1,609 research outputs found
Hemispheric asymmetry in the maturation of the extra striate checkerboard onset evoked potential
Recently we have shown that the single positive deflection in the checkerboard onset evoked potential (EP) of young children of striate origin develops into a negative-positive complex. However, also an early positive peak becomes apparent in the checkerboard onset EP. To determine the origin and development of the activity underlying this early positive deflection we studied the checkerboard onset EPs in children of 9¿16 years of age. It was found that for the children in this age group two different dipole sources are responsible for the activity underlying the pattern onset EP. One of the dipoles corresponds to the activity generated in the striate cortex, whereas a second dipole of extrastriate origin is responsible for the appearance of the early positive deflection. This extrastriate activity shows hemispheric asymmetry, i.e. the strength of the right hemispheric extrastriate source exceeds the strength of the left hemispheric source. These results are in accordance with histological studies of Conel (1939¿1963) [The postnatal development of the human cerebral cortex (Vols 1¿8). Cambridge, Mass.: Harvard Univ. Press] which show that the maturation of the extrastriate areas of the left hemisphere is delayed with respect to the right hemisphere
Positioning uncertainties for pediatric craniospinal irradiation and the impact of image guidance
WS1.1 The effect of ivacaftor, a CFTR potentiator, in patients with cystic fibrosis and a non-G551D-CFTR gating mutation, the KONNECTION study
PO-0651: Pattern of failure in glioblastoma patients after FET-PET and MRI-guided chemo-radiotherapy
Spherical harmonic decomposition applied to spatial-temporal analysis of human high-density EEG
We demonstrate an application of spherical harmonic decomposition to analysis
of the human electroencephalogram (EEG). We implement two methods and discuss
issues specific to analysis of hemispherical, irregularly sampled data.
Performance of the methods and spatial sampling requirements are quantified
using simulated data. The analysis is applied to experimental EEG data,
confirming earlier reports of an approximate frequency-wavenumber relationship
in some bands.Comment: 12 pages, 8 figures, submitted to Phys. Rev. E, uses APS RevTeX
style
154 Poster - Current clinical practice and determinants of the use of delayed breast reconstruction in the Netherlands
From metabolome to phenotype:GC-MS metabolomics of developing mutant barley seeds reveals effects of growth, temperature and genotype
Vegetation succession and herbivory in a salt marsh:Changes induced by sea level rise and silt deposition along an elevational gradient
Vegetation succession and herbivory in a salt marsh:Changes induced by sea level rise and silt deposition along an elevational gradient
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