Thomas Polak

Summary

Country: Germany

Publications

  1. ncbi request reprint Non-invasive measurement of vagus activity in the brainstem - a methodological progress towards earlier diagnosis of dementias?
    T Polak
    Laboratory for Psychophysiology and Functional Imaging, Department of Psychiatry and Psychotherapy, Julius Maximilians University, Wurzburg, Germany
    J Neural Transm 114:613-9. 2007
  2. doi request reprint Vagus somatosensory evoked potentials are delayed in Alzheimer's disease, but not in major depression
    Thomas Polak
    Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Wuerzburg, Fuechsleinstrasse 15, 97080, Wuerzburg, Germany
    Eur Arch Psychiatry Clin Neurosci 264:263-7. 2014
  3. doi request reprint Vagus somatosensory-evoked potentials are prolonged in patients with multiple sclerosis with brainstem involvement
    Thomas Polak
    Department of Psychiatry, Psychosomatics and Psychotherapy, Laboratory for Psychophysiology and Functional Imaging, University Clinic Wuerzburg, Wuerzburg, Germany
    Neuroreport 24:251-3. 2013
  4. doi request reprint Far field potentials from brain stem after transcutaneous vagus nerve stimulation: optimization of stimulation and recording parameters
    Thomas Polak
    Laboratory for Psychophysiology and Functional Imaging, Department of Psychiatry, Psychosomatics and Psychotherapy, Julius Maximilians University, 97080 Wurzburg, Germany
    J Neural Transm 116:1237-42. 2009
  5. doi request reprint Auricular vagus somatosensory evoked potentials in vascular dementia
    Thomas Polak
    Laboratory for Psychophysiology and Functional Imaging, Department of Psychiatry, Psychosomatics and Psychotherapy, Julius Maximilians University, Fuechsleinstrasse 15, 97080, Wuerzburg, Germany
    J Neural Transm 116:473-7. 2009
  6. doi request reprint Functional amygdala-hippocampus connectivity during anticipation of aversive events is associated with Gray's trait "sensitivity to punishment"
    Tim Hahn
    Department of Psychiatry, Psychosomatics and Psychotherapy, Psychophysiology and Functional Imaging, University Hospital Wuerzburg, Germany
    Biol Psychiatry 68:459-64. 2010
  7. doi request reprint Vagus somatosensory evoked potentials--a possibility for diagnostic improvement in patients with mild cognitive impairment?
    Florian G Metzger
    Psychophysiology and Optical Imaging, Department of Psychiatry and Psychotherapy, University Hospital Tuebingen, Tuebingen, Germany
    Dement Geriatr Cogn Disord 33:289-96. 2012
  8. doi request reprint Altered parietal brain oxygenation in Alzheimer's disease as assessed with near-infrared spectroscopy
    Julia B M Zeller
    Department of Psychophysiology and Functional Imaging, University of Wuerzburg, Wuerzburg, Germany
    Am J Geriatr Psychiatry 18:433-41. 2010
  9. doi request reprint Recovery of cortical functioning in abstinent alcohol-dependent patients: prefrontal brain oxygenation during verbal fluency at different phases during withdrawal
    Thomas Dresler
    Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Wuerzburg, Germany
    World J Biol Psychiatry 13:135-45. 2012
  10. doi request reprint Is there a negative interpretation bias in depressed patients? An affective startle modulation study
    Mirjam Käse
    Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Wuerzburg, Wuerzburg, Germany
    Neuropsychobiology 67:201-9. 2013

Detail Information

Publications11

  1. ncbi request reprint Non-invasive measurement of vagus activity in the brainstem - a methodological progress towards earlier diagnosis of dementias?
    T Polak
    Laboratory for Psychophysiology and Functional Imaging, Department of Psychiatry and Psychotherapy, Julius Maximilians University, Wurzburg, Germany
    J Neural Transm 114:613-9. 2007
    ..05). Future large scale studies - also including preclinical stages of AD - have to assess the value of this non-invasive, fast and cheap method in the early diagnosis of neurodegenerative disorders...
  2. doi request reprint Vagus somatosensory evoked potentials are delayed in Alzheimer's disease, but not in major depression
    Thomas Polak
    Department of Psychiatry, Psychosomatics and Psychotherapy, University Clinic Wuerzburg, Fuechsleinstrasse 15, 97080, Wuerzburg, Germany
    Eur Arch Psychiatry Clin Neurosci 264:263-7. 2014
    ..In the AD, not in the MD group, latencies were significantly longer as compared to controls. Thus, the method of VSEP could contribute to the important differential diagnosis of AD and MD in elderly patients. ..
  3. doi request reprint Vagus somatosensory-evoked potentials are prolonged in patients with multiple sclerosis with brainstem involvement
    Thomas Polak
    Department of Psychiatry, Psychosomatics and Psychotherapy, Laboratory for Psychophysiology and Functional Imaging, University Clinic Wuerzburg, Wuerzburg, Germany
    Neuroreport 24:251-3. 2013
    ..The method could be suitable for the demonstration of the involvement of differential brainstem nuclei in various neurodegenerative diseases...
  4. doi request reprint Far field potentials from brain stem after transcutaneous vagus nerve stimulation: optimization of stimulation and recording parameters
    Thomas Polak
    Laboratory for Psychophysiology and Functional Imaging, Department of Psychiatry, Psychosomatics and Psychotherapy, Julius Maximilians University, 97080 Wurzburg, Germany
    J Neural Transm 116:1237-42. 2009
    ..Improved methodological knowledge may facilitate the assessment of this non-invasive and cost-effective method in the early diagnosis of neurodegenerative disorders...
  5. doi request reprint Auricular vagus somatosensory evoked potentials in vascular dementia
    Thomas Polak
    Laboratory for Psychophysiology and Functional Imaging, Department of Psychiatry, Psychosomatics and Psychotherapy, Julius Maximilians University, Fuechsleinstrasse 15, 97080, Wuerzburg, Germany
    J Neural Transm 116:473-7. 2009
    ..Thus, we hypothesize that the new method of VSEP could possibly contribute to a differential diagnosis between early cases of AD and VaD...
  6. doi request reprint Functional amygdala-hippocampus connectivity during anticipation of aversive events is associated with Gray's trait "sensitivity to punishment"
    Tim Hahn
    Department of Psychiatry, Psychosomatics and Psychotherapy, Psychophysiology and Functional Imaging, University Hospital Wuerzburg, Germany
    Biol Psychiatry 68:459-64. 2010
    ....
  7. doi request reprint Vagus somatosensory evoked potentials--a possibility for diagnostic improvement in patients with mild cognitive impairment?
    Florian G Metzger
    Psychophysiology and Optical Imaging, Department of Psychiatry and Psychotherapy, University Hospital Tuebingen, Tuebingen, Germany
    Dement Geriatr Cogn Disord 33:289-96. 2012
    ..vagus in the lower brainstem. They represent a putative, easily applicable method for discrimination between patients with Alzheimer's disease (AD), patients with mild cognitive impairment (MCI), and healthy controls (HC)...
  8. doi request reprint Altered parietal brain oxygenation in Alzheimer's disease as assessed with near-infrared spectroscopy
    Julia B M Zeller
    Department of Psychophysiology and Functional Imaging, University of Wuerzburg, Wuerzburg, Germany
    Am J Geriatr Psychiatry 18:433-41. 2010
    ..The aim of this study was to probe the activation of parietal regions in patients with AD, performing a visuospatial task by means of functional NIRS (fNIRS)...
  9. doi request reprint Recovery of cortical functioning in abstinent alcohol-dependent patients: prefrontal brain oxygenation during verbal fluency at different phases during withdrawal
    Thomas Dresler
    Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Wuerzburg, Germany
    World J Biol Psychiatry 13:135-45. 2012
    ..However, only few functional imaging studies investigated altered neural patterns and even less abstinence-related neural recovery...
  10. doi request reprint Is there a negative interpretation bias in depressed patients? An affective startle modulation study
    Mirjam Käse
    Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital Wuerzburg, Wuerzburg, Germany
    Neuropsychobiology 67:201-9. 2013
    ..Scientists proposed that patients with depression favour negative interpretations when appraising ambiguity. As self-report measures seem prone to response bias, implicit measures of emotional valence should be additionally used...
  11. doi request reprint Neural response to reward anticipation is modulated by Gray's impulsivity
    Tim Hahn
    University of Wuerzburg, Department of Psychiatry, Psychosomatics and Psychotherapy, Wuerzburg, Germany
    Neuroimage 46:1148-53. 2009
    ....