Sönke Johannes

Summary

Affiliation: Hannover Medical School
Country: Germany

Publications

  1. ncbi request reprint Altered inhibition of motor responses in Tourette Syndrome and Obsessive-Compulsive Disorder
    S Johannes
    Department of Neuropsychology, Otto von Guericke Universitat, Magdeburg, Germany
    Acta Neurol Scand 104:36-43. 2001
  2. ncbi request reprint Electrophysiological measures and dual-task performance in Tourette syndrome indicate deficient divided attention mechanisms
    S Johannes
    Department of Neuropsychology, Otto von Guericke Universitat, Magdeburg, Germany
    Eur J Neurol 8:253-60. 2001
  3. ncbi request reprint Tourette syndrome and obsessive-compulsive disorder: event-related brain potentials show similar mechanisms [correction of mechansims] of frontal inhibition but dissimilar target evaluation processes
    Sönke Johannes
    Department of Neuropsychology, Otto von Guericke Universitat, Magdeburg, Germany
    Behav Neurol 14:9-17. 2003
  4. ncbi request reprint Excessive action monitoring in Tourette syndrome
    Sönke Johannes
    Department of Neurology, Medical School of Hannover, Germany
    J Neurol 249:961-6. 2002
  5. ncbi request reprint Discrepant target detection and action monitoring in obsessive-compulsive disorder
    S Johannes
    Department of Neuropsychology, Otto von Guericke Universitat, Magdeburg, Germany
    Psychiatry Res 108:101-10. 2001
  6. ncbi request reprint Oxazepam alters action monitoring
    S Johannes
    Department of Neurology, Medical School of Hannover, 30623 Hannover, Germany
    Psychopharmacology (Berl) 155:100-6. 2001
  7. ncbi request reprint Brain potentials index executive functions during random number generation
    Gregor Joppich
    Department of Neurology, Medizinische Hochschule Hannover, Hannover, Germany
    Neurosci Res 49:157-64. 2004
  8. ncbi request reprint Recognition memory for unfamiliar faces does not differ for adult normal and dyslexic readers: an event-related brain potential study
    Jascha Rüsseler
    Department of Neuropsychology, Otto von Guericke University, Magdeburg, Germany
    Clin Neurophysiol 114:1285-91. 2003
  9. ncbi request reprint Recognition memory for high- and low-frequency words in adult normal and dyslexic readers: an event-related brain potential study
    Jascha Rüsseler
    Department of Neuropsychology, Otto von Guericke University, Magdeburg, Germany
    J Clin Exp Neuropsychol 25:815-29. 2003
  10. ncbi request reprint Disturbed egocentric space representation in cervical dystonia
    Sandra V Muller
    Department of Neuropsychology, Otto von Guericke University Magdeburg, Germany
    Mov Disord 20:58-63. 2005

Detail Information

Publications13

  1. ncbi request reprint Altered inhibition of motor responses in Tourette Syndrome and Obsessive-Compulsive Disorder
    S Johannes
    Department of Neuropsychology, Otto von Guericke Universitat, Magdeburg, Germany
    Acta Neurol Scand 104:36-43. 2001
    ..We hypothesized that both patient groups would display altered frontal inhibitory activity...
  2. ncbi request reprint Electrophysiological measures and dual-task performance in Tourette syndrome indicate deficient divided attention mechanisms
    S Johannes
    Department of Neuropsychology, Otto von Guericke Universitat, Magdeburg, Germany
    Eur J Neurol 8:253-60. 2001
    ..The allocation of attentional resources to competing tasks however, is altered. We speculate that this may be related to deficient inhibitory functions...
  3. ncbi request reprint Tourette syndrome and obsessive-compulsive disorder: event-related brain potentials show similar mechanisms [correction of mechansims] of frontal inhibition but dissimilar target evaluation processes
    Sönke Johannes
    Department of Neuropsychology, Otto von Guericke Universitat, Magdeburg, Germany
    Behav Neurol 14:9-17. 2003
    ..We hypothesized that the processing of stimuli with interfering aspects would be altered in a similar way while attentional mechanisms could differ...
  4. ncbi request reprint Excessive action monitoring in Tourette syndrome
    Sönke Johannes
    Department of Neurology, Medical School of Hannover, Germany
    J Neurol 249:961-6. 2002
    ..A number of similarities to Obsessive-Compulsive Disorder are outlined and it is argued that the findings could be related to a hyperactive frontal-striatal-thalamic-frontal circuit...
  5. ncbi request reprint Discrepant target detection and action monitoring in obsessive-compulsive disorder
    S Johannes
    Department of Neuropsychology, Otto von Guericke Universitat, Magdeburg, Germany
    Psychiatry Res 108:101-10. 2001
    ..In addition the disorder must involve pathophysiological processes that are presumably related to other aspects of its complex and heterogeneous clinical hallmarks...
  6. ncbi request reprint Oxazepam alters action monitoring
    S Johannes
    Department of Neurology, Medical School of Hannover, 30623 Hannover, Germany
    Psychopharmacology (Berl) 155:100-6. 2001
    ..Oxazepam has been demonstrated to slow reaction times and increase the rate of omission errors in attentional experiments. This suggests that action monitoring might also be impaired...
  7. ncbi request reprint Brain potentials index executive functions during random number generation
    Gregor Joppich
    Department of Neurology, Medizinische Hochschule Hannover, Hannover, Germany
    Neurosci Res 49:157-64. 2004
    ..Source localization suggested a medial frontal source. This effect was tentatively interpreted as a reflection of the greater monitoring demands during random sequence generation...
  8. ncbi request reprint Recognition memory for unfamiliar faces does not differ for adult normal and dyslexic readers: an event-related brain potential study
    Jascha Rüsseler
    Department of Neuropsychology, Otto von Guericke University, Magdeburg, Germany
    Clin Neurophysiol 114:1285-91. 2003
    ..Differences in recognition memory for unfamiliar faces between adult developmental dyslexic (n=12) and normal readers (n=12) were studied by means of event-related brain potentials...
  9. ncbi request reprint Recognition memory for high- and low-frequency words in adult normal and dyslexic readers: an event-related brain potential study
    Jascha Rüsseler
    Department of Neuropsychology, Otto von Guericke University, Magdeburg, Germany
    J Clin Exp Neuropsychol 25:815-29. 2003
    ..This effect was larger for low-frequency words. In Phase 2, an old/new effect was obtained for normal readers only. These findings are discussed in relation to current concepts of dyslexia and of semantic processing...
  10. ncbi request reprint Disturbed egocentric space representation in cervical dystonia
    Sandra V Muller
    Department of Neuropsychology, Otto von Guericke University Magdeburg, Germany
    Mov Disord 20:58-63. 2005
    ..No effects were seen in body-independent visual spatial perception. Patients with CD are impaired in body-centered, egocentric spatial perception, but not in body-independent, allocentric spatial perception...
  11. ncbi request reprint Target evaluation processing and serum levels of nerve tissue protein S100B in patients with remitted major depression
    Detlef E Dietrich
    Department of Clinical Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
    Neurosci Lett 354:69-73. 2004
    ..These findings provide evidence of a correlation between S100B levels and attentional processes in patients with recurrent depression and further substantiate S100B's role as a marker in the course of affective disorders...
  12. ncbi request reprint Transcranial magnetic stimulation to the parietal lobes reduces detection of contralateral somatosensory stimuli
    Wido Nager
    Neurologische Klinik mit klinischer, Neurophysiologie Medizinische Hochschule Hannover, Hannover, Germany
    Acta Neurol Scand 109:146-50. 2004
    ..Transcranial magnetic stimulation (TMS) applied to the parietal cortex has been shown to induce changes in the perception of stimuli including tactile stimulation of the fingers contra- and ipsilateral to the stimulated hemisphere...
  13. ncbi request reprint Cognitive brain potentials to novel acoustic stimuli in adult dyslexic readers
    Jascha Rüsseler
    Department of Neuropsychology, Otto von Guericke University, Magdeburg, Germany
    Dyslexia 8:125-42. 2002
    ..Furthermore, we propose that dyslexics need to employ more cognitive resources to refocus on the task at hand (as indicated by the enlarged slow frontal negativity)...