Gregor Leicht

Summary

Affiliation: University of Munich
Country: Germany

Publications

  1. doi request reprint Reduced early auditory evoked gamma-band response in patients with schizophrenia
    Gregor Leicht
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University, 7D 80336 Munich, Germany
    Biol Psychiatry 67:224-31. 2010
  2. doi request reprint Alterations of the early auditory evoked gamma-band response in first-degree relatives of patients with schizophrenia: hints to a new intermediate phenotype
    Gregor Leicht
    University Medical Center Hamburg Eppendorf, Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch PNB, Hamburg, Germany
    J Psychiatr Res 45:699-705. 2011
  3. doi request reprint Separating distinct aspects of the voluntary selection between response alternatives: N2- and P3-related BOLD responses
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University Munich, Nussbaumstr 7, D 80336 Munich, Germany
    Neuroimage 51:356-64. 2010
  4. doi request reprint Attention to emotion: auditory-evoked potentials in an emotional choice reaction task and personality traits as assessed by the NEO FFI
    Verena Mittermeier
    Department of Psychiatry and Psychotherapy, LMU, Munich, Germany
    Eur Arch Psychiatry Clin Neurosci 261:111-20. 2011
  5. ncbi request reprint Neural correlates (ERP/fMRI) of voluntary selection in adult ADHD patients
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University Munich, Nussbaumstrasse 7, 80336, Munich, Germany
    Eur Arch Psychiatry Clin Neurosci 260:427-40. 2010
  6. ncbi request reprint Rostral anterior cingulate cortex activity in the theta band predicts response to antidepressive medication
    Christoph Mulert
    Department of Psychiatry, Ludwig Maximilians University, Munich, Germany
    Clin EEG Neurosci 38:78-81. 2007
  7. doi request reprint Increased γ oscillations during voluntary selection processes in adult patients with attention deficit/hyperactivity disorder
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University Munich, Nussbaumstrasse 7, 80336 Munich, Germany
    J Psychiatr Res 46:1515-23. 2012
  8. doi request reprint Benzodiazepines counteract rostral anterior cingulate cortex activation induced by cholecystokinin-tetrapeptide in humans
    Gregor Leicht
    Psychiatry Neuroimaging Branch, University Medical Center Hamburg Eppendorf, Department of Psychiatry and Psychotherapy, Psychiatry Neuroimiaging Branch, Hamburg, Germany
    Biol Psychiatry 73:337-44. 2013
  9. doi request reprint Impact of loudness dependency of auditory evoked potentials on the panic response to CCK-4
    Daniela Eser
    Department of Psychiatry and Psychotherapy, Ludwig Maximilian University, Nussbaumstrasse 7, 80336 Munich, Germany
    J Psychiatr Res 43:393-400. 2009
  10. ncbi request reprint Inefficient neural activity in patients with schizophrenia and nonpsychotic relatives of schizophrenic patients: evidence from a working memory task
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University, Nussbaumstrasse 7, D 80336 Munich, Germany
    J Psychiatr Res 43:1185-94. 2009

Detail Information

Publications19

  1. doi request reprint Reduced early auditory evoked gamma-band response in patients with schizophrenia
    Gregor Leicht
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University, 7D 80336 Munich, Germany
    Biol Psychiatry 67:224-31. 2010
    ..power and phase-locking in schizophrenic patients?; and 2) Is this possible decrease a result of reduced activity in the auditory cortex and/or the anterior cingulate cortex (ACC), which were identified as sources of the GBR previously?..
  2. doi request reprint Alterations of the early auditory evoked gamma-band response in first-degree relatives of patients with schizophrenia: hints to a new intermediate phenotype
    Gregor Leicht
    University Medical Center Hamburg Eppendorf, Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch PNB, Hamburg, Germany
    J Psychiatr Res 45:699-705. 2011
    ..marker as an intermediate phenotype for schizophrenia, this is the main question of our investigation: Is the early eGBR decreased regarding evoked power and phase locking in first-degree relatives of patients with schizophrenia?..
  3. doi request reprint Separating distinct aspects of the voluntary selection between response alternatives: N2- and P3-related BOLD responses
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University Munich, Nussbaumstr 7, D 80336 Munich, Germany
    Neuroimage 51:356-64. 2010
    ..In addition, at least some frontal brain regions seemed to be involved at an earlier stage than temporo-parietal regions, probably indicating a top-down process...
  4. doi request reprint Attention to emotion: auditory-evoked potentials in an emotional choice reaction task and personality traits as assessed by the NEO FFI
    Verena Mittermeier
    Department of Psychiatry and Psychotherapy, LMU, Munich, Germany
    Eur Arch Psychiatry Clin Neurosci 261:111-20. 2011
    ..Interestingly, subjects with high scores in the personality trait extraversion showed significantly higher EPN amplitudes for emotional paradigms (syllables and words) than introverted subjects...
  5. ncbi request reprint Neural correlates (ERP/fMRI) of voluntary selection in adult ADHD patients
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University Munich, Nussbaumstrasse 7, 80336, Munich, Germany
    Eur Arch Psychiatry Clin Neurosci 260:427-40. 2010
    ..These results may indicate that selection processes are related to dysfunctions, predominantly in frontal brain regions in ADHD patients...
  6. ncbi request reprint Rostral anterior cingulate cortex activity in the theta band predicts response to antidepressive medication
    Christoph Mulert
    Department of Psychiatry, Ludwig Maximilians University, Munich, Germany
    Clin EEG Neurosci 38:78-81. 2007
    ..In addition to major differences between responders and nonresponders in the rostral ACC, we have identified a nearby region in the midline orbito-frontal region...
  7. doi request reprint Increased γ oscillations during voluntary selection processes in adult patients with attention deficit/hyperactivity disorder
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University Munich, Nussbaumstrasse 7, 80336 Munich, Germany
    J Psychiatr Res 46:1515-23. 2012
    ..In addition, the error rate was increased in patients. Given that gamma-band responses have been related to GABAergic and glutamatergic responses these results may indicate accordant dysfunction in patients with ADHD...
  8. doi request reprint Benzodiazepines counteract rostral anterior cingulate cortex activation induced by cholecystokinin-tetrapeptide in humans
    Gregor Leicht
    Psychiatry Neuroimaging Branch, University Medical Center Hamburg Eppendorf, Department of Psychiatry and Psychotherapy, Psychiatry Neuroimiaging Branch, Hamburg, Germany
    Biol Psychiatry 73:337-44. 2013
    ..However, it is not fully understood which brain regions within anxiety-related brain circuits are really responsible for their anxiolytic effects and how these regions interact...
  9. doi request reprint Impact of loudness dependency of auditory evoked potentials on the panic response to CCK-4
    Daniela Eser
    Department of Psychiatry and Psychotherapy, Ludwig Maximilian University, Nussbaumstrasse 7, 80336 Munich, Germany
    J Psychiatr Res 43:393-400. 2009
    ..The analysis of the loudness dependency of the auditory evoked potentials (LDAEP) is a valid non-invasive indicator of central serotonergic activity...
  10. ncbi request reprint Inefficient neural activity in patients with schizophrenia and nonpsychotic relatives of schizophrenic patients: evidence from a working memory task
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University, Nussbaumstrasse 7, D 80336 Munich, Germany
    J Psychiatr Res 43:1185-94. 2009
    ..In addition, compensatory strategies were demonstrated. These findings suggest that the genetic risk for schizophrenia is accompanied by neural inefficiency which is associated with cognitive deficits, especially in difficult tasks...
  11. doi request reprint Single-trial EEG-fMRI coupling of the emotional auditory early posterior negativity
    Fern Jaspers-Fayer
    Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Centre of Hamburg Eppendorf, Neuroimaging North, Hamburg, Germany
    Neuroimage 62:1807-14. 2012
    ..Our results support previous parietal cortex source localization findings for the visual EPN, and suggest enhanced selective attention to emotional stimuli during the EPN time window...
  12. doi request reprint Glyoxalase-I mRNA expression and CCK-4 induced panic attacks
    Daniela Eser
    Department of Psychiatry and Psychotherapy, Ludwig Maximilian University, Nussbaumstrasse 7, 80336 Munich, Germany
    J Psychiatr Res 45:60-3. 2011
    ....
  13. ncbi request reprint Prediction of clinical response to antidepressants in patients with depression: neurophysiology in clinical practice
    Oliver Pogarell
    Department of Psychiatry, Ludwig Maximilians University, Munich, Germany
    Clin EEG Neurosci 38:74-7. 2007
    ..This review focuses on recent studies providing evidence for the validity of LD as an indirect serotonergic marker and highlights data on the clinical application in terms of prediction of treatment response in patients with depression...
  14. doi request reprint The free choice whether or not to respond after stimulus presentation
    Susanne Karch
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University Munich, Munich, Germany
    Hum Brain Mapp 30:2971-85. 2009
    ..g. somatosensory cortical areas). Altogether, decision processes were shown to be relatively independent of the kind of response chosen...
  15. doi request reprint Theta burst stimulation of the prefrontal cortex: safety and impact on cognition, mood, and resting electroencephalogram
    Nicola Grossheinrich
    Department of Psychiatry and Psychotherapy, Ludwig Maximilian University, Munich, Germany
    Biol Psychiatry 65:778-84. 2009
    ..Thus, the present study explores whether TBS is safe particularly in terms of effects on cognition, mood, and electroencephalogram (EEG) measures in healthy subjects...
  16. ncbi request reprint Functional neuroanatomy of CCK-4-induced panic attacks in healthy volunteers
    Daniela Eser
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University, Munich, Germany
    Hum Brain Mapp 30:511-22. 2009
    ..In conclusion, while overall brain activation patterns are not related to the subjective anxiety response to CCK-4, amygdala activation may be involved in the subjective perception of CCK-4-induced fear...
  17. doi request reprint Emotion regulation by cognitive reappraisal - the role of frontal theta oscillations
    Matthias Ertl
    Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch, Hamburg, Germany
    Neuroimage 81:412-21. 2013
    ....
  18. ncbi request reprint Evaluation of sham transcranial direct current stimulation for randomized, placebo-controlled clinical trials
    Ulrich Palm
    Department of Psychiatry and Psychotherapy, Ludwig Maximilians University Munich, Nussbaumstr 7, 80336 Munich, Germany
    Brain Stimul 6:690-5. 2013
    ....
  19. pmc Relationship between Oscillatory Neuronal Activity during Reward Processing and Trait Impulsivity and Sensation Seeking
    Gregor Leicht
    Department of Psychiatry and Psychotherapy, Psychiatry Neuroimaging Branch PNB, University Medical Center Hamburg Eppendorf, Hamburg, Germany
    PLoS ONE 8:e83414. 2013
    ..Thus, the aim of the present study was to investigate event-related oscillatory activity during reward processing across a wide spectrum of frequencies, and its associations with impulsivity and sensation seeking in healthy subjects...