Christoph S Herrmann

Summary

Affiliation: Otto-von-Guericke University
Country: Germany

Publications

  1. doi request reprint Early gamma-band responses reflect anticipatory top-down modulation in the auditory cortex
    Jeanette Schadow
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, Germany
    Neuroimage 47:651-8. 2009
  2. ncbi request reprint Human EEG very high frequency oscillations reflect the number of matches with a template in auditory short-term memory
    Daniel Lenz
    Otto von Guericke University Magdeburg, Department of Biological Psychology, PO Box 4120, 39016 Magdeburg, Germany
    Brain Res 1220:81-92. 2008
  3. pmc Time pressure modulates electrophysiological correlates of early visual processing
    Ingo Fründ
    Institute of Psychology, Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    PLoS ONE 3:e1675. 2008
  4. ncbi request reprint Stimulus intensity affects early sensory processing: visual contrast modulates evoked gamma-band activity in human EEG
    Jeanette Schadow
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, Germany
    Int J Psychophysiol 66:28-36. 2007
  5. ncbi request reprint Analysis of a choice-reaction task yields a new interpretation of Libet's experiments
    Christoph S Herrmann
    Otto von Guericke University, Department for Biological Psychology, Magdeburg, Germany
    Int J Psychophysiol 67:151-7. 2008
  6. ncbi request reprint Sound level dependence of auditory evoked potentials: simultaneous EEG recording and low-noise fMRI
    Stefanie Thaerig
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, P O Box 4120, 39016 Magdeburg, Germany
    Int J Psychophysiol 67:235-41. 2008
  7. pmc From perception to action: phase-locked gamma oscillations correlate with reaction times in a speeded response task
    Ingo Fründ
    Institute of Psychology, Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    BMC Neurosci 8:27. 2007
  8. doi request reprint Impairments of Gestalt perception in the intact hemifield of hemianopic patients are reflected in gamma-band EEG activity
    Jeanette Schadow
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, Germany
    Neuropsychologia 47:556-68. 2009
  9. ncbi request reprint Evoked gamma oscillations in human scalp EEG are test-retest reliable
    Ingo Fründ
    Institute of Psychology, Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    Clin Neurophysiol 118:221-7. 2007
  10. doi request reprint Electrophysiological correlates of semantic processing during encoding of neutral and emotional pictures in patients with ADHD
    Kerstin Krauel
    Department of Neurology and Center for Advanced Imaging, University of Magdeburg, Magdeburg, Germany
    Neuropsychologia 47:1873-82. 2009

Detail Information

Publications33

  1. doi request reprint Early gamma-band responses reflect anticipatory top-down modulation in the auditory cortex
    Jeanette Schadow
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, Germany
    Neuroimage 47:651-8. 2009
    ..Our results support the notion that gamma-band oscillations reflect perceptual grouping processes of concurrent sounds and anticipatory top-down modulation, which involves some of the first stages of auditory information processing...
  2. ncbi request reprint Human EEG very high frequency oscillations reflect the number of matches with a template in auditory short-term memory
    Daniel Lenz
    Otto von Guericke University Magdeburg, Department of Biological Psychology, PO Box 4120, 39016 Magdeburg, Germany
    Brain Res 1220:81-92. 2008
    ..The results support the conclusion that very high frequency oscillations (VHFOs) are markers of active stimulus discrimination in STM matching processes and are attributable to higher cognitive functions...
  3. pmc Time pressure modulates electrophysiological correlates of early visual processing
    Ingo Fründ
    Institute of Psychology, Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    PLoS ONE 3:e1675. 2008
    ..It is important to understand whether visual processing under different response speed requirements employs different neural mechanisms...
  4. ncbi request reprint Stimulus intensity affects early sensory processing: visual contrast modulates evoked gamma-band activity in human EEG
    Jeanette Schadow
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, Germany
    Int J Psychophysiol 66:28-36. 2007
    ..Thus, it appears meaningful to control the contrast of stimuli in experiments investigating the role of gamma activity in perception and information processing...
  5. ncbi request reprint Analysis of a choice-reaction task yields a new interpretation of Libet's experiments
    Christoph S Herrmann
    Otto von Guericke University, Department for Biological Psychology, Magdeburg, Germany
    Int J Psychophysiol 67:151-7. 2008
    ..Therefore, we argue that this activity does not specifically determine behaviour. Instead, it may reflect a general expectation. This interpretation would not interfere with the notion of free will...
  6. ncbi request reprint Sound level dependence of auditory evoked potentials: simultaneous EEG recording and low-noise fMRI
    Stefanie Thaerig
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, P O Box 4120, 39016 Magdeburg, Germany
    Int J Psychophysiol 67:235-41. 2008
    ..This effect was pronounced over the right hemisphere. Our results suggest that low-noise sequences might be advantageous for the examination of auditory processing in simultaneous EEG and fMRI recordings...
  7. pmc From perception to action: phase-locked gamma oscillations correlate with reaction times in a speeded response task
    Ingo Fründ
    Institute of Psychology, Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    BMC Neurosci 8:27. 2007
    ..Due to its very short latency ( approximately 90 ms) such oscillations are a plausible candidate for very rapid integration of sensory and motor processes...
  8. doi request reprint Impairments of Gestalt perception in the intact hemifield of hemianopic patients are reflected in gamma-band EEG activity
    Jeanette Schadow
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, Germany
    Neuropsychologia 47:556-68. 2009
    ..This effect was not manifested in patients. The present findings indicate deficits in the early and late visual processing of Gestalt patterns even in the intact hemifield of hemianopic patients compared to healthy participants...
  9. ncbi request reprint Evoked gamma oscillations in human scalp EEG are test-retest reliable
    Ingo Fründ
    Institute of Psychology, Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    Clin Neurophysiol 118:221-7. 2007
    ..However, to date the test-retest reliability of these oscillations has not been studied systematically...
  10. doi request reprint Electrophysiological correlates of semantic processing during encoding of neutral and emotional pictures in patients with ADHD
    Kerstin Krauel
    Department of Neurology and Center for Advanced Imaging, University of Magdeburg, Magdeburg, Germany
    Neuropsychologia 47:1873-82. 2009
    ..These findings provide evidence that ADHD patients show deficits in translating pre-stimulus mobilization of neural resources to successful memory formation in the absence of salient stimulus material...
  11. ncbi request reprint Stimulus intensity affects early sensory processing: sound intensity modulates auditory evoked gamma-band activity in human EEG
    Jeanette Schadow
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, P O Box 4120, 39016 Magdeburg, Germany
    Int J Psychophysiol 65:152-61. 2007
    ..In addition, it seems that gamma-band activity is more sensitive to exogenous stimulus parameters than evoked potentials...
  12. ncbi request reprint EEG oscillations in the gamma and alpha range respond differently to spatial frequency
    Ingo Fründ
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, P O Box 4120, 39016 Magdeburg, Germany
    Vision Res 47:2086-98. 2007
    ..The results link evoked and induced alpha and evoked gamma responses in human EEG to different modes of stimulus processing...
  13. doi request reprint Enhanced gamma-band activity in ADHD patients lacks correlation with memory performance found in healthy children
    Daniel Lenz
    Otto von Guericke University Magdeburg, Department of Biological Psychology, P O Box 4120, 39016 Magdeburg, Germany
    Brain Res 1235:117-32. 2008
    ..The involved genetic polymorphisms have been shown to modulate evoked GBRs, which therefore could be a possible marker of impaired neurotransmission in ADHD...
  14. doi request reprint Spike-timing-dependent plasticity leads to gamma band responses in a neural network
    Ingo Fründ
    Bernstein Group for Computational Neuroscience, Magdeburg, Germany
    Biol Cybern 101:227-40. 2009
    ..We demonstrated that within one neural architecture early gamma band responses can be modulated both by bottom-up factors and by basal learning mechanisms mediated via spike-timing-dependent plasticity...
  15. ncbi request reprint Prestimulus EEG alpha activity reflects prestimulus top-down processing
    Byoung Kyong Min
    Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    Neurosci Lett 422:131-5. 2007
    ..Consequently, prestimulus ongoing alpha activity probably reflects top-down information and modulates subsequent poststimulus responses...
  16. doi request reprint Pre-attentive spectro-temporal feature processing in the human auditory system
    Tino Zaehle
    Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    Brain Topogr 22:97-108. 2009
    ..Our data indicate that the pre-attentive feature-specific deviant processing is mediated by partly distinct neural subsystems for temporal and spectral information...
  17. doi request reprint Electrophysiological evidence for different types of change detection and change blindness
    Niko A Busch
    Otto von Guericke University, Magdeburg, Germany
    J Cogn Neurosci 22:1852-69. 2010
    ..These findings bear implications for how different categories of visual awareness are related to different stages in visual processing...
  18. pmc Transcranial alternating current stimulation enhances individual alpha activity in human EEG
    Tino Zaehle
    Department of Neurology, Otto von Guericke University, Magdeburg, Germany
    PLoS ONE 5:e13766. 2010
    ..The data demonstrate the ability of tACS to specifically modulate oscillatory brain activity and show its potential both at fostering knowledge on the functional significance of brain oscillations and for therapeutic application...
  19. doi request reprint Excitability changes induced in the human auditory cortex by transcranial direct current stimulation: direct electrophysiological evidence
    Tino Zaehle
    Department of Neurology, Otto v Guericke University, Magdeburg, Germany
    Exp Brain Res 215:135-40. 2011
    ....
  20. ncbi request reprint Modes of memory: early electrophysiological markers of repetition suppression and recognition enhancement predict behavioral performance
    Niko A Busch
    Institute of Psychology, Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    Psychophysiology 45:25-35. 2008
    ..The results demonstrate a modulation of earliest stages of visual information processing by different memory systems, which is dependent on retrieval intention and predicts individual behavioral performance...
  21. ncbi request reprint What's that sound? Matches with auditory long-term memory induce gamma activity in human EEG
    Daniel Lenz
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, P O Box 4120, 39016 Magdeburg, Germany
    Int J Psychophysiol 64:31-8. 2007
    ..The results suggest that induced gamma-band activity reflects the matches between sounds and their representations in auditory LTM...
  22. pmc Memory-matches evoke human gamma-responses
    Christoph S Herrmann
    Otto von Guericke University, Dept of Biological Psychology, PO Box 4120, 39016 Magdeburg, Germany
    BMC Neurosci 5:13. 2004
    ..EEG was recorded from 13 subjects performing a choice reaction task. Visual stimuli were either known real-world objects with a memory representation or novel configurations never seen before...
  23. doi request reprint Neural synchrony and white matter variations in the human brain--relation between evoked γ frequency and corpus callosum morphology
    Tino Zaehle
    Department of Neurology, Otto von Guericke University, Magdeburg, Germany German Centre for Neurodegenerative Diseases DZNE Magdeburg, Germany
    Int J Psychophysiol 79:49-54. 2011
    ....
  24. ncbi request reprint Size matters: effects of stimulus size, duration and eccentricity on the visual gamma-band response
    Niko A Busch
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, P O Box 4120, 39016 Magdeburg, Germany
    Clin Neurophysiol 115:1810-20. 2004
    ....
  25. ncbi request reprint A cross-laboratory study of event-related gamma activity in a standard object recognition paradigm
    Niko A Busch
    Institute of Psychology, Department of Biological Psychology, Otto von Guericke University of Magdeburg, PO Box 4120, 39108 Magdeburg, Germany
    Neuroimage 33:1169-77. 2006
    ..Induced gamma band activity was stronger for familiar than for unfamiliar objects, supporting the notion of gamma activity as a signature of cortical networks underlying object representations...
  26. pmc Anticipation of natural stimuli modulates EEG dynamics: physiology and simulation
    Ingo Fründ
    Department of Biological Psychology, Institute of Psychology at the Otto von Guericke University, Magdeburg, Germany
    Cogn Neurodyn 2:89-100. 2008
    ..Thus, it seems plausible, that stimulus anticipation results in a pretuning of local neural populations...
  27. ncbi request reprint Simultaneous recording of EEG and BOLD responses: a historical perspective
    Christoph S Herrmann
    Department of Biological Psychology, Otto von Guericke University of Magdeburg, P O Box 4120, 39016 Magdeburg, Germany
    Int J Psychophysiol 67:161-8. 2008
    ..We summarize the main data integration approaches developed to achieve such a combination, discuss the current state-of-the-art in this field and outline challenges for the future success of this promising approach...
  28. ncbi request reprint The best of both worlds: phase-reset of human EEG alpha activity and additive power contribute to ERP generation
    Byoung Kyong Min
    Department of Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    Int J Psychophysiol 65:58-68. 2007
    ..We conclude that both partial phase-resetting and partial additive power contribute dynamically to the generation of ERPs. The prestimulus brain state exerts a prominent influence on event-related brain responses...
  29. ncbi request reprint Time-frequency analysis of target detection reveals an early interface between bottom-up and top-down processes in the gamma-band
    Niko A Busch
    Otto von Guericke University of Magdeburg, Institute of Psychology, Department of Biological Psychology, PO Box 4120, 39016 Magdeburg, Germany
    Neuroimage 29:1106-16. 2006
    ..This interaction, however, may be only detectable in scalp-recorded EEG if it affects a sufficient number of neural assemblies...
  30. ncbi request reprint Object-load and feature-load modulate EEG in a short-term memory task
    Niko A Busch
    Department of Biological Psychology, University of Magdeburg, Postfach 4120, 39016 Magdeburg, Germany
    Neuroreport 14:1721-4. 2003
    ..Thus, only object-load seemed to influence encoding and retention while feature-load played a crucial role during retrieval. Our results demonstrate that object-load and feature-load influence short-term memory at different stages...
  31. ncbi request reprint Phase-locking and amplitude modulations of EEG alpha: Two measures reflect different cognitive processes in a working memory task
    Christoph S Herrmann
    Institute for Biological Psychology, Otto von Guericke University, Magdeburg, Germany
    Exp Psychol 51:311-8. 2004
    ..While alpha phase locking seemed to be influenced mainly by task complexity, alpha amplitude clearly reflected memory demands in our paradigm...
  32. doi request reprint Neurofeedback training of the upper alpha frequency band in EEG improves cognitive performance
    Benedikt Zoefel
    Otto von Guericke University, Institute for Biology, Madeburg, Germany
    Neuroimage 54:1427-31. 2011
    ..Thus, enhanced cognitive control went along with an increased upper alpha amplitude that was found in the neurofeedback group only...
  33. pmc Inter- and intra-individual covariations of hemodynamic and oscillatory gamma responses in the human cortex
    Tino Zaehle
    Department of Biological Psychology, Otto von Guericke University Magdeburg Magdeburg, Germany
    Front Hum Neurosci 3:8. 2009
    ..The present study further supports the notion that neural oscillations in the gamma frequency range are involved in the cascade of neural processes that underlie the hemodynamic responses measured with fMRI...