Theodor Landis

Summary

Affiliation: University Hospital
Country: Switzerland

Publications

  1. ncbi Emotional words: what's so different from just words?
    Theodor Landis
    Department of Neurology, Medical School and University Hospital Geneva, Geneva, Switzerland
    Cortex 42:823-30. 2006
  2. ncbi Linking out-of-body experience and self processing to mental own-body imagery at the temporoparietal junction
    Olaf Blanke
    Functional Brain Mapping Laboratory, Department of Neurology, University Hospital, 1211 Geneva, Switzerland
    J Neurosci 25:550-7. 2005
  3. ncbi Brain damage and addictive behavior: a neuropsychological and electroencephalogram investigation with pathologic gamblers
    Marianne Regard
    Department of Neurology, University Hospital, Zurich, Switzerland
    Cogn Behav Neurol 16:47-53. 2003
  4. ncbi Visual recognition of faces, objects, and words using degraded stimuli: where and when it occurs
    Alan J Pegna
    Neuropsychology Unit, Neurology Clinic, University Hospitals, Geneva, Switzerland
    Hum Brain Mapp 22:300-11. 2004
  5. ncbi Levodopa reverses gait asymmetries related to anhedonia and magical ideation
    Christine Mohr
    Functional Brain Mapping Laboratory, Dept of Neurology, University Hospital Geneva, Rue Micheli du Crest 24, 1211 Geneva 14, Switzerland
    Eur Arch Psychiatry Clin Neurosci 255:33-9. 2005
  6. ncbi Prediction of response speed by anticipatory high-frequency (gamma band) oscillations in the human brain
    Sara L Gonzalez Andino
    Functional Brain Mapping Laboratory, Geneva University Hospital, Geneva, Switzerland
    Hum Brain Mapp 24:50-8. 2005
  7. ncbi Letters lost in space: hemispace dependent handwriting errors
    Stephanie Ortigue
    Functional Brain Mapping Laboratory, University Hospital of Geneva, 24 Rue Micheli du Crest, CH 1211 Geneva 14, Switzerland
    Neuroreport 15:2545-8. 2004
  8. doi Electrophysiological correlates of affective blindsight
    Sara L Gonzalez Andino
    Electrical Neuroimaging Group, Geneva University Hospitals, Geneva, Switzerland
    Neuroimage 44:581-9. 2009
  9. ncbi Preattentive interference between touch and audition: a case study on multisensory alloesthesia
    Stephanie Ortigue
    Functional Brain Mapping Laboratory, Department of Neurology, University Hospital of Geneva, Geneva, Switzerland
    Neuroreport 16:865-8. 2005
  10. ncbi Very high frequency oscillations (VHFO) as a predictor of movement intentions
    Sara L Gonzalez
    Electrical Neuroimaging Group, Neurology Department, Geneva University Hospital, 24 Rue Micheli du Crest, 1211 Geneva 14, Switzerland
    Neuroimage 32:170-9. 2006

Detail Information

Publications54

  1. ncbi Emotional words: what's so different from just words?
    Theodor Landis
    Department of Neurology, Medical School and University Hospital Geneva, Geneva, Switzerland
    Cortex 42:823-30. 2006
    ....
  2. ncbi Linking out-of-body experience and self processing to mental own-body imagery at the temporoparietal junction
    Olaf Blanke
    Functional Brain Mapping Laboratory, Department of Neurology, University Hospital, 1211 Geneva, Switzerland
    J Neurosci 25:550-7. 2005
    ....
  3. ncbi Brain damage and addictive behavior: a neuropsychological and electroencephalogram investigation with pathologic gamblers
    Marianne Regard
    Department of Neurology, University Hospital, Zurich, Switzerland
    Cogn Behav Neurol 16:47-53. 2003
    ..Because gamblers are not regarded as "brain-lesioned" and gambling is nontoxic, gambling is a model to test whether addicted "healthy" people are relatively impaired in frontolimbic neuropsychological functions...
  4. ncbi Visual recognition of faces, objects, and words using degraded stimuli: where and when it occurs
    Alan J Pegna
    Neuropsychology Unit, Neurology Clinic, University Hospitals, Geneva, Switzerland
    Hum Brain Mapp 22:300-11. 2004
    ....
  5. ncbi Levodopa reverses gait asymmetries related to anhedonia and magical ideation
    Christine Mohr
    Functional Brain Mapping Laboratory, Dept of Neurology, University Hospital Geneva, Rue Micheli du Crest 24, 1211 Geneva 14, Switzerland
    Eur Arch Psychiatry Clin Neurosci 255:33-9. 2005
    ..Also unexpectedly, levodopa made "anhedonics" veer like "magics" after placebo, suggesting that DA agonists suppress negative schizotypal symptoms...
  6. ncbi Prediction of response speed by anticipatory high-frequency (gamma band) oscillations in the human brain
    Sara L Gonzalez Andino
    Functional Brain Mapping Laboratory, Geneva University Hospital, Geneva, Switzerland
    Hum Brain Mapp 24:50-8. 2005
    ..These results provide direct evidence for the role of neural oscillations as a top-down attentional control mechanism that mediates the speed of motor actions...
  7. ncbi Letters lost in space: hemispace dependent handwriting errors
    Stephanie Ortigue
    Functional Brain Mapping Laboratory, University Hospital of Geneva, 24 Rue Micheli du Crest, CH 1211 Geneva 14, Switzerland
    Neuroreport 15:2545-8. 2004
    ..This suggests that the right hemisphere's role in handwriting may surpass its generally assumed purely spatial contribution. We discuss our results in term of co-registration between both cerebral hemispheres in language processing...
  8. doi Electrophysiological correlates of affective blindsight
    Sara L Gonzalez Andino
    Electrical Neuroimaging Group, Geneva University Hospitals, Geneva, Switzerland
    Neuroimage 44:581-9. 2009
    ....
  9. ncbi Preattentive interference between touch and audition: a case study on multisensory alloesthesia
    Stephanie Ortigue
    Functional Brain Mapping Laboratory, Department of Neurology, University Hospital of Geneva, Geneva, Switzerland
    Neuroreport 16:865-8. 2005
    ..Our data suggest that auditory-tactile integration and multisensory alloesthesia not only depend on attentional mechanisms, but also on somatotopic preattentive mechanisms...
  10. ncbi Very high frequency oscillations (VHFO) as a predictor of movement intentions
    Sara L Gonzalez
    Electrical Neuroimaging Group, Neurology Department, Geneva University Hospital, 24 Rue Micheli du Crest, 1211 Geneva 14, Switzerland
    Neuroimage 32:170-9. 2006
    ..This study has therefore important implications for the recording and analysis of electrophysiological data in normal subjects and patients...
  11. doi Seeing the phantom: a functional magnetic resonance imaging study of a supernumerary phantom limb
    Asaid Khateb
    Laboratory of Experimental Neuropsychology, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
    Ann Neurol 65:698-705. 2009
    ..Here, we report the case of a left visual, tactile, and intentional SPL caused by right subcortical damage in a nondeluded woman...
  12. ncbi A glimpse into your vision
    Sara L Gonzalez Andino
    Electrical Neuroimaging Group, Neurology Department, Geneva University Hospitals, Geneva, Switzerland
    Hum Brain Mapp 28:614-24. 2007
    ..Electrical neuroimaging therefore appears to have the potential to establish what the brain is processing while the stimuli are being seen or categorized, i.e., concurrently with sensory-perceptual processes...
  13. doi Peripheral autoimmune neuropathy assessed using corneal in vivo confocal microscopy
    Patrice H Lalive
    Department of Clinical Neurosciences, Geneva University Hospital, Geneva, Switzerland
    Arch Neurol 66:403-5. 2009
    ..Corneal nerves can be examined using in vivo confocal microscopy (IVCM). This new technique permits sequential observation of the corneal subbasal nerve plexus and detects early signs of diabetic peripheral neuropathy...
  14. doi Levetiracetam accumulation in renal failure causing myoclonic encephalopathy with triphasic waves
    Serge Vulliemoz
    EEG and Epilepsy Unit, University Hospital and Faculty of Medicine of Geneva, 24 Rue Micheli du Crest, 1211 Geneva 14, Switzerland
    Seizure 18:376-8. 2009
    ..In cases of metabolic encephalopathy with triphasic waves in a patient with renal failure taking levetiracetam, it is important to exclude toxic accumulation of levetiracetam among other causes...
  15. doi Electrophysiological evidence for early non-conscious processing of fearful facial expressions
    Alan J Pegna
    Laboratory of Experimental Neuropsychology, Neuropsychology Unit, University of Geneva, Geneva, Switzerland
    Int J Psychophysiol 70:127-36. 2008
    ....
  16. doi Transforaminal Doppler: an alternative to transtemporal approach for right-to-left cardiac shunt assessment
    Fabienne Perren
    HUG University Hospital and Medical Faculty, University of Geneva, Department of Neurology, 1211 Geneva, Switzerland
    J Neurol Sci 273:49-50. 2008
    ....
  17. doi Restless arms
    Judit Horvath
    Department of Neurology, University Hospital of Geneva, Geneva, Switzerland
    Lancet 371:530. 2008
  18. doi Electrical neuroimaging of single trials to identify laterality and brain regions involved in finger movements
    Rolando Grave de Peralta
    Electrical Neuroimaging Group, Geneva, Switzerland Geneva University Hospital and Geneva University, Geneva, Switzerland
    J Physiol Paris 103:324-32. 2009
    ..Consequently, our results indicate that both research lines, i.e., neuroprosthetics and electrical neuroimaging, might effectively benefit from their mutual interaction...
  19. ncbi Rhyme processing in the brain: an ERP mapping study
    Asaid Khateb
    Laboratory of Experimental Neuropsychology, Department of Neurology, University Hospital, Geneva, Switzerland
    Int J Psychophysiol 63:240-50. 2007
    ..Our results suggest that, similar to the N400 component that is also induced by mismatch contexts, the N450 might rely on temporal generators...
  20. ncbi Vertebral artery hypoplasia: a predisposing factor for posterior circulation stroke?
    Fabienne Perren
    Department of Neurology, HUG, University Hospital and Medical School of Geneva, Micheli du Crest 24, CH 1211 Geneva 14, Switzerland
    Neurology 68:65-7. 2007
    ..001), whereas all other risk factors (hypertension, hyperlipidemia, diabetes, smoking) were equally (p > 0.05) distributed. Patients with VAH may be predisposed to stroke in the posterior circulation...
  21. ncbi Cortical motion deafness
    Christine Y Ducommun
    Functional Brain Mapping Laboratory, University Hospital, 1211 Geneva, Switzerland
    Neuron 43:765-77. 2004
    ..Collectively, these data present a patient with cortical motion deafness, providing evidence that cortical processing of auditory motion is performed in a specialized module within the posterior STG...
  22. ncbi 128-channel EEG source imaging in epilepsy: clinical yield and localization precision
    Christoph M Michel
    Functional Brain Mapping Laboratory, Neurology Clinic, University Hospital, Geneva, Switzerland
    J Clin Neurophysiol 21:71-83. 2004
    ..The authors conclude that high-resolution interictal EEG source imaging is a valuable noninvasive functional neuroimaging technique. The speed, ease, flexibility, and low cost of this technique warrant its use in clinical practice...
  23. ncbi Is the right amygdala involved in visuospatial memory? Evidence from MRI volumetric measures
    Alan J Pegna
    Neuropsychology Unit, Neurology Clinic, Geneva, Switzerland
    Eur Neurol 47:148-55. 2002
    ..We suggest that the difficulty encountered in establishing a correlation between right temporal structures and visuospatial memory could come both from the type of test employed and the structures considered...
  24. ncbi Dynamics of brain activation during an explicit word and image recognition task: an electrophysiological study
    Asaid Khateb
    Department of Neurology, University Hospital, Geneva, Switzerland
    Brain Topogr 14:197-213. 2002
    ..These findings suggest that, while sharing an initial common network, recognition of verbal and pictorial stimuli subsequently engage different brain regions during time periods generally allocated to the semantic processing of stimuli...
  25. ncbi Stimulating illusory own-body perceptions
    Olaf Blanke
    Laboratory of Presurgical Epilepsy Evaluation, Program of Functional Neurology and Neurosurgery, University Hospital of Geneva, Geneva 1211, Switzerland
    Nature 419:269-70. 2002
    ....
  26. ncbi Human locomotion: levodopa keeps you straight
    Christine Mohr
    Department of Rehabilitation, University Hospital Geneva, CH 1211, Geneva, Switzerland
    Neurosci Lett 339:115-8. 2003
    ..We conjecture that a task-dependent dopamine demand during our task was satisfied by levodopa supplementation, and over-proportionately so by the right hemisphere...
  27. ncbi Processing of semantic categorical and associative relations: an ERP mapping study
    Asaid Khateb
    Neuropsychology Unit, Department of Neurology, University Hospital, 24 Rue Micheli du Crest, Geneva, 14 1211, Switzerland
    Int J Psychophysiol 49:41-55. 2003
    ..Our data suggest that the processing of CR and AR words depend on the same neural network in the LH...
  28. ncbi Direction-selective motion blindness after unilateral posterior brain damage
    Olaf Blanke
    Department of Neurology, University Hospital of Geneva, 24 Rue Micheli du Crest, 1211 Geneva, Switzerland
    Eur J Neurosci 18:709-22. 2003
    ..Third, lesion analysis showed that unilateral damage, not only the human homologue of MT/V5 but also to parieto-occipital cortex, leads to MB...
  29. ncbi Hearing of a presence
    Olaf Blanke
    Functional Brain Mapping Laboratory, Geneva University Hospital, Geneva, Switzerland
    Neurocase 9:329-39. 2003
    ..Based on these findings, it is suggested that the paroxysmal hearing of a person nearby corresponds to an auditory disorder of somatognosia...
  30. ncbi Out-of-body experience and autoscopy of neurological origin
    Olaf Blanke
    Laboratory of Presurgical Epilepsy Evaluation, Programme of Functional Neurology and Neurosurgery, University Hospital, Geneva, Switzerland
    Brain 127:243-58. 2004
    ....
  31. ncbi Electrical neuroimaging reveals early generator modulation to emotional words
    Stephanie Ortigue
    The Functional Brain Mapping Laboratory, The Neurology Clinic, University Hospital of Geneva, 1211 Geneva, Switzerland
    Neuroimage 21:1242-51. 2004
    ..These data support the existence of a specialized brain network triggered by the emotional connotation of words at a very early processing stage...
  32. ncbi The metaphysical art of Giorgio de Chirico. Migraine or epilepsy?
    Olaf Blanke
    Department of Neurology, Geneva University Hospital, Geneva, Switzerland
    Eur Neurol 50:191-4. 2003
    ..Here we rediscuss de Chirico's symptoms critically and suggest that, if his symptoms were of neurological origin, they rather relate to temporal lobe epilepsy than migraine...
  33. ncbi Hands, arms, and minds: interactions between posture and thought
    Christine Mohr
    Department of Neurology, University Hospital Zurich, Zurich, Switzerland
    J Clin Exp Neuropsychol 25:1000-10. 2003
    ..This association is interpreted in the frame of lesser hemispheric asymmetries in subjects bordering to schizotypal personalities...
  34. ncbi Nonstereotyped responding in positive schizotypy after a single dose of levodopa
    Christine Mohr
    Functional Brain Mapping Laboratory, University Hospital Geneva, Geneva, Switzerland
    Neuropsychopharmacology 29:1741-51. 2004
    ..This dissociation may point to protective neurochemical mechanisms preventing healthy schizotypes from developing full-blown psychotic symptoms...
  35. ncbi Usefulness of ambulatory 7-day ECG monitoring for the detection of atrial fibrillation and flutter after acute stroke and transient ischemic attack
    Denis Jabaudon
    Department of Neurology, University Hospital Geneva, Rue Micheli du Crest 24, 1211 Geneve 4, Switzerland Email
    Stroke 35:1647-51. 2004
    ....
  36. ncbi Brain state-dependent functional hemispheric specialization in men but not in women
    Christine Mohr
    The Functional Brain Mapping Laboratory of the Neurology Clinic, University Hospital Geneva, Geneva, Switzerland
    Cereb Cortex 15:1451-8. 2005
    ..We suggest that 'split-brain' research may be marginally describable by a model, but only in exceptional situations, while in connected brains this functional hemispheric specialization is only one of many dynamic states...
  37. ncbi Psychometric schizotypy modulates levodopa effects on lateralized lexical decision performance
    Christine Mohr
    Department of Neurology, Functional Brain Mapping Laboratory, University Hospital Geneva, Rue Micheli du Crest 24, 1211 Geneva 14, Switzerland
    J Psychiatr Res 39:241-50. 2005
    ..We conjecture that the healthy brain compensates through intact neurochemical mechanisms an increased DA concentration, in particular for persons with elevated positive psychotic-like features...
  38. doi Dyskinesia-induced postural instability in Parkinson's disease
    Stéphane Armand
    Kinesiology Laboratory, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
    Parkinsonism Relat Disord 15:359-64. 2009
    ..Our results suggest that LID may compromise balance and independently contribute to postural instability in advanced PD...
  39. doi Perceptual distortion in homonymous paracentral scotomas
    Nikolaos A Mavrakanas
    Department of Clinical Neurosciences, University of Geneva Hospitals, Geneva, Switzerland
    J Neuroophthalmol 29:37-42. 2009
    ..To investigate this question, we studied variations of perceptual spatial distortion in the visual field of patients with homonymous paracentral scotoma...
  40. ncbi Fulminant Lewy body disease
    Isabelle Momjian-Mayor
    Department of Neurology, Geneva University Hospitals and Medical School, Geneva, Switzerland
    Mov Disord 21:1748-51. 2006
    ....
  41. ncbi Polyopic heautoscopy: Case report and review of the literature
    Peter Brugger
    Department of Neurology, University Hospital Zurich, Zurich, Switzerland
    Cortex 42:666-74. 2006
    ....
  42. ncbi Hemineglect: take a look at the back space
    Isabelle Viaud-Delmon
    Department of Neurology, University Hospital of Geneva, Geneva, Switzerland
    Ann Neurol 62:418-22. 2007
    ..These observations suggest that of the three Euclidean dimensions (up/down, left/right, and front/back), at least the latter two are modularly and separately represented in the human brain...
  43. ncbi Room tilt illusion influenced by head position
    Chen Zhao
    Ophthalmology Clinic, Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, Switzerland
    J Neuroophthalmol 27:297-9. 2007
    ..The episodes ceased 10 days after the stroke. This provocation by head position supports the idea that pathologic visual-vestibular interaction is at the basis of the room tilt illusion...
  44. ncbi Compulsive singing: another aspect of punding in Parkinson's disease
    Christophe Bonvin
    Department of Neurology, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
    Ann Neurol 62:525-8. 2007
    ..Sharing many features with punding, this singing behavior is proposed as a distinct manifestation of the dopamine dysregulation syndrome in Parkinson's disease...
  45. ncbi Arm folding, hand clasping, and Luria's concept of "latent left-handedness"
    Christine Mohr
    University of Zurich, Switzerland
    Laterality 11:15-32. 2006
    ..Consistent left-top preference for the combined AF/HC measure appears to predict right-handedness...
  46. ncbi Motor control and cerebral hemispheric specialization in highly qualified judo wrestlers
    Maxim Mikheev
    Department of Neurology, Medical Academy of Postgraduate Studies, Repischeva 4 8 7, 197349 St Petersburg, Russia
    Neuropsychologia 40:1209-19. 2002
    ....
  47. ncbi Visual consciousness in health and disease
    Andrew R Whatham
    Neuro Ophthalmology Unit, Ophthalmology Clinic, Department of Clinical Neurosciences and Dermatology, Geneva University Hospitals, Rue Micheli du Crest, 1211 Geneva, 14 Switzerland
    Neurol Clin 21:647-86, vi. 2003
    ..It also presents recent research about how conscious awareness of vision might be represented at a neural level in the central nervous system...
  48. ncbi Neural mechanisms of embodiment: asomatognosia due to premotor cortex damage
    Shahar Arzy
    Laboratory of Cognitive Neuroscience, Brain Mind Institute, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
    Arch Neurol 63:1022-5. 2006
    ..However, recent neuroimaging and electrophysiological studies suggest that corporeal awareness and embodiment of body parts are instead linked to the premotor cortex of both hemispheres...
  49. ncbi Postictal but not interictal hemispatial neglect in patients with seizures of lateralized onset
    Olga Prilipko
    Neurology Clinic, University Hospitals of Geneva, Switzerland
    Epilepsia 47:2046-51. 2006
    ..Group studies involving patients with seizures with a lateralized focus have demonstrated transient dysfunctions in memory and language; however, so far, only two case reports have described transient neglect after an epileptic seizure...
  50. ncbi Neural processing of illusory and real contours revealed by high-density ERP mapping
    Alan J Pegna
    Functional Brain Mapping Laboratory Neurology Department, University Hospital, 24 rue Micheli du Crest CH 1211 Geneva 14, Switzerland
    Neuroreport 13:965-8. 2002
    ..These results suggest that both IC and RC processing modulate a common network associated with filling-in processes and figure-ground segregation...
  51. ncbi Hemispheric specialization of human inferior temporal cortex during coarse-to-fine and fine-to-coarse analysis of natural visual scenes
    Carole Peyrin
    Laboratory for Neurology and Imaging of Cognition, Clinic of Neurology and Department of Neurosciences, University Medical Center, University of Geneva, Switzerland
    Neuroimage 28:464-73. 2005
    ....
  52. ncbi Hyperfamiliarity for unknown faces after left lateral temporo-occipital venous infarction: a double dissociation with prosopagnosia
    Patrik Vuilleumier
    Institute of Cognitive Neuroscience, University College London, UK
    Brain 126:889-907. 2003
    ..Hence, abnormal bias in attributing some personal meaning to unknown faces could be evoked by spurious signals of familiarity based on irrelevant affective associations in the right hemisphere...
  53. ncbi Colour neglect in an artist
    Olaf Blanke
    Lancet 361:264. 2003
  54. ncbi Why revelations have occurred on mountains? Linking mystical experiences and cognitive neuroscience
    Shahar Arzy
    Laboratory of Cognitive Neuroscience, Brain Mind Institute, Ecole Polytechnique Federale de Lausanne EPFL, Lausanne, Switzerland
    Med Hypotheses 65:841-5. 2005
    ..Cognitive neurosciences, in turn, might profit from the research of mysticism in their endeavor to further our understanding of mechanisms of corporeal awareness and self consciousness...