Martin Walter

Summary

Affiliation: Otto-von-Guericke University
Country: Germany

Publications

  1. doi request reprint Distinguishing specific sexual and general emotional effects in fMRI-subcortical and cortical arousal during erotic picture viewing
    Martin Walter
    Department of Psychiatry, University Hospital, Magdeburg, Germany
    Neuroimage 40:1482-94. 2008
  2. doi request reprint High resolution fMRI of subcortical regions during visual erotic stimulation at 7 T
    Martin Walter
    Department of Psychiatry, University Hospital Otto v Guericke University, Leipziger Strasse 44, 39120 Magdeburg, Germany
    MAGMA 21:103-11. 2008
  3. doi request reprint The relationship between aberrant neuronal activation in the pregenual anterior cingulate, altered glutamatergic metabolism, and anhedonia in major depression
    Martin Walter
    Department of Psychiatry, Ottovon Guericke University of Magdeburg, Magdeburg, Germany
    Arch Gen Psychiatry 66:478-86. 2009
  4. ncbi request reprint Preceding attention and the dorsomedial prefrontal cortex: process specificity versus domain dependence
    Martin Walter
    Department of Psychiatry, Otto von Guericke University Magdeburg, Magdeburg, Germany
    Hum Brain Mapp 30:312-26. 2009
  5. doi request reprint Modulation of attention network activation under antidepressant agents in healthy subjects
    Heiko Graf
    Department of Psychiatry, Ulm University, Ulm, Germany
    Int J Neuropsychopharmacol 16:1219-30. 2013
  6. doi request reprint Systematic regional variations of GABA, glutamine, and glutamate concentrations follow receptor fingerprints of human cingulate cortex
    Weiqiang Dou
    Biomedical Magnetic Resonance, Otto von Guericke University, 39120 Magdeburg, Germany
    J Neurosci 33:12698-704. 2013
  7. doi request reprint Bridging the gap between the immune and glutamate hypotheses of schizophrenia and major depression: Potential role of glial NMDA receptor modulators and impaired blood-brain barrier integrity
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Magdeburg, Germany
    World J Biol Psychiatry 13:482-92. 2012
  8. doi request reprint Modulation of frontostriatal interaction aligns with reduced primary reward processing under serotonergic drugs
    Birgit Abler
    Department of Psychiatry, University of Ulm, 89075 Ulm, Germany
    J Neurosci 32:1329-35. 2012
  9. doi request reprint Acute schizophrenia is accompanied by reduced T cell and increased B cell immunity
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Germany
    Eur Arch Psychiatry Clin Neurosci 260:509-18. 2010
  10. doi request reprint Disease severity is correlated to tract specific changes of fractional anisotropy in MD and CM thalamus--a DTI study in major depressive disorder
    Annemarie Osoba
    Department of Psychiatry, Otto von Guericke University, Magdeburg, Germany
    J Affect Disord 149:116-28. 2013

Detail Information

Publications23

  1. doi request reprint Distinguishing specific sexual and general emotional effects in fMRI-subcortical and cortical arousal during erotic picture viewing
    Martin Walter
    Department of Psychiatry, University Hospital, Magdeburg, Germany
    Neuroimage 40:1482-94. 2008
    ..No differences were found in these effects when comparing females and males. Our findings demonstrate for the first time neural differentiation between emotional and sexual components in the neural network underlying sexual arousal...
  2. doi request reprint High resolution fMRI of subcortical regions during visual erotic stimulation at 7 T
    Martin Walter
    Department of Psychiatry, University Hospital Otto v Guericke University, Leipziger Strasse 44, 39120 Magdeburg, Germany
    MAGMA 21:103-11. 2008
    ....
  3. doi request reprint The relationship between aberrant neuronal activation in the pregenual anterior cingulate, altered glutamatergic metabolism, and anhedonia in major depression
    Martin Walter
    Department of Psychiatry, Ottovon Guericke University of Magdeburg, Magdeburg, Germany
    Arch Gen Psychiatry 66:478-86. 2009
    ..Major depressive disorder (MDD) is characterized by diverse metabolic and functional abnormalities that occur in, among other regions, the pregenual anterior cingulate cortex (pgACC), a cortical region linked to anhedonia...
  4. ncbi request reprint Preceding attention and the dorsomedial prefrontal cortex: process specificity versus domain dependence
    Martin Walter
    Department of Psychiatry, Otto von Guericke University Magdeburg, Magdeburg, Germany
    Hum Brain Mapp 30:312-26. 2009
    ..This suggests that the anterior and posterior DMPFC is involved in the process of attending mental states while remaining more (posterior DMPFC) or less (anterior DMPFC) independent of the type or domain of the respective stimulus...
  5. doi request reprint Modulation of attention network activation under antidepressant agents in healthy subjects
    Heiko Graf
    Department of Psychiatry, Ulm University, Ulm, Germany
    Int J Neuropsychopharmacol 16:1219-30. 2013
    ..Concurrent alterations of brain regions within a fronto-parietal and cingulo-opercular attention network for top-down control could point to basic neural mechanisms of antidepressant action irrespective of receptor profiles...
  6. doi request reprint Systematic regional variations of GABA, glutamine, and glutamate concentrations follow receptor fingerprints of human cingulate cortex
    Weiqiang Dou
    Biomedical Magnetic Resonance, Otto von Guericke University, 39120 Magdeburg, Germany
    J Neurosci 33:12698-704. 2013
    ....
  7. doi request reprint Bridging the gap between the immune and glutamate hypotheses of schizophrenia and major depression: Potential role of glial NMDA receptor modulators and impaired blood-brain barrier integrity
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Magdeburg, Germany
    World J Biol Psychiatry 13:482-92. 2012
    ..It is not clear, however, whether such changes are associated with corresponding neuroinflammatory responses and disturbances of neurotransmission...
  8. doi request reprint Modulation of frontostriatal interaction aligns with reduced primary reward processing under serotonergic drugs
    Birgit Abler
    Department of Psychiatry, University of Ulm, 89075 Ulm, Germany
    J Neurosci 32:1329-35. 2012
    ....
  9. doi request reprint Acute schizophrenia is accompanied by reduced T cell and increased B cell immunity
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Germany
    Eur Arch Psychiatry Clin Neurosci 260:509-18. 2010
    ..In addition to disease stage or subtype and medication, cigarette smoking and stress are important co-factors...
  10. doi request reprint Disease severity is correlated to tract specific changes of fractional anisotropy in MD and CM thalamus--a DTI study in major depressive disorder
    Annemarie Osoba
    Department of Psychiatry, Otto von Guericke University, Magdeburg, Germany
    J Affect Disord 149:116-28. 2013
    ..Especially thalamic disconnections have been functionally revealed, however, their structural correlates have not been distinctly investigated for its highly diverse subnuclei...
  11. pmc Severe depression is associated with increased microglial quinolinic acid in subregions of the anterior cingulate gyrus: evidence for an immune-modulated glutamatergic neurotransmission?
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Magdeburg, Germany
    J Neuroinflammation 8:94. 2011
    ..These peripheral immune processes may be accompanied by microglial activation in subregions of the anterior cingulate cortex where depression-associated alterations of glutamatergic neurotransmission have been described...
  12. ncbi request reprint Pedophilia is linked to reduced activation in hypothalamus and lateral prefrontal cortex during visual erotic stimulation
    Martin Walter
    Department of Psychiatry, Otto von Guericke University of Magdeburg, Leipziger Strasse 44, 39120 Magdeburg, Germany
    Biol Psychiatry 62:698-701. 2007
    ..Although pedophilic patients are sexually attracted to prepubescent children, they show no sexual interest toward adults. This study aimed to investigate the neural correlates of deficits of sexual and emotional arousal in pedophiles...
  13. doi request reprint The role of hippocampus dysfunction in deficient memory encoding and positive symptoms in schizophrenia
    Kathrin Zierhut
    Department of Psychiatry, Otto von Guericke University of Magdeburg, Germany
    Psychiatry Res 183:187-94. 2010
    ..Declarative memory disturbances, known to substantially contribute to cognitive impairment in schizophrenia, have previously been attributed to prefrontal as well as hippocampal dysfunction...
  14. doi request reprint S100B serum levels are closely correlated with body mass index: an important caveat in neuropsychiatric research
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Germany
    Psychoneuroendocrinology 35:321-4. 2010
    ..In conclusion, physiological S100B levels in humans appear to closely reflect adipose tissue mass, which should therefore be considered as an important confounding factor in clinical studies examining the role of S100B...
  15. ncbi request reprint Differential parametric modulation of self-relatedness and emotions in different brain regions
    Georg Northoff
    Department of Psychiatry, University of Magdeburg, Magdeburg, Germany
    Hum Brain Mapp 30:369-82. 2009
    ..hum..
  16. pmc S100B Serum Levels in Schizophrenia Are Presumably Related to Visceral Obesity and Insulin Resistance
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Leipziger Str 44, 39120 Magdeburg, Germany
    Cardiovasc Psychiatry Neurol 2010:480707. 2010
    ....
  17. doi request reprint Increased prevalence of diverse N-methyl-D-aspartate glutamate receptor antibodies in patients with an initial diagnosis of schizophrenia: specific relevance of IgG NR1a antibodies for distinction from N-methyl-D-aspartate glutamate receptor encephalitis
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Magdeburg, Germany
    JAMA Psychiatry 70:271-8. 2013
    ....
  18. ncbi request reprint GABA concentrations in the human anterior cingulate cortex predict negative BOLD responses in fMRI
    Georg Northoff
    Department of Psychiatry, Otto von Guericke University Magdeburg, Leipziger Strasse 44, 39120 Magdeburg, Germany
    Nat Neurosci 10:1515-7. 2007
    ..Our findings show that default-mode network negative BOLD responses during emotions are mediated by GABA...
  19. ncbi request reprint Disruption of glutamate-glutamine-GABA cycle significantly impacts on suicidal behaviour: survey of the literature and own findings on glutamine synthetase
    Hans Gert Bernstein
    Department of Psychiatry, University of Magdeburg, Leipziger Str 44, D 39120Magdeburg, Germany
    CNS Neurol Disord Drug Targets 12:900-13. 2013
    ....
  20. doi request reprint SSRI-related modulation of sexual functioning is predicted by pre-treatment resting state functional connectivity in healthy men
    Coraline D Metzger
    Department of Psychiatry and Psychotherapy, Centre for Behavioral Brain Sciences, Otto von Guericke University, Magdeburg, Germany
    Arch Sex Behav 42:935-47. 2013
    ....
  21. doi request reprint Preferential networks of the mediodorsal nucleus and centromedian-parafascicular complex of the thalamus--a DTI tractography study
    Ulf Eckert
    Department of Psychiatry, Otto von Guericke University, Magdeburg, Germany
    Hum Brain Mapp 33:2627-37. 2012
    ....
  22. pmc Neural correlates of antidepressant-related sexual dysfunction: a placebo-controlled fMRI study on healthy males under subchronic paroxetine and bupropion
    Birgit Abler
    Department of Psychiatry, University of Ulm, Ulm, Germany
    Neuropsychopharmacology 36:1837-47. 2011
    ..Drug effects on these regions may be part of the mechanism underlying SSRI-related sexual dysfunction. Increased activation under bupropion may point to an opposite effect that may relate to the lack of impaired sexual functioning...
  23. doi request reprint A new pathophysiological aspect of S100B in schizophrenia: potential regulation of S100B by its scavenger soluble RAGE
    Johann Steiner
    Department of Psychiatry, University of Magdeburg, Germany
    Biol Psychiatry 65:1107-10. 2009
    ..Our study focused on its scavenger, soluble receptor for advanced glycation end products (sRAGE). Given the benefits of sRAGE in metabolic and inflammatory diseases, we hypothesized a similar effect in schizophrenia...