Research Topics
| Euphrosyne Gouzoulis-MayfrankSummaryAffiliation: University of Cologne Country: Germany Publications
| Collaborators
|
Detail Information
Publications
[Dual diagnosis psychosis and substance use disorders: theoretical foundations and treatment]Euphrosyne Gouzoulis-Mayfrank
Klinik und Poliklinik fur Psychiatrie und Psychotherapie, Klinikum der Universität zu Köln, Germany
Z Kinder Jugendpsychiatr Psychother 36:245-53. 2008..Current clinical research demonstrates that integrated treatment programmes can achieve significant improvements with regard to the social adjustment of, as well as decreased substance use by DD patients...
Deficient inhibition of return in schizophrenia-further evidence from an independent sampleEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, D-50924 Cologne, Germany
Prog Neuropsychopharmacol Biol Psychiatry 30:42-9. 2006..IOR seems to be not just delayed, but rather profoundly disturbed in schizophrenia. Deficient IOR in patients with schizophrenia might be viewed as a trait or alternatively as a vulnerability marker of the disorder...
Neurotoxicity of methylenedioxyamphetamines (MDMA; ecstasy) in humans: how strong is the evidence for persistent brain damage?E Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University of Cologne, Germany
Addiction 101:348-61. 2006..Consequently, various abnormalities including psychiatric, vegetative, neuroendocrine and cognitive disorders could be expected in humans following MDMA-induced neurotoxic brain damage...
Memory performance in polyvalent MDMA (ecstasy) users who continue or discontinue MDMA useEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, D 50924 Cologne, Germany
Drug Alcohol Depend 78:317-23. 2005..However, studies with user populations and controls suffer from many inherent methodological problems. Moreover, longitudinal data on memory performance after continued or discontinued ecstasy use are scarce...
Psychological effects of (S)-ketamine and N,N-dimethyltryptamine (DMT): a double-blind, cross-over study in healthy volunteersE Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, Cologne, Germany
Pharmacopsychiatry 38:301-11. 2005..However, so far, the psychological profiles of the two types of hallucinogenic drugs have never been studied directly in an experimental within-subject design...
[Dual diagnosis of psychosis and addiction. From principles to practice]E Gouzoulis-Mayfrank
Klinik fur Psychiatrie und Psychotherapie, Universitatsklinikum Aachen, Aachen, Deutschland
Nervenarzt 75:642-50. 2004....
The confounding problem of polydrug use in recreational ecstasy/MDMA users: a brief overviewEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University of Cologne, Germany
J Psychopharmacol 20:188-93. 2006....
[Doble diagnosis--psychosis and addiction]E Gouzoulis-Mayfrank
,
Fortschr Neurol Psychiatr 74:528-44; quiz 545-6. 2006
Blunted inhibition of return in schizophrenia-evidence from a longitudinal studyEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University Hospital, Technical University of Aachen RWTH, Pauwelsstrasse 30, Aachen D 52057, Germany
Prog Neuropsychopharmacol Biol Psychiatry 28:389-96. 2004....
Orienting of attention in unmedicated patients with schizophrenia, prodromal subjects and healthy relativesEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, D 50924 Cologne, Germany
Schizophr Res 97:35-42. 2007..In conclusion, blunted IOR in schizophrenia is not secondary to medications. According to this and previous studies blunted IOR may be most probably viewed as a trait cognitive feature of the schizophrenic disorder...
Inhibition of return in the human 5HT2A agonist and NMDA antagonist model of psychosisEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University of Cologne, Germany
Neuropsychopharmacology 31:431-41. 2006..Blunted IOR may underlie or predispose to different psychotic manifestations, but particularly to those with prominent positive symptoms...
Semantic hyperpriming in thought-disordered patients with schizophrenia: state or trait?--a longitudinal investigationEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, Technical University of Aachen RWTH, Pauwelsstrasse 30, D 5205, Aachen, Germany
Schizophr Res 65:65-73. 2003..In conclusion, semantic hyperpriming in TD patients with schizophrenia appears to be clearly state-dependent and might be viewed as an episode marker of psychosis with TD...
Neurotoxicity of drugs of abuse--the case of methylenedioxyamphetamines (MDMA, ecstasy), and amphetaminesEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, University of Cologne, Germany
Dialogues Clin Neurosci 11:305-17. 2009..In this paper, we will review the literature focusing on human studies...
[Comorbidity of substance use and other psychiatric disorders--theoretical foundation and evidence based therapy]E Gouzoulis-Mayfrank
Klinik fur Psychiatrie und Psychotherapie, Universitätsklinik Köln, Koln
Fortschr Neurol Psychiatr 76:263-71. 2008..The next step should be a broader application of integrated treatment programs and their adoption as standard treatment within the national health systems...
Memory impairment suggests hippocampal dysfunction in abstinent ecstasy usersEuphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, Medical Faculty of the University of Technology RWTH, Pauwelsstrasse 30, D 52074 Aachen, Germany
Prog Neuropsychopharmacol Biol Psychiatry 27:819-27. 2003..Hippocampal dysfunction after ecstasy use may be a risk factor for earlier onset and/or more severe age-related memory decline in later years...
Mismatch negativity generation in the human 5HT2A agonist and NMDA antagonist model of psychosisKarsten Heekeren
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, 50924, Cologne, Germany
Psychopharmacology (Berl) 199:77-88. 2008..Previous studies reported a significant reduction of MMN after ketamine (N-methyl-D-aspartate acid [NMDA] antagonist model) but not after psilocybin (5HT2A agonist model)...
Neural mechanisms of working memory in ecstasy (MDMA) users who continue or discontinue ecstasy and amphetamine use: evidence from an 18-month longitudinal functional magnetic resonance imaging studyJörg Daumann
Department of Psychiatry and Psychotherapy, University of Cologne, Cologne Germany
Biol Psychiatry 56:349-55. 2004..Here, we examined whether cortical activation patterns change after prolonged periods of continued use or abstinence from ecstasy and amphetamine...
Memory-related hippocampal dysfunction in poly-drug ecstasy (3,4-methylenedioxymethamphetamine) usersJörg Daumann
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, 50931, Cologne, Germany
Psychopharmacology (Berl) 180:607-11. 2005..3,4-Methylenedioxymethamphetamine (MDMA, ecstasy) is neurotoxic in animal studies and its use has been associated with cognitive impairments in humans...
Intensity dependence of auditory evoked dipole source activity in polydrug ecstasy users: evidence from an 18 months longitudinal studyJörg Daumann
Department of Psychiatry and Psychotherapy, University of Cologne, Germany
J Psychopharmacol 20:236-44. 2006..Thus, further research with larger sample sizes and prospective study designs are needed to definitively establish a causative link between ecstasy use and neurotoxicity-related dysfunctions in sensory processing...
The impact of early-onset cannabis use on functional brain correlates of working memoryBenjamin Becker
Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
Prog Neuropsychopharmacol Biol Psychiatry 34:837-45. 2010..The maturing brain might be more vulnerable to the harmful effects of cannabis use. However, due to a lack of a non-using control group we cannot exclude alternative interpretations...
Prepulse inhibition of the acoustically evoked startle reflex in patients with an acute schizophrenic psychosis--a longitudinal studyUlrich Meincke
Dept of Psychiatry and Psychotherapy, Technical University of Aachen, Pauwelsstrasse 30, 52057 Aachen, Germany
Eur Arch Psychiatry Clin Neurosci 254:415-21. 2004....
Self-reported psychopathological symptoms in recreational ecstasy (MDMA) users are mainly associated with regular cannabis use: further evidence from a combined cross-sectional/longitudinal investigationJörg Daumann
Department of Psychiatry and Psychotherapy, Medical Faculty of the University of Technology RWTH, Pauwelsstrasse 30, 52074 Aachen, Germany
Psychopharmacology (Berl) 173:398-404. 2004..However, exploring the origins of psychopathology in ecstasy users is hampered by the frequent polydrug use and by the cross-sectional design of all investigations, so far...
Pharmacological modulation of the neural basis underlying inhibition of return (IOR) in the human 5-HT2A agonist and NMDA antagonist model of psychosisJörg Daumann
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, 50924 Cologne, Germany
Psychopharmacology (Berl) 200:573-83. 2008..Pharmacologic challenges with hallucinogens have been used as models for psychosis...
Correlation of passivity symptoms and dysfunctional visuomotor action monitoring in psychosisKnut Schnell
Department of Psychiatry and Psychotherapy, Division of Medical Psychology, University Hospital of Bonn, Bonn, Germany
Brain 131:2783-97. 2008....
Neural correlates of working memory in pure and polyvalent ecstasy (MDMA) usersJörg Daumann
Department of Psychiatry and Psychotherapy, Medical Faculty of the University of Technology RWTH, Aachen, Germany
Neuroreport 14:1983-7. 2003..Our results suggest that altered brain activation patterns during cognitive processing in ecstasy users may be mainly associated with prior MDMA use. Concomitant use of other drugs may modify this effect...
Interactions between specific parameters of cannabis use and verbal memoryDaniel Wagner
Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
Prog Neuropsychopharmacol Biol Psychiatry 34:871-6. 2010..This finding might deliver more insight into the complex mechanisms underlying the impaired memory functions observed in cannabis users...
Sensitization and habituation of the acoustic startle reflex in patients with schizophreniaUlrich Meincke
Department of Psychiatry and Psychotherapy, Technical University of Aachen, Pauwelsstrasse 30, D 52057 Aachen, Germany
Psychiatry Res 126:51-61. 2004..In addition, the present data have important implications for designing startle studies to assess sensitization, habituation and prepulse inhibition in one session...
Electromyographical differentiation between the acoustic blink and startle reflex. Implications for studies investigating startle behaviorUlrich Meincke
Department of Psychiatry and Psychotherapy, Technical University of Aachen, Pauwelsstrasse 30, 52057 Aachen, Germany
Eur Arch Psychiatry Clin Neurosci 252:141-5. 2002..This complexity should be taken into account in clinical studies of the modulation of the startle reflex...
Medial prefrontal gray matter volume reductions in users of amphetamine-type stimulants revealed by combined tract-based spatial statistics and voxel-based morphometryJörg Daumann
Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
Neuroimage 54:794-801. 2011..Differences are likely to reflect effects of repeated ATS exposure even in recreational users. However, differences in pre-existing or confounding factors might also account for between-group differences...
An fMRI approach to particularize the frontoparietal network for visuomotor action monitoring: Detection of incongruence between test subjects' actions and resulting perceptionsKnut Schnell
Department of Psychiatry and Psychotherapy, University Hospital of Cologne, Kerpener Str 62, 50924 Cologne, Germany
Neuroimage 34:332-41. 2007..Different activation patterns of the PFC may reflect different frontoparietal networks for sustained action monitoring and actual detection of reafferent incongruence...
The role of cannabis in cognitive functioning of patients with schizophreniaThomas Schnell
Department of Psychiatry and Psychotherapy, University Hospital of Cologne, Kerpener Str 62, 50924, Cologne, Germany
Psychopharmacology (Berl) 205:45-52. 2009..Surprisingly, some small recent studies reported better cognitive performance in SCH patients with comorbid cannabis use disorders (SCH + CUD) compared to other SCH patients...
Attentional modulation of prepulse inhibition: a new startle paradigmKarsten Heekeren
Department of Psychiatry and Psychotherapy, University of Technology (RWTH, Aachen, Germany
Neuropsychobiology 49:88-93. 2004..This new paradigm offers a valuable tool for the study of attentional modulation of sensorimotor gating in humans...
Altered parahippocampal functioning in cannabis users is related to the frequency of useBenjamin Becker
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, 50924, Cologne, Germany
Psychopharmacology (Berl) 209:361-74. 2010..These deficits have been associated with the duration, frequency, and age of onset of cannabis use. However, it remains unclear whether these parameters of use differently impact memory-related hippocampal functioning...
Cerebral activation in abstinent ecstasy (MDMA) users during a working memory task: a functional magnetic resonance imaging (fMRI) studyJörg Daumann
Department of Psychiatry and Psychotherapy, Medical Faculty of the University of Technology RWTH, Pauwelsstrasse 30, D 52074 Aachen, Germany
Brain Res Cogn Brain Res 16:479-87. 2003..Our results may indicate subtle altered brain functioning associated with prior MDMA use, although alternative interpretations of these group differences must be considered...
Proton magnetic resonance spectroscopy in ecstasy (MDMA) usersJörg Daumann
Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
Neurosci Lett 362:113-6. 2004..Thus, compared with cognitive deficits, 1H MRS appears to be a less sensitive marker of potential neurotoxic damage in ecstasy users...
Memory-related hippocampal functioning in ecstasy and amphetamine users: a prospective fMRI studyBenjamin Becker
Department of Psychiatry and Psychotherapy, University of Cologne, Kerpener Strasse 62, 50924 Cologne, Germany
Psychopharmacology (Berl) 225:923-34. 2013..Functional neuroimaging studies with cross-sectional designs reported altered memory-related hippocampal functioning in ecstasy-polydrug users. However, differences might be pre-existing or related to the concomitant use of amphetamine...
A prospective study of learning, memory, and executive function in new MDMA usersDaniel Wagner
Department of Psychiatry and Psychotherapy, University of Cologne, Germany
Addiction 108:136-45. 2013..The present study was conducted in order to assess the relationship between beginning MDMA use and subsequent cognitive performance and to overcome previous methodological shortcomings...
Increased gray matter density in patients with schizophrenia and cannabis use: a voxel-based morphometric study using DARTELThomas Schnell
Medical School Hamburg, Am Kaiserkai 1, 20457 Hamburg, Germany
Schizophr Res 138:183-7. 2012..In the pooled sample gray matter density was positively associated with cognitive functioning. Results may support the hypothesis of a lower biological vulnerability in at least one subgroup of SCH+CAN patients...
Plasticity of the acoustic startle reflex in currently abstinent ecstasy (MDMA) usersKarsten Heekeren
Department of Psychiatry and Psychotherapy, University of Technology (RWTH, Pauwelsstrasse 30, 52074 Aachen, Germany
Psychopharmacology (Berl) 173:418-24. 2004..Alternatively, strong sensitization might reflect a pre-existing trait predisposing to drug use. A clearer picture of the impact of ecstasy on startle plasticity may be obtained from longitudinal investigations...
Neuroendocrine abnormalities in recreational ecstasy (MDMA) users: is it ecstasy or cannabis?Euphrosyne Gouzoulis-Mayfrank
Department of Psychiatry and Psychotherapy, Medical Faculty of the University of Technology RWTH, Aachen, Germany
Biol Psychiatry 51:766-9. 2002..The purpose of this study was to investigate neuroendocrine function in ecstasy (3,4-methylenedioxymethamphetamine = MDMA) users and controls...
