Affiliation: Max Planck Institute for Biological Cybernetics
- Impact of the gyral geometry on the electric field induced by transcranial magnetic stimulationAxel Thielscher
High Field Magnetic Resonance Center, MPI for Biological Cybernetics, Tubingen, Germany
Neuroimage 54:234-43. 2011..In contrast to the clear-cut effects of the gyrification pattern on the induced field strength, current directions were predominantly influenced by the CSF-skull boundary...
- The cortical site of visual suppression by transcranial magnetic stimulationA Thielscher
High Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, 72076 Tubingen, Germany
Cereb Cortex 20:328-38. 2010..These findings support the view that intact activity patterns in several early visual areas (rather than merely in V1) are likewise important for the perception of the stimulus...
- Determining the cortical target of transcranial magnetic stimulationA Thielscher
High Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, Tubingen, Germany
Neuroimage 47:1319-30. 2009..The estimates for the field strength necessary to achieve 50% of the maximal suppression effect vary noticeably across subjects (mean+/-SD: 139+/-24 V/m), indicating inter-individual differences in the susceptibility to TMS...
- Globally consistent depth sorting of overlapping 2D surfaces in a model using local recurrent interactionsAxel Thielscher
High Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, Spemannstrasse 38, Tubingen, Germany
Biol Cybern 98:305-37. 2008..Within this framework, the induction of illusory contours by the model of recurrent V1-V2 interaction gives rise to the figure-ground segmentation of illusory figures such as a Kanizsa square...
- A computational model to link psychophysics and cortical cell activation patterns in human texture processingA Thielscher
Department of Psychiatry, University of Ulm, Ulm, Germany
J Comput Neurosci 22:255-82. 2007..In particular, feedback interaction is crucial to raise the model performance to the level of human observers...
- The navigation of transcranial magnetic stimulationU Herwig
Department of Psychiatry, University of Ulm, Leimgrubenweg 12, D 89070 Ulm, Germany
Psychiatry Res 108:123-31. 2001..Future applications of TMS should take individual anatomy into account, and neuronavigation provides the means to do so...
- Texture segmentation in human perception: a combined modeling and fMRI studyA Thielscher
Max Planck Institute for Biological Cybernetics, Tuebingen, Germany
Neuroscience 151:730-6. 2008..Our modeling and imaging results indicate that mid-level visual areas form a key stage in figure-ground segregation by gradually signaling the salience of region boundaries defined by orientation contrast...
- Effects of transcranial magnetic stimulation on visual evoked potentials in a visual suppression taskA Reichenbach
Magnetic Resonance Center, MPI for Biological Cybernetics, Tubingen, Germany
Neuroimage 54:1375-84. 2011..Importantly, however, this effect is uncorrelated with the strength of behavioral impairment...
- Motor thresholds in humans: a transcranial magnetic stimulation study comparing different pulse waveforms, current directions and stimulator typesT Kammer
Department of Neurobiology, Max Planck Institut for Biological Cybernetics, Spemannstrasse 38, D 72076, Tubingen, Germany
Clin Neurophysiol 112:250-8. 2001..To evaluate the stimulation effectiveness of different magnetic stimulator devices with respect to pulse waveform and current direction in the motor cortex...
- Neural mechanisms of cortico-cortical interaction in texture boundary detection: a modeling approachA Thielscher
Department of Psychiatry, University of Ulm, Leimgrubenweg 12 14, 89075 Ulm, Germany
Neuroscience 122:921-39. 2003..One of the likely neural origins of modulatory effects on V1 cell activation levels, as observed in electrophysiological studies using single- and multi-unit recordings, can be resolved...
- Cholinergic enhancement of episodic memory in healthy young adultsGeorg Gron
Department of Psychiatry, University of Ulm, Leimgrubenweg 12, 89075 Ulm, Germany
Psychopharmacology (Berl) 182:170-9. 2005..Acetylcholine esterase (AchE) inhibitors are known to remediate symptoms of Alzheimer's disease. However, only few systematic data exist on the effects of cholinergic treatment on cognitive functions in normal subjects...
- Neural mechanisms of human texture processing: texture boundary detection and visual searchAxel Thielscher
Department of Psychiatry, University of Ulm, Germany
Spat Vis 18:227-57. 2005..It furthermore explains why pre-attentive processing in visual search tasks can be directly linked to texture boundary processing as revealed by recent EEG studies on visual search...
- Neural correlates of perceptual choice and decision making during fear-disgust discriminationAxel Thielscher
High Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, 38, D 72076 Tubingen, Germany
J Neurosci 27:2908-17. 2007....
- Motor and phosphene thresholds: consequences of cortical anisotropyThomas Kammer
Department of Neurobiology, Max Planck Institute for Biological Cybernetics, Department of Neurology, , , Germany
Suppl Clin Neurophysiol 56:198-203. 2003