognitive functioning is inversely related to positive psychotic symptoms in bipolar disorder...
  37. ncbi request reprint Are cognitive impairments associated with sensitivity to stress in schizophrenia? An experience sampling study
    Inez Myin-Germeys
    Department of Psychiatry and Neuropsychology, European Graduate School of Neuroscience, Maastricht University, The Netherlands
    Am J Psychiatry 159:443-9. 2002
    ..Patients with a diagnosis of schizophrenia display cognitive impairments and abnormal sensitivity to stress. However, little is known about the relationship between these two endophenotypes...
  38. ncbi request reprint Single or multiple familial cognitive risk factors in schizophrenia?
    L Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, European Graduate School of Neuroscience, Maastricht, The Netherlands
    Am J Med Genet 105:183-8. 2001
    ..Independent familial cognitive risk factors may represent separate causal influences or separate indicators of risk related to the same genetic mechanism...
  39. ncbi request reprint Subclinical psychotic experiences and cognitive functioning as a bivariate phenotype for genetic studies in the general population
    C J P Simons
    Department of Psychiatry and Neuropsychology, Maastricht University, European Graduate School of Neuroscience, SEARCH, P O Box 616, 6200 MD Maastricht, The Netherlands
    Schizophr Res 92:24-31. 2007
    ....
  40. ncbi request reprint Sex differences in psychosis: normal or pathological?
    Janneke Spauwen
    Department of Psychiatry and Neuropsychology, Maastricht University, European Graduate School of Neuroscience, PO BOX 616 DRT 10, 6200 MD Maastricht, The Netherlands
    Schizophr Res 62:45-9. 2003
    ..The interpretation of this key epidemiological finding crucially depends on whether similar age-related sex differences exist in the expression of associated, subclinical psychosis-like experiences...
  41. ncbi request reprint An experimental study of catechol-o-methyltransferase Val158Met moderation of delta-9-tetrahydrocannabinol-induced effects on psychosis and cognition
    Cecile Henquet
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Neuropsychopharmacology 31:2748-57. 2006
    ..The association between cannabis and psychosis may represent higher order gene-environment and gene-gene interactions...
  42. doi request reprint Daily cortisol, stress reactivity and psychotic experiences in individuals at above average genetic risk for psychosis
    D Collip
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University Medical Centre, Maastricht, The Netherlands
    Psychol Med 41:2305-15. 2011
    ....
  43. ncbi request reprint Attribution style and psychosis: evidence for an externalizing bias in patients but not in individuals at high risk
    I Janssen
    Department of Psychiatry and Neuropsychology, SEARCH, EURON, Maastricht University, Maastricht, The Netherlands
    Psychol Med 36:771-8. 2006
    ....
  44. doi request reprint Can obsessions drive you mad? Longitudinal evidence that obsessive-compulsive symptoms worsen the outcome of early psychotic experiences
    F van Dael
    Department of Neuropsychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 123:136-46. 2011
    ..This study examined cross-sectional and longitudinal associations between both (extended) phenotypes in the general population...
  45. doi request reprint Cognitive performance and grey matter density in psychosis: functional relevance of a structural endophenotype
    P Habets
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Neuropsychobiology 58:128-37. 2008
    ..However, the pattern of associations between such structural and functional liability markers has been less well investigated...
  46. pmc Subjective experience of cognitive failures as possible risk factor for negative symptoms of psychosis in the general population
    Stefanie Pfeifer
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO BOX 616 VIJV1, 6200 MD, Maastricht, The Netherlands
    Schizophr Bull 35:766-74. 2009
    ..The aim of this study was to examine whether proneness to subjective cognitive failure (cognitive based mistakes) increases the risk for the development of symptoms of psychosis and to what degree any association was familial...
  47. ncbi request reprint Sex differences in symptoms of psychosis in a non-selected, general population sample
    Nadja Maric
    Department of Psychiatry and Neuropsychology, azM Mondriaan Riagg RIBW Vijverdal Academic Centre, European Graduate School of Neuroscience, Maastricht University, P O Box 616 DRT 10, 6200 MD Maastricht, The Netherlands
    Schizophr Res 63:89-95. 2003
    ..Little is known about sex differences in psychosis beyond the borders of clinical disorder...
  48. ncbi request reprint The impact of subclinical psychosis on the transition from subclinicial mania to bipolar disorder
    Nil Kaymaz
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO BOX 616 DRT 10, 6200 MD Maastricht, The Netherlands
    J Affect Disord 98:55-64. 2007
    ..Little is known, however, about how these subclinical population phenotypes co-vary with and impact on each other...
  49. ncbi request reprint Does urbanicity shift the population expression of psychosis?
    Janneke Spauwen
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, P O Box 616 DRT 10, 6200 MD Maastricht, The Netherlands
    J Psychiatr Res 38:613-8. 2004
    ..Other causal influences may be required to make the transition to schizophrenia in adult life...
  50. ncbi request reprint Do life events have their effect on psychosis by influencing the emotional reactivity to daily life stress?
    I Myin-Germeys
    Department of Psychiatry and Neuropsychology, azM Riagg Vijverdal Academic Centre, Maastricht University, The Netherlands
    Psychol Med 33:327-33. 2003
    ..However, the mechanism through which they operate is not known. The present study investigated whether LE have their effect by impacting on the emotional sensitivity for daily hassles...
  51. ncbi request reprint Alterations in theory of mind in patients with schizophrenia and non-psychotic relatives
    I Janssen
    Department of Psychiatry and Neuropsychology, azM Mondriaan Riagg RIBW Vijverdal Academic Centre, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 108:110-7. 2003
    ..The present study examined whether alterations in theory of mind reflect a trait that can be detected in non-psychotic relatives of patients with schizophrenia...
  52. ncbi request reprint How psychotic are individuals with non-psychotic disorders?
    M Hanssen
    Department of Psychiatry and Neuropsychology, Maastricht University, PO BOX 616 DRT 10, 6200 MD Maastricht, The Netherlands
    Soc Psychiatry Psychiatr Epidemiol 38:149-54. 2003
    ..The objective of this study was to compare, using a self-report questionnaire, the dimensions of psychosis across different patient groups in a community mental health service (CMHS) and in non-patients in the general population...
  53. doi request reprint Are psychotic psychopathology and neurocognition orthogonal? A systematic review of their associations
    Maria de Gracia Dominguez
    Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands
    Psychol Bull 135:157-71. 2009
    ..This association suggests that differential latent cerebral mechanisms underlie the cluster of disorganized and negative symptoms versus that of positive and affective symptoms...
  54. ncbi request reprint Early maternal stress and health behaviours and offspring expression of psychosis in adolescence
    J Spauwen
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, 6200 MD Maastricht, The Netherlands
    Acta Psychiatr Scand 110:356-64. 2004
    ..It has been suggested that influences operating early in life may affect the risk of postpubertal psychosis outcomes. This hypothesis was tested using a broad outcome of psychotic symptoms expressed in adolescence (prevalence: 15.6%)...
  55. ncbi request reprint The wider social environment and mental health service use
    M Drukker
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Acta Psychiatr Scand 110:119-29. 2004
    ..Previous studies associating neighbourhood context with mental health service use typically included limited sets of confounders...
  56. ncbi request reprint The behavioural assessment of the dysexecutive syndrome as a tool to assess executive functions in schizophrenia
    L Krabbendam
    Maastricht Brain and Behavior Institute, Academic Department of Neuropsychology, Psychomedical Center Vijverdal, The Netherlands
    Clin Neuropsychol 13:370-5. 1999
    ..The BADS correlated weakly with the MCST. Both tests showed a modest correlation with daily functioning. The BADS appears to offer a useful contribution to the assessment of executive deficits in schizophrenia...
  57. ncbi request reprint [A psychosis proneness-persistence-impairment model of psychotic disorders]
    J van Os
    vakgroep Psychiatrie, UMC Maastricht, Universiteit Maastricht, Maastricht
    Tijdschr Psychiatr 50:77-83. 2008
    ..Whether or not this will lead to a poor prognosis in terms of persistence and clinical need will depend on the interaction between environmental exposure and genetic risk...
  58. pmc Data gathering: biased in psychosis?
    Frank Van Dael
    Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands
    Schizophr Bull 32:341-51. 2006
    ..JTC is associated with liability to psychosis (trait), in particular if the psychosis phenotype is characterized by delusional ideation (state)...
  59. ncbi request reprint Evidence that the outcome of developmental expression of psychosis is worse for adolescents growing up in an urban environment
    Janneke Spauwen
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Psychol Med 36:407-15. 2006
    ..5-year period...
  60. ncbi request reprint Subtle fluctuations in psychotic phenomena as functional states of abnormal dopamine reactivity in individuals at risk
    Inez Myin-Germeys
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Biol Psychiatry 58:105-10. 2005
    ..It was investigated whether this psychotic reactivity in individuals at risk for psychosis is the exophenotypic expression of an underlying endophenotype characterized by a hyperreactive dopamine (DA) system...
  61. ncbi request reprint Confusing thoughts and speech: source monitoring and psychosis
    Cecile Henquet
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    Psychiatry Res 133:57-63. 2005
    ..Failures in internal source monitoring are a prominent feature of schizophrenia, and our results suggest that they form a more enduring characteristic of this disorder than has previously been assumed...
  62. doi request reprint Capturing coping with symptoms in people with a diagnosis of schizophrenia: introducing the MACS-24
    Maarten Bak
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Int J Methods Psychiatr Res 18:4-12. 2009
    ..10, 95% CI = 1.03-1.19).Previous contrasts between symptomatic and non-symptomatic coping were replicated using MACS-24, suggesting clinical validity and utility...
  63. ncbi request reprint Evidence that the urban environment specifically impacts on the psychotic but not the affective dimension of bipolar disorder
    Nil Kaymaz
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, P O Box 616 DRT 10, 6200 MD, Maastricht, The Netherlands
    Soc Psychiatry Psychiatr Epidemiol 41:679-85. 2006
    ..It was hypothesised, therefore, that any effect of urbanicity on the bipolar phenotype would be moderated by comorbid psychotic symptoms...
  64. doi request reprint Functional magnetic resonance imaging of inner speech in schizophrenia
    Claudia J P Simons
    Department of Psychiatry and Neuropsychology, Maastricht University, European Graduate School of Neuroscience, 6200 MD Maastricht, The Netherlands
    Biol Psychiatry 67:232-7. 2010
    ..The present study investigated the functional neuroanatomy of inner and external speech in both patients with schizophrenia and healthy control subjects...
  65. ncbi request reprint Social disadvantage and schizophrenia. A combined neighbourhood and individual-level analysis
    Marjan Drukker
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, P O Box 616 Vijverdal, 6200, MD, Maastricht, The Netherlands
    Soc Psychiatry Psychiatr Epidemiol 41:595-604. 2006
    ....
  66. doi request reprint Evidence that better outcome of psychosis in women is reversed with increasing age of onset: a population-based 5-year follow-up study
    Sebastian Kohler
    Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, EURON, SEARCH, Maastricht University Medical Centre, Maastricht, The Netherlands
    Schizophr Res 113:226-32. 2009
    ..Female gender and later onset of psychosis are both associated with better outcome. However whether their effects are independent, is not known...
  67. ncbi request reprint The catechol-O-methyl transferase Val158Met polymorphism and experience of reward in the flow of daily life
    Marieke Wichers
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Neuropsychopharmacology 33:3030-6. 2008
    ..Genetic moderation of ecological measures of reward experience is hypothesized to be of major relevance to the development of various behavioral disorders, including depression and addiction...
  68. ncbi request reprint Lower birth weight of Dutch neonates who were in utero at the time of the 9/11 attacks
    Luc Smits
    Department of Epidemiology, Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
    J Psychosom Res 61:715-7. 2006
    ..Our aim was to test the hypothesis that maternal exposure to these acts of terrorism via the media had an unfavorable influence on mean birth weight in the Netherlands...
  69. ncbi request reprint Attentional bias and general orienting processes in bipolar disorder
    Ellen M M Jongen
    Department of Experimental Psychology, Faculty of Psychology, Maastricht University, P O Box 616, 6200 MD Maastricht, The Netherlands
    J Behav Ther Exp Psychiatry 38:168-83. 2007
    ..It is proposed that biases for emotional stimuli are related to the transition of mood states, characteristic for bipolar disorder...
  70. ncbi request reprint Evidence that familial liability for psychosis is expressed as differential sensitivity to cannabis: an analysis of patient-sibling and sibling-control pairs
    Rene S Kahn
    Department of Psychiatry and Psychology, Maastricht University Medical Centre, PO Box 616
    Arch Gen Psychiatry 68:138-47. 2011
    ..Individual differences in cannabis sensitivity may be associated with genetic risk for psychotic disorder...
  71. ncbi request reprint Sustained and focused attention deficits in adult ADHD
    Natalie D J Marchetta
    Maastricht University, Maastricht, Netherlands
    J Atten Disord 11:664-76. 2008
    ..To examine the specificity of deficits in focused attention and sustained attention in adults with ADHD and to evaluate the effect of comorbidity...
  72. doi request reprint Impairment of self-monitoring: part of the endophenotypic risk for psychosis
    Dagmar Versmissen
    Department of Psychiatry and Neuropsychology, Maastricht University, PO BOX 616 VIJV, 6200 MD Maastricht, The Netherlands
    Br J Psychiatry Suppl 51:s58-62. 2007
    ..A disorder of self-monitoring may underlie the positive symptoms of psychosis. The cognitive mechanisms associated with these symptoms may also be detectable in individuals at risk of psychosis...
  73. ncbi request reprint Role of distress in delusion formation
    Manon Hanssen
    Department of Psychiatry and Neuropsychology, Maastricht University, PO BOX 616 DRT 10, 6200 MD Maastricht, The Netherlands
    Br J Psychiatry Suppl 48:s55-8. 2005
    ..Contemporary cognitive psychological theories suggest that distress plays a mediating role in delusion formation...
  74. ncbi request reprint Impact of psychological trauma on the development of psychotic symptoms: relationship with psychosis proneness
    Janneke Spauwen
    Department of Psychiatry and Neuropsychology, Maastricht University, PO BOX 616 DRT 10, 6200 MD Maastricht, The Netherlands
    Br J Psychiatry 188:527-33. 2006
    ..The reported link between psychological trauma and onset of psychosis remains controversial...
  75. ncbi request reprint Cannabis use and expression of mania in the general population
    Cecile Henquet
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    J Affect Disord 95:103-10. 2006
    ..In order to investigate the association between exposure to cannabis and subsequent development of manic symptoms whilst controlling for psychotic symptoms, a longitudinal population-based study was carried out...
  76. ncbi request reprint Neuroticism and low self-esteem as risk factors for psychosis
    Lydia Krabbendam
    Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands
    Soc Psychiatry Psychiatr Epidemiol 37:1-6. 2002
    ..Low self-esteem and high neuroticism are common features in psychosis, but in the absence of longitudinal studies it is unclear whether they represent consequences of the illness or risk factors acting before illness onset...
  77. doi request reprint Interference control, working memory, concept shifting, and verbal fluency in adults with attention-deficit/hyperactivity disorder (ADHD)
    Natalie D J Marchetta
    Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, The Netherlands
    Neuropsychology 22:74-84. 2008
    ..Contrary to the authors' expectations, these findings do not correspond with the cognitive subtype hypothesis...
  78. ncbi request reprint Verbal self-monitoring in psychosis: a non-replication
    Dagmar Versmissen
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, Maastricht, The Netherlands
    Psychol Med 37:569-76. 2007
    ....
  79. pmc Prospective cohort study of cannabis use, predisposition for psychosis, and psychotic symptoms in young people
    Cecile Henquet
    Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University, PO Box 616, 6200 MD Maastricht, Netherlands
    BMJ 330:11. 2005
    ..To investigate the relation between cannabis use and psychotic symptoms in individuals with above average predisposition for psychosis who first used cannabis during adolescence...
  80. ncbi request reprint Meta-analyses of randomized controlled trials of social skills training and cognitive remediation
    Lydia Krabbendam
    Psychol Med 33:756; author reply 756-8. 2003
  81. pmc Recurrent CNVs disrupt three candidate genes in schizophrenia patients
    Terry Vrijenhoek
    Department of Human Genetics, Radboud University Nijmegen Medical Centre, 6500 HB Nijmegen, The Netherlands
    Am J Hum Genet 83:504-10. 2008
    ..Our study supports a role for rare CNVs in schizophrenia susceptibility and identifies at least three candidate genes for this complex disorder...
  82. doi request reprint Evidence that the COMTVal158Met polymorphism moderates subclinical psychotic and affective symptoms in unaffected first-degree relatives of patients with schizophrenia
    Ruud van Winkel
    University Psychiatric Center, Katholieke Universiteit Leuven, Leuvensesteenweg 517, 3070 Kortenberg, Belgium
    Eur Psychiatry 23:219-22. 2008
    ....
  83. ncbi request reprint Does normal developmental expression of psychosis combine with environmental risk to cause persistence of psychosis? A psychosis proneness-persistence model
    Audrey Cougnard
    INSERM U 657, University Victor Segalen Bordeaux 2, IFR99 of Public Health, Bordeaux, France
    Psychol Med 37:513-27. 2007
    ....
  84. ncbi request reprint The relationship between cognitive dysfunction and stress sensitivity in schizophrenia: a replication study
    Manuel Morrens
    Collaborative Antwerp Psychiatric Research Institute, Campus Drie Eiken, Antwerp, Belgium
    Soc Psychiatry Psychiatr Epidemiol 42:284-7. 2007
    ..Cognitive impairment and affective reactivity thus appear to be independent or mutually exclusive mechanisms in psychosis, suggesting competing causal pathways...