0000000000845214

AUTHOR

Christian Grefkes

0000-0002-1656-720x

showing 3 related works from this author

Performing allocentric visuospatial judgments with induced distortion of the egocentric reference frame: an fMRI study with clinical implications

2003

The temporary improvement of visuospatial neglect during galvanic vestibular stimulation (Scand. J. Rehabil. Med. 31 (1999)117) may result from correction of the spatial reference frame distorted by the responsible lesion. Prior to an investigation of the neural basis of this effect in neurological patients, exploration of the neural mechanisms underlying such procedures in normals is required to provide insight into the physiological basis thereof. Despite their clinical impact, the neural mechanisms underlying the interaction of galvanic (and other) vestibular manipulations with visuospatial processing (and indeed the neural bases of how spatial reference frames are computed in man) remai…

AdultMaleEye MovementsCognitive Neurosciencemedia_common.quotation_subjectVisuospatial neglectNeglectPerceptual DisordersPremotor cortexCerebellumImage Processing Computer-AssistedmedicineHumansGalvanic vestibular stimulationmedia_commonCerebral CortexVestibular systemMagnetic Resonance ImagingElectric StimulationOxygenNormal volunteersmedicine.anatomical_structureNeurologySpace PerceptionVisual PerceptionRight posteriorFemaleVestibule LabyrinthPsychologyNeurosciencePhotic StimulationPsychomotor PerformanceReference frameCognitive psychologyNeuroImage
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26th Annual Computational Neuroscience Meeting (CNS*2017): Part 2

2017

International audience; No abstract available

0301 basic medicineCerebellumComputer science[SDV]Life Sciences [q-bio]General Neurosciencelcsh:QP351-495Meeting Abstractslcsh:RC321-57103 medical and health sciencesCellular and Molecular Neurosciencelcsh:Neurophysiology and neuropsychology030104 developmental biologymedicine.anatomical_structuremedicineNeuronlcsh:Neurosciences. Biological psychiatry. NeuropsychiatryNeuroscienceComputingMilieux_MISCELLANEOUScomputational neuroscienceBMC Neuroscience
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EP 34. Functional hierarchy within the neural network for optokinetic ‘look’ nystagmus

2016

Item does not contain fulltext Key nodes of neural networks for ocular motor control and visual motion processing have been localized using saccades, smooth pursuit, and optokinetic nystagmus (OKN). Within the context of an independent fMRI study using OKN, 9 bilateral network nodes were localized comprising cortical eye fields in frontal (FEF), supplementary motor (SEF), cingulate (CEF) and parietal cortex (PEF), visual motion centers MT+ and V6, the superior colliculus (SC), the lateral geniculate nucleus (LGN) and the globus pallidus (GP). Here, we examined the network's functional hierarchy as present in the structural co-variation (SCoV) and resting-state (RS) fMRI, and the effect of R…

Communicationbusiness.industrySuperior colliculusPosterior parietal cortexCognitive artificial intelligenceOptokinetic reflexNystagmusLateral geniculate nucleuscomputer.software_genreSensory SystemsSmooth pursuitCorrelationBrain Networks and Neuronal Communication [DI-BCB_DCC_Theme 4]NeurologyVoxelPhysiology (medical)medicineNeurology (clinical)medicine.symptombusinessPsychologyNeurosciencecomputerClinical Neurophysiology
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