Research Topics
Genomes and GenesSpecies | G WintererSummaryAffiliation: Heinrich Heine University Country: Germany Publications
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Detail Information
Publications
Genes, dopamine and cortical signal-to-noise ratio in schizophreniaGeorg Winterer
Genes, Cognition and Psychosis Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
Trends Neurosci 27:683-90. 2004..In schizophrenia, an abnormal cortical dopamine D1/D2 activation ratio - in concert with, and in part related to, altered GABA and glutamate transmission - appears to interfere crucially with this process...
Why do patients with schizophrenia smoke?Georg Winterer
Department of Psychiatry, Heinrich Heine University Duesseldorf, Duesseldorf, Germany
Curr Opin Psychiatry 23:112-9. 2010..Understanding the reasons may also help to develop new drugs that target the nicotinic system in the brain as well as smoking cessation programs that are specifically designed for this particular patient population...
Association of 5' end neuregulin-1 (NRG1) gene variation with subcortical medial frontal microstructure in humansGeorg Winterer
Department of Psychiatry, Heinrich Heine University, Bergische Landstr 2, 40629 Duesseldorf, Germany
Neuroimage 40:712-8. 2008..By extension, our findings suggest that SNP8NRG221533 may contribute to the risk for the complex polygenic illness schizophrenia via its impact on myelination in frontal lobe white matter...
Association of attentional network function with exon 5 variations of the CHRNA4 geneGeorg Winterer
Department of Psychiatry, Henirich Heine University, Duesseldorf, Germany
Hum Mol Genet 16:2165-74. 2007..If confirmed, future studies need to address what 'functional' polymorphisms are causative for the observed effects...
Complex relationship between BOLD signal and synchronization/desynchronization of human brain MEG oscillationsGeorg Winterer
MEG Core Facility, National Institute of Mental Health, National Institutes of Health, Bethesda, USA
Hum Brain Mapp 28:805-16. 2007....
COMT genotype predicts BOLD signal and noise characteristics in prefrontal circuitsGeorg Winterer
Department of Psychiatry, Heinrich Heine University, Duesseldorf, Germany
Neuroimage 32:1722-32. 2006..In the present study, we addressed the question of whether the prefrontal SNR of the BOLD response is decreased in Val carriers using a visual oddball task and an approach to analysis of fMRI data that maximizes noise characterization...
Cortical microcircuits in schizophrenia--the dopamine hypothesis revisitedG Winterer
Department of Psychiatry, Heinrich Heine University Hospital Duesseldorf, Germany
Pharmacopsychiatry 39:S68-71. 2006..In schizophrenia, a diminished cortical dopamine D1/D2 activation ratio--in concert with altered GABAergic and glutamatergic transmission--appear to critically interfere with this process...
Schizophrenia: reduced signal-to-noise ratio and impaired phase-locking during information processingG Winterer
Clinical Brain Disorder Branch, National Institute of Mental Health, 10 Center Drive, Room 4S235 MSC 1379, Bethesda, USA
Clin Neurophysiol 111:837-49. 2000....
Brain activation patterns underlying fast habituation to painful laser stimuliA Mobascher
Neuropsychiatric Research Laboratory, Department of Psychiatry, Heinrich Heine University Duesseldorf, Germany
Int J Psychophysiol 75:16-24. 2010....
Fluctuations in electrodermal activity reveal variations in single trial brain responses to painful laser stimuli--a fMRI/EEG studyA Mobascher
Department of Psychiatry, Neuropsychiatric Research Laboratory, Heinrich Heine University, Duesseldorf, Germany
Neuroimage 44:1081-92. 2009..Thus, EDA is a useful additional, objective index when pain is studied with fMRI/EEG which might be of particular relevance in the context of genetic- and pharmacoimaging...
Cortical activation, signal-to-noise ratio and stochastic resonance during information processing in manG Winterer
Department of Psychiatry, Free University of Berlin, Germany
Clin Neurophysiol 110:1193-203. 1999....
P300 and LORETA: comparison of normal subjects and schizophrenic patientsG Winterer
Department of Psychiatry, Free University Berlin, Germany
Brain Topogr 13:299-313. 2001..The data further suggest that the P300-deficit in schizophrenics involves an extended cortical network of the left hemisphere at several steps in time during the information processing stream...
The tolerability of rTMS treatment in schizophrenia with respect to cognitive functionM Mittrach
Department of Psychiatry and Psychotherapy, Heinrich Heine University, Dusseldorf, Germany
Pharmacopsychiatry 43:110-7. 2010..The purpose of this study was to assess tolerability and safety of high-frequency rTMS with regard to cognitive performance when conducted as "add-on" treatment in chronic schizophrenia in-patients (n=32)...
Laser-evoked potential P2 single-trial amplitudes covary with the fMRI BOLD response in the medial pain system and interconnected subcortical structuresA Mobascher
Department of Psychiatry, Heinrich Heine University, Duesseldorf, Germany
Neuroimage 45:917-26. 2009..Furthermore, our findings suggest a concerted effort of the ACC and the amygdala in the cognitive-emotional evaluation of pain...
Frontal dysfunction in schizophrenia--a new electrophysiological classifier for research and clinical applicationsG Winterer
Clinical Brain Disorder Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
Eur Arch Psychiatry Clin Neurosci 250:207-14. 2000..It is proposed that this new classifier can be useful for clinical and research applications when subtyping of schizophrenics with detection of frontal dysfunction as the aim...
Evaluation of an allelic association of the serotonin 5-HT1B G681C polymorphism with antisocial alcoholism in the German populationT Sander
Department of Psychiatry, University Hospital Charite, Campus Virchow Clinic, Humboldt University of Berlin, Berlin, Germany
Addict Biol 5:167-72. 2000..52). Our results do not provide evidence that the 861C allele contributes a substantial vulnerability effect to antisocial behavior in German alcohol-dependent subjects...
Single-trial P3 amplitude and latency informed event-related fMRI models yield different BOLD response patterns to a target detection taskT Warbrick
Department of Psychiatry, Heinrich Heine University, Duesseldorf, Germany
Neuroimage 47:1532-44. 2009..Our findings suggest that ERP amplitudes and latencies can yield different activation patterns when used to modify relevant aspects of the GLM...
Association of a variant in the muscarinic acetylcholine receptor 2 gene (CHRM2) with nicotine addictionA Mobascher
Department of Psychiatry, Neuropsychiatric Research Laboratory, Heinrich Heine University, Duesseldorf, Germany
Am J Med Genet B Neuropsychiatr Genet 153:684-90. 2010..Alternatively, variations in CHRM2 could modulate presynaptic auto-regulation in cholinergic systems and may thereby affect an individual's response to nicotine more specifically...
Spontaneous brain activity and EEG microstates. A novel EEG/fMRI analysis approach to explore resting-state networksF Musso
Department of Psychiatry, Heinrich Heine University Duesseldorf, Duesseldorf, Germany
Neuroimage 52:1149-61. 2010....
Smoking impacts on prefrontal attentional network function in young adult brainsFrancesco Musso
Department of Psychiatry, Heinrich Heine University, Bergische Landstr 2, 40629 Duesseldorf, Germany
Psychopharmacology (Berl) 191:159-69. 2007..In contrast, little is known about potentially neurotoxic effects on the attentional network during neurodevelopmentally critical periods, such as during adolescence and early adulthood...
Instability of prefrontal signal processing in schizophreniaGeorg Winterer
Genes, Cognition and Psychosis Program, NIH, NIMH, 10 Center Dr, MSC 1379, Bethesda, MD 20892, USA
Am J Psychiatry 163:1960-8. 2006..CONCLUSIONS: These findings suggest that unstable cortical signal processing underlies classic abnormal cortical activation patterns as well as psychosis in schizophrenia...
An association between reduced interhemispheric EEG coherence in the temporal lobe and genetic risk for schizophreniaG Winterer
Clinical Brain Disorder Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892 1379, USA
Schizophr Res 49:129-43. 2001..Thus, while power spectrum EEG abnormalities may be state-dependent, reduced coherence as a possible measure of neuronal synchronization is familial and potentially a heritable trait related to genetic risk for schizophrenia...
Genetic variation of the glutamate transporter EAAT2 gene and vulnerability to alcohol dependenceT Sander
Department of Psychiatry, University Hospital Benjamin Franklin, Free University of Berlin, Germany
Psychiatr Genet 10:103-7. 2000..009). These two consistent lines of evidence suggest that genetic variation of the EAAT2 gene confers vulnerability to risk-taking behavior in alcoholics...
The P300 event-related potential and smoking--a population-based case-control studyA Mobascher
Neuropsychiatric Research Laboratory, Department of Psychiatry, Heinrich Heine University, Duesseldorf, Germany
Int J Psychophysiol 77:166-75. 2010..Our results provide the phenotypical groundwork for future multidimensional analyses of genotype-phenotype relationships in the field of smoking and nicotine dependence...
Hypofrontality -- a risk-marker related to schizophrenia?Y Wuebben
Department of Psychiatry, Free University of Berlin, Eschenallee 3, 14050 Berlin, Germany
Schizophr Res 48:207-17. 2001..However, since it is controversial whether subjects with schizotypal personality are at increased risk for schizophrenia, further studies in unaffected family members of schizophrenic patients are needed...
[Effects of nicotine on neurodevelopment]C Wessels
Psychiatrische Klinik, Heinrich Heine Universitat, 40629, Dusseldorf
Nervenarzt 79:7-8, 10-2, 14-6. 2008..More public awareness training and medical education are required to avoid nicotine abuse in pregnant women, children, and adolescents...
Association of the G1947A COMT (Val(108/158)Met) gene polymorphism with prefrontal P300 during information processingJurgen Gallinat
Laboratory for Clinical Psychophysiology, Department of Psychiatry, Free University, Berlin, Germany and National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
Biol Psychiatry 54:40-8. 2003..It was predicted that homozygous Met allele carriers have a lower frontal P300 amplitude...
Prefrontal electrophysiologic "noise" and catechol-O-methyltransferase genotype in schizophreniaGeorg Winterer
Genes, Cognition and Psychosis Program, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
Biol Psychiatry 60:578-84. 2006....
Electrophysiological subtypes of psychotic statesE R John
Brain Research Laboratories, Department of Psychiatry, New York University School of Medicine, New York, NY 10016, USA
Acta Psychiatr Scand 116:17-35. 2007..This research sought neurobiological features common to psychotic states displayed by patients with different clinical diagnoses...
The molecular and cellular neurobiology of nicotine abuse in schizophreniaA Mobascher
Department of Psychiatry, Heinrich Heine University, Duesseldorf, Germany
Pharmacopsychiatry 41:S51-9. 2008....
Repetitive transcranial magnetic stimulation for the treatment of negative symptoms in residual schizophrenia: rationale and design of a sham-controlled, randomized multicenter studyJoachim Cordes
Department of Psychiatry and Psychotherapy, Heinrich Heine University of Dusseldorf, Bergische Landstr 2, 40629 Düsseldorf, Germany
Eur Arch Psychiatry Clin Neurosci 259:S189-97. 2009..Main limitations of the trial are the potential influence of antipsychotic dosage changes and the difficulty to ensure adequate blinding...
Association analysis of GABAAbeta2 and gamma2 gene polymorphisms with event-related prefrontal activity in manG Winterer
Department of Psychiatry, University Hospital Benjamin Franklin, Free University of Berlin, Germany
Hum Genet 107:513-8. 2000....
EEG phenotype in alcoholism: increased coherence in the depressive subtypeG Winterer
Clinical Brain Disorders Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
Acta Psychiatr Scand 108:51-60. 2003..However, it is unclear whether alpha power and coherence differences reflect reversible toxic or withdrawal effects of alcohol...
Prefrontal broadband noise, working memory, and genetic risk for schizophreniaGeorg Winterer
Clinical Brain Disorders Branch, National Institute of Mental Health, Bethesda, MD 20892, USA
Am J Psychiatry 161:490-500. 2004..In the present study, the authors explored whether this particular physiological abnormality predicts working memory performance and is related to the genetic risk for schizophrenia...
P300 and genetic risk for schizophreniaGeorg Winterer
Clinical Brain Disorders Branch, National Institute of Mental Health, National Institutes of Health, Building 10, Room 4s229A, MSC 1379, Bethesda, MD 20892, USA
Arch Gen Psychiatry 60:1158-67. 2003....
Distributed BOLD-response in association cortex vector state space predicts reaction time during selective attentionFrancesco Musso
Laboratory of Molecular Neuroimaging and Electrophysiology, Department of Psychiatry, Johannes Gutenberg-University Hospital, Untere Zahlbacherstr. 8, 55131 Mainz, Germany
Neuroimage 29:1311-8. 2006....
Event-related potentials and genetic risk for schizophreniaG Winterer
Clinical Brain Disorders Branch, NIMH/NIH, Building 10, Room 4S229A MSC, Bethesda, MD 20892, USA
Biol Psychiatry 50:407-17. 2001..Possible reasons for these largely negative findings are discussed...
Cortical hypoactivation during resting EEG in schizophrenics but not in depressives and schizotypal subjects as revealed by low resolution electromagnetic tomography (LORETA)Susanne Mientus
Department of Psychiatry, Free University of Berlin, Berlin, Germany
Psychiatry Res 116:95-111. 2002..The results are discussed within a neurophysiological and methodological framework...
Frontal and temporal dysfunction of auditory stimulus processing in schizophreniaJurgen Gallinat
Department of Psychiatry, Free University, Berlin, Germany
Neuroimage 17:110-27. 2002..This would be in line with the notion that attention deficits in schizophrenia involve an extended cortical network...
Genetics of human prefrontal functionGeorg Winterer
Clinical Brain Disorders Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
Brain Res Brain Res Rev 43:134-63. 2003..Special emphasis is also given to methodological concerns that need to be addressed when conducting research on the genetics of prefrontal function in humans...
Association of EEG coherence and an exonic GABA(B)R1 gene polymorphismGeorg Winterer
Department of Psychiatry, University Hospital Benjamin Franklin, Free University of Berlin, Berlin, Germany
Am J Med Genet B Neuropsychiatr Genet 117:51-6. 2003..Since variations of EEG coherence have been described for several neuropsychiatric disorders, the present association should be tested in clinical samples using EEG coherence as an intermediate phenotype...
The relationship between reaction time, error rate and anterior cingulate cortex activityChristoph Mulert
Laboratory for Clinical Psychophysiology, Department of Psychiatry, Free University, Berlin, Germany
Int J Psychophysiol 47:175-83. 2003..This finding suggests that increased ACC activity is associated with a gain in reaction speed at the expense of correctness and is discussed in the context of current concepts about the role of the ACC in cognitive functions...
Potential clinical targets of repetitive transcranial magnetic stimulation treatment in schizophreniaJ Cordes
Department of Psychiatry and Psychotherapy, Heinrich Heine University, Bergische Landstrasse 2, DE 40629 Düsseldorf, Germany
Neuropsychobiology 54:87-99. 2006..The currently available data provide insufficient evidence to support the use of rTMS as an adjuvant treatment for schizophrenic psychopathology, but encourage further investigation of rTMS as a novel treatment approach...
Disturbed structural connectivity in schizophrenia primary factor in pathology or epiphenomenon?Andreas Konrad
Department of Psychiatry, Johannes Gutenberg University, Mainz, Germany
Schizophr Bull 34:72-92. 2008....
Volition to action--an event-related fMRI studyGeorg Winterer
Clinical Brain Disorders Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
Neuroimage 17:851-8. 2002..These results are in line with our previous electrophysiological findings and provide further evidence that early ACC activation during a choice reaction task reflects the intentional effort of a subject to carry out a task...
Allelic variants of the functional promoter polymorphism of the human serotonin transporter gene is associated with auditory cortical stimulus processingJurgen Gallinat
Department of Psychiatry, Free University of Berlin, Eschenallee 3, 14050 Berlin, Germany
Neuropsychopharmacology 28:530-2. 2003..The LD may serve as endophenotype in human serotonin research...
Functional and effective frontotemporal connectivity and genetic risk for schizophreniaGeorg Winterer
Clinical Brain Disorders Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
Biol Psychiatry 54:1181-92. 2003..The reasons why frontotemporal connectivity appears to be a poor predictor of genetic risk for schizophrenia are discussed...
Ultrastructural hippocampal and white matter alterations in mild cognitive impairment: a diffusion tensor imaging studyAndreas Fellgiebel
Department of Psychiatry, University of Mainz, Mainz, Germany
Dement Geriatr Cogn Disord 18:101-8. 2004..4% (with a specificity set at 80%). Therefore, the DTI technique validates the MCI concept, and diffusion tensor MR measurement can be a helpful tool to quantify MCI pathology in vivo...
The val158met polymorphism of human catechol-O-methyltransferase (COMT) affects anterior cingulate cortex activation in response to painful laser stimulationArian Mobascher
Department of Psychiatry, Johannes Gutenberg University, Untere Zahlbacher Str 8, 55131, Germany
Mol Pain 6:32. 2010..In the present fMRI study we therefore sought to investigate the impact of the COMT val158met polymorphism on the blood oxygen level-dependent (BOLD) response to painful laser stimulation...
Effects of 10 Hz repetitive transcranial magnetic stimulation (rTMS) on clinical global impression in chronic schizophreniaJoachim Cordes
Department of Psychiatry and Psychotherapy, Heinrich Heine University of Dusseldorf, Bergische Landstr 2, D 40629 Düsseldorf, Germany
Psychiatry Res 177:32-6. 2010..However, in our study this beneficial effect was restricted to subjects with pronounced negative symptoms. CLINICAL TRIAL REGISTRATION INFORMATION: ClinicalTrial.gov Identifier: NCT00169689, http://www.clinicaltrials.gov...
Preliminary experience with an ampakine (CX516) as a single agent for the treatment of schizophrenia: a case seriesStefano Marenco
Intramural Research Program, Clinical Brain Disorders Branch, National Institute of Mental Health, Building 10, Room 4S235, Bethesda, MD 20892, USA
Schizophr Res 57:221-6. 2002..No clear improvement in psychosis or in cognition was observed over the course of the study. CX516 at the doses tested did not appear to yield dramatic effects as a sole agent, but inference from this study is limited...
Association analysis of exonic variants of the GABA(B)-receptor gene and alpha electroencephalogram voltage in normal subjects and alcohol-dependent patientsGeorg Winterer
Department of Psychiatry, Benjamin Franklin University Hospital, Free University of Berlin, Berlin, Germany
Behav Genet 33:7-15. 2003....
Quantitative EEG in progressing vs stable mild cognitive impairment (MCI): results of a 1-year follow-up studyChristian Luckhaus
Department of Psychiatry and Psychotherapy, Heinrich Heine University, Duesseldorf, Germany
Int J Geriatr Psychiatry 23:1148-55. 2008..The study objective is to evaluate the use of qEEG data for the cross-sectional differentiation of mild cognitive impairment (MCI) from mild Alzheimer's disease (AD) and in the longitudinal prediction of cognitive decline in MCI...
Association of elevated phospho-tau levels with Alzheimer-typical 18F-fluoro-2-deoxy-D-glucose positron emission tomography findings in patients with mild cognitive impairmentAndreas Fellgiebel
Department of Psychiatry, University of Mainz, Mainz, Germany
Biol Psychiatry 56:279-83. 2004....
Genetic variations of the NR3A subunit of the NMDA receptor modulate prefrontal cerebral activity in humansJurgen Gallinat
Klinik für Psychiatrie and Psychotherapie, Charite Universitatsmedizin, Berlin
J Cogn Neurosci 19:59-68. 2007..Because the NR3A is expressed in the human prefrontal cortex, we hypothesized that genetic variations of the NR3A subunit modulate prefrontal activation...
Valproate and GABAergic system effectsGeorg Winterer
Neuropsychopharmacology 28:2050-1. 2003
Association of the met66 allele of brain-derived neurotrophic factor (BDNF) with smokingUndine E Lang
Department of Psychiatry and Psychotherapy, University of Dresden, Fetscherstr 74, 01307, Dresden, Germany
Psychopharmacology (Berl) 190:433-9. 2007..In this study, we addressed the question if a common BDNF missense variation (Val66Met) influences the risk for smoking behavior in otherwise healthy human volunteers...
Evidence for the importance of the human dopamine transporter gene for withdrawal symptomatology of alcoholics in a German populationCatrin Wernicke
Department of Clinical Neurobiology, Benjamin Franklin Medical School, Free University of Berlin, Ulmenallee 32, D 14050 Berlin, Germany
Neurosci Lett 333:45-8. 2002..032, OR = 4.707), and with an alcoholic mother (P = 0.021, OR = 5.250), compared to homozygote 10/10 controls. Our findings provide further evidence that the 3'UTR of the DAT1 gene affects vulnerability to severe alcohol withdrawal...
Persistent dysfunctional frontal lobe activation in former smokersAndres Neuhaus
Department of Psychiatry and Psychotherapy, , Campus Benjamin Franklin, Berlin, Germany
Psychopharmacology (Berl) 186:191-200. 2006..A similar profile of hypoactivation was observed in former smokers. CONCLUSION: For the first time, evidence is provided that dysfunctional activation of frontal lobe networks in smokers is also present in long term abstainers...
Polymorphisms in the N-methyl-D-aspartate receptor 1 and 2B subunits are associated with alcoholism-related traitsCatrin Wernicke
Department of Clinical Neurobiology, University Hospital Benjamin Franklin, Free University of Berlin, Berlin, Germany
Biol Psychiatry 54:922-8. 2003..This study examined the hypothesis that allelic variants of the ionotropic glutamatergic N-methyl-D-aspartate receptor (NMDAR) are associated with vulnerability to alcoholism and some related traits...
Neurophysiological biomarkers for drug development in schizophreniaDaniel C Javitt
Nathan Kline Institute for Schizophrenia Research New York University School of Medicine, 140 Old Orangeburg Road, Orangeburg, New York 10962, USA
Nat Rev Drug Discov 7:68-83. 2008..Moreover, many of these neurophysiological processes are phylogenetically conserved and can be modelled in preclinical studies, offering unique opportunities for use as translational biomarkers in schizophrenia drug discovery...
EEG microstate duration and syntax in acute, medication-naive, first-episode schizophrenia: a multi-center studyDietrich Lehmann
The KEY Institute for Brain Mind Research, University Hospital of Psychiatry, CH 8029 Zurich, Switzerland
Psychiatry Res 138:141-56. 2005..The intermittent occurrence might account for Bleuler's "double bookkeeping." The disturbed microstate syntax opens a novel physiological comparison of mental operations between patients and controls...
