F Rattay

Summary

Affiliation: Vienna University of Technology
Country: Austria

Publications

  1. ncbi request reprint A novel approach to simulate Hodgkin-Huxley-like excitation with COMSOL Multiphysics
    Johannes Martinek
    Institute for Analysis and Scientific Computing, Vienna University of Technology, Vienna, Austria
    Artif Organs 32:614-9. 2008
  2. ncbi request reprint Dipole distance for minimum threshold current to stimulate unmyelinated axons with microelectrodes
    Frank Rattay
    Institute for Analysis and Scientific Computing at the Vienna University of Technology, Wiedner Hauptstr 8 10 101, A 1040 Vienna, Austria
    IEEE Trans Biomed Eng 54:158-62. 2007
  3. ncbi request reprint A model of the electrically excited human cochlear neuron. I. Contribution of neural substructures to the generation and propagation of spikes
    F Rattay
    TU BioMed, Vienna University of Technology, Austria
    Hear Res 153:43-63. 2001
  4. ncbi request reprint A model of the electrically excited human cochlear neuron. II. Influence of the three-dimensional cochlear structure on neural excitability
    F Rattay
    TU BioMed, Vienna University of Technology, Austria
    Hear Res 153:64-79. 2001
  5. pmc Which elements of the mammalian central nervous system are excited by low current stimulation with microelectrodes?
    F Rattay
    Institute for Analysis and Scientific Computing, Vienna University of Technology, Wiedner Hauptstrasse 8 10, A 1040 Vienna, Austria
    Neuroscience 170:399-407. 2010
  6. doi request reprint Current distance relations for fiber stimulation with pointsources
    Frank Rattay
    Institute for Analysis and Scientific Computing at the Vienna University of Technology, TU BioMed, Wiedner Hauptstr 8 10 101, Vienna A 1040, Austria
    IEEE Trans Biomed Eng 55:1122-7. 2008
  7. ncbi request reprint Effective electrode configuration for selective stimulation with inner eye prostheses
    Frank Rattay
    Institute of Analysis and Scientific Computing, Vienna University of Technology, A 1040 Vienna, Austria
    IEEE Trans Biomed Eng 51:1659-64. 2004
  8. ncbi request reprint Stepping-like movements in humans with complete spinal cord injury induced by epidural stimulation of the lumbar cord: electromyographic study of compound muscle action potentials
    K Minassian
    TU BioMed Association for Biomedical Engineering, Vienna University of Technology, Vienna, Austria
    Spinal Cord 42:401-16. 2004
  9. ncbi request reprint Human lumbar cord circuitries can be activated by extrinsic tonic input to generate locomotor-like activity
    K Minassian
    Ludwig Boltzmann Institute for Electrical Stimulation and Physical Rehabilitation, Vienna, Austria
    Hum Mov Sci 26:275-95. 2007
  10. pmc Strength-duration relationship for intra- versus extracellular stimulation with microelectrodes
    F Rattay
    Institute for Analysis and Scientific Computing, Vienna University of Technology, Vienna, Austria frank ac at
    Neuroscience 214:1-13. 2012

Collaborators

Detail Information

Publications21

  1. ncbi request reprint A novel approach to simulate Hodgkin-Huxley-like excitation with COMSOL Multiphysics
    Johannes Martinek
    Institute for Analysis and Scientific Computing, Vienna University of Technology, Vienna, Austria
    Artif Organs 32:614-9. 2008
    ..The method has many applications, for example, the relation between stimulus parameters and fiber recruitment can be analyzed...
  2. ncbi request reprint Dipole distance for minimum threshold current to stimulate unmyelinated axons with microelectrodes
    Frank Rattay
    Institute for Analysis and Scientific Computing at the Vienna University of Technology, Wiedner Hauptstr 8 10 101, A 1040 Vienna, Austria
    IEEE Trans Biomed Eng 54:158-62. 2007
    ..Spike initiations in straight fibers and retinal ganglion cell axons are investigated...
  3. ncbi request reprint A model of the electrically excited human cochlear neuron. I. Contribution of neural substructures to the generation and propagation of spikes
    F Rattay
    TU BioMed, Vienna University of Technology, Austria
    Hear Res 153:43-63. 2001
    ..Comparing the reactions of a human and cat cochlear neuron, we find differences in spiking behavior, e.g. peripherally and centrally evoked spikes arrive with a time difference of about 400 mus in man and 200 mus in cat...
  4. ncbi request reprint A model of the electrically excited human cochlear neuron. II. Influence of the three-dimensional cochlear structure on neural excitability
    F Rattay
    TU BioMed, Vienna University of Technology, Austria
    Hear Res 153:64-79. 2001
    ..In contrast to single fiber experiments with cats, the long peripheral processes in human cochlear neurons cause first excitation in the periphery and, consequently, neurons with lost dendrite need higher stimuli...
  5. pmc Which elements of the mammalian central nervous system are excited by low current stimulation with microelectrodes?
    F Rattay
    Institute for Analysis and Scientific Computing, Vienna University of Technology, Wiedner Hauptstrasse 8 10, A 1040 Vienna, Austria
    Neuroscience 170:399-407. 2010
    ..Beside these exceptions, spike initiation site for cathodic low current stimulation appears rather close to the electrode...
  6. doi request reprint Current distance relations for fiber stimulation with pointsources
    Frank Rattay
    Institute for Analysis and Scientific Computing at the Vienna University of Technology, TU BioMed, Wiedner Hauptstr 8 10 101, Vienna A 1040, Austria
    IEEE Trans Biomed Eng 55:1122-7. 2008
    ....
  7. ncbi request reprint Effective electrode configuration for selective stimulation with inner eye prostheses
    Frank Rattay
    Institute of Analysis and Scientific Computing, Vienna University of Technology, A 1040 Vienna, Austria
    IEEE Trans Biomed Eng 51:1659-64. 2004
    ..Long electrodes parallel to these axons are shown to be good candidates for avoiding the co-stimulation phenomenon. Efficiency of focal excitation depends on the length and resistance of the electrodes...
  8. ncbi request reprint Stepping-like movements in humans with complete spinal cord injury induced by epidural stimulation of the lumbar cord: electromyographic study of compound muscle action potentials
    K Minassian
    TU BioMed Association for Biomedical Engineering, Vienna University of Technology, Vienna, Austria
    Spinal Cord 42:401-16. 2004
    ..In the present paper, we explore physiologically related components of electromyographic (EMG) recordings during the induced stepping-like activity...
  9. ncbi request reprint Human lumbar cord circuitries can be activated by extrinsic tonic input to generate locomotor-like activity
    K Minassian
    Ludwig Boltzmann Institute for Electrical Stimulation and Physical Rehabilitation, Vienna, Austria
    Hum Mov Sci 26:275-95. 2007
    ..Pattern generating configurations of these multifunctional circuitries can be set-up depending on the stimulation parameters and particularly on the input frequency...
  10. pmc Strength-duration relationship for intra- versus extracellular stimulation with microelectrodes
    F Rattay
    Institute for Analysis and Scientific Computing, Vienna University of Technology, Vienna, Austria frank ac at
    Neuroscience 214:1-13. 2012
    ..As spike initiation site can change for short and long pulses, in some cases strength-duration curves have a bimodal shape, and thus, they deviate from a classical monotonic curve as described by the formulas of Lapicque or Weiss...
  11. ncbi request reprint Analysis of the electrical excitation of CNS neurons
    F Rattay
    Technical University Vienna, Austria
    IEEE Trans Biomed Eng 45:766-72. 1998
    ..An example demonstrates that for a target neuron the quotient (anodic threshold current)/(cathodic threshold current) essentially depends on the position and orientation of the neuron relative to the electrode...
  12. doi request reprint Modeling needle stimulation of denervated muscle fibers: voltage-distance relations and fiber polarization effects
    Yvonne Stickler
    Institute for Analysis and Scientific Computing, Vienna University of Technology, A 1040 Vienna, Austria
    IEEE Trans Biomed Eng 56:2396-403. 2009
    ..Qualitative results of the 1-D model like voltage-distance relations and predictions of spike initiation sites were correct...
  13. ncbi request reprint A finite element model of the electrically stimulated human thigh: changes due to denervation and training
    Yvonne Stickler
    Institute for Analysis and Scientific Computing, Vienna University of Technology, Vienna, Austria
    Artif Organs 32:620-4. 2008
    ..Furthermore the method gives an insight into the relations between potential distribution, electrode position, geometric effects, and muscle fiber activation that cannot be obtained by measurements...
  14. ncbi request reprint Modification of reflex responses to lumbar posterior root stimulation by motor tasks in healthy subjects
    Ursula S Hofstoetter
    Institute for Analysis and Scientific Computing, Vienna University of Technology, Vienna, Austria
    Artif Organs 32:644-8. 2008
    ..The significance is that transcutaneous posterior root stimulation allows extending H-reflex studies of a single muscle to the assessment of synaptic transmission of two-neuron reflex arcs at multiple segmental levels simultaneously...
  15. doi request reprint Assessment criteria for evaluating the stability and position of the centre of gravity on a balance training platform: a simulation with MatlabĀ®
    C Ambrozy
    Medical University Vienna, Department of Physical Medicine a Rehabilitation, Waehringer Gurtel 18 20, 1090, Vienna, Vienna 1090, Austria
    J Med Eng Technol 35:239-45. 2011
    ..The Active Balance Index (ABI) in combination with the ABR seems to be an adequate parameter for the evaluation of COG stability on a training platform...
  16. ncbi request reprint Initiating extension of the lower limbs in subjects with complete spinal cord injury by epidural lumbar cord stimulation
    B Jilge
    TU BioMed Association for Biomedical Engineering, Vienna University of Technology, Wiedner Hauptstrasse 8 10 114, 1040 Vienna, Austria
    Exp Brain Res 154:308-26. 2004
    ..In the electromyograms of the lower-limb muscle groups, such activity is reflected as a characteristic spatiotemporal pattern of compound motor-unit potentials...
  17. ncbi request reprint Frequency-dependent selection of alternative spinal pathways with common periodic sensory input
    Bernhard Jilge
    TU BioMed Association for Biomedical Engineering, Vienna University of Technology, Wiedner Hauptstrasse 8 10, 1040 Vienna, Austria
    Biol Cybern 91:359-76. 2004
    ..The results confirm frequency-dependent spinal pathway selection as a simple mechanism which enables the cord to respond to distinct neuronal codes with different motor behaviours and to control the actual performance of the latter...
  18. ncbi request reprint Discrete beta dose kernel matrices for nuclides applied in targeted radionuclide therapy (TRT) calculated with MCNP5
    Dora Reiner
    Institute of Analysis and Scientific Computing, Vienna University of Technology, Karlsplatz 13, 1040 Vienna, Austria
    Med Phys 36:4890-6. 2009
    ..This study aims to report on three-dimensional kernel matrices for various nuclides used in TRT...
  19. ncbi request reprint Analysis of calculated electrical activation of denervated muscle fibers in the human thigh
    Johannes Martinek
    Department of Biomedical Engineering and Physics, Medical University of Vienna, Vienna, Austria
    Artif Organs 29:444-7. 2005
    ..To obtain activation at the central part of the muscle fiber, higher amplitudes and longer pulse durations are needed...
  20. ncbi request reprint Simulation of the three-dimensional electrical field in the course of functional electrical stimulation
    Martin Reichel
    Department of Biomedical Engineering and Physics, University of Vienna, Austria
    Artif Organs 26:252-5. 2002
    ....
  21. ncbi request reprint Posterior root-muscle reflexes elicited by transcutaneous stimulation of the human lumbosacral cord
    Karen Minassian
    Ludwig Boltzmann Institute of Electrical Stimulation and Physical Rehabilitation, Department of Physical Medicine and Rehabilitation, Wilhelminenspital Wien, Montleartstrasse 37, 1171 Vienna, Austria
    Muscle Nerve 35:327-36. 2007
    ..Continuous transcutaneous posterior root stimulation represents a novel, non-invasive, neuromodulative approach for individuals with different neurological disorders...