[HTML][HTML] The Arabidopsis Protein Phosphatase PP2C38 Negatively Regulates the Central Immune Kinase BIK1

D Couto, R Niebergall, X Liang, CA Bücherl… - PLoS …, 2016 - journals.plos.org
… Statistical analysis performed using linear mixed effects model implemented in the R
statistical programming language. Letters indicate significantly different means at p < 0.05 after …

Transcranial alternating stimulation in a high gamma frequency range applied over V1 improves contrast perception but does not modulate spatial attention

B Laczó, A Antal, R Niebergall, S Treue, W Paulus - Brain stimulation, 2012 - Elsevier
Spatial visual attention enhances information processing within its focus. Vision at an
attended location is faster, more accurate, of higher spatial resolution, and has an enhanced …

Oxidation of melatonin by carbonate radicals and chemiluminescence emitted during pyrrole ring cleavage

R Hardeland, B Poeggeler, R Niebergall… - Journal of pineal …, 2003 - Wiley Online Library
Oxidation of melatonin was followed by measuring chemiluminescence emitted during pyrrole
ring cleavage, a process leading to the main oxidation product of this indoleamine, N 1 ‐…

The motion of a curling rock

MRA Shegelski, R Niebergall… - Canadian Journal of …, 1996 - cdnsciencepub.com
We present a plausible physical model that accounts for the motion of a curling rock. The
principal features of the model are (i) that the kinetic friction induces melting of the ice with the …

Frequency-dependent attentional modulation of local field potential signals in macaque area MT

PS Khayat, R Niebergall… - Journal of …, 2010 - Soc Neuroscience
… correlated with the LFP-power in the above-30 Hz frequency bands (r 2 range: 0.78–0.94;
p < 0.005, t test), but not in the below-30 Hz bands (r 2 , range 0.04–0.3; p > 0.05, t test) (Fig. 5…

Expansion of MT neurons excitatory receptive fields during covert attentive tracking

R Niebergall, PS Khayat, S Treue… - Journal of …, 2011 - Soc Neuroscience
… (R 2 ) of one of the fits (in either Tracking or Attend-Fixation) exceeded 0.8 and the R 2 of …
where R pref and R antipref are the mean responses to the preferred and antipreferred RDP …

[PDF][PDF] Multifocal attention filters targets from distracters within and beyond primate MT neurons' receptive field boundaries

R Niebergall, PS Khayat, S Treue, JC Martinez-Trujillo - Neuron, 2011 - cell.com
… (R) of the fit was >0.75. A total of 80 units matched this criterion (mean R ± std = 0.89 ± 0.05).
The remaining 77 showed no response modulation by the translating RDPs position (R < …

Attention differentially modulates similar neuronal responses evoked by varying contrast and direction stimuli in area MT

PS Khayat, R Niebergall… - Journal of …, 2010 - Soc Neuroscience
… To determine the strength of the modulation for each response level, we computed a
modulation index MI = (R in − R out )/(R in + R out ), where R in and R out are the responses to …

[BOOK][B] Dupin hypersurfaces in R (5)

RS Niebergall - 1991 - search.proquest.com
… in R"+i via stereographic projection. We next embed Rn+1 into the real projective space with
the map : R"+i … If we let e increase to the radius of the revolving circle r, the map Pr would be …

[HTML][HTML] Feature-based attention influences contextual interactions during motion repulsion

T Tzvetanov, T Womelsdorf, R Niebergall, S Treue - Vision Research, 2006 - Elsevier
Visual perception is strongly shaped by the spatial context in which stimuli are presented.
Using center-surround configurations with oriented stimuli, recent studies suggest that …