Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Larry B. Sorensen"'
Publikováno v:
PLoS Computational Biology, Vol 5, Iss 12, p e1000609 (2009)
Recent studies have identified broadband phenomena in the electric potentials produced by the brain. We report the finding of power-law scaling in these signals using subdural electrocorticographic recordings from the surface of human cortex. The pow
Externí odkaz:
https://doaj.org/article/f55f843190964fa5be69bf333331e871
Multi-scale analysis of neural activity in humans: Implications for micro-scale electrocorticography
Autor:
Conor Sayres, Richard B. Brown, Spencer Kellis, Bradley Greger, Jeffrey G. Ojemann, Kevin O’Neill, Felix Darvas, Larry B. Sorensen, Paul A. House
Publikováno v:
Clinical Neurophysiology. 127(1):591-601
Objective Electrocorticography grids have been used to study and diagnose neural pathophysiology for over 50 years, and recently have been used for various neural prosthetic applications. Here we provide evidence that micro-scale electrodes are bette
Autor:
Rajesh P. N. Rao, Reinhold Scherer, Felix Darvas, Larry B. Sorensen, Jeffrey G. Ojemann, Kai J. Miller
Publikováno v:
NeuroImage. 49:930-938
High gamma (HG) power changes during motor activity, especially at frequencies above 70 Hz, play an important role in functional cortical mapping and as control signals for BCI (brain computer interface) applications. Most studies of HG activity have
Autor:
Kai J. Miller, M. den Nijs, Jeffrey G. Ojemann, Rajesh P. N. Rao, Pradeep Shenoy, Larry B. Sorensen
Publikováno v:
IEEE Transactions on Biomedical Engineering. 55:1634-1637
Electrocorticographic spectral changes during movement show a behavioral inflection in the classic gamma band (30-70 Hz). We quantify this inflection and demonstrate that it limits classification accuracy. We call for the designation of a functionall
Publikováno v:
Surface Science. 573:191-203
The three-dimensional structure of the calcite (104)–water interface has been determined with surface X-ray scattering. Nine crystal truncation rods (including specular and non-specular rods) were measured providing both vertical and lateral sensit
Publikováno v:
Acta Materialia. 52:5083-5091
Variant rearrangements induced by external magnetic field in Fe–Pd FCT martensite transformed from FCC austenite single crystals have been investigated by means of optical microscopy. Fe–Pd single crystals in fully martensite state contain two la
Publikováno v:
Geochimica et Cosmochimica Acta. 64:1221-1228
High-resolution, in situ X-ray reflectivity measurements were made of the calcite (104)–water interface in calcite-saturated aqueous solutions at pH values ranging from 6.8 to 12.1 and low PCO2. The X-ray reflectivity data, taken over a momentum tr
Publikováno v:
Physical Review E. 59:3048-3058
In this paper, we study the dynamic density autocorrelation function $G(\mathbf{r},t)$ for smectic-$A$ films in the layer sliding geometry. We first postulate a scaling form for G, and then we show that our postulated scaling form holds by comparing
Autor:
Andrzej Poniewierski, Allen C. Price, Robert Hołyst, John Toner, Larry B. Sorensen, Stephen D. Kevan
Publikováno v:
Physical Review Letters. 82:755-758
We have used coherent soft-x-ray dynamic light scattering at the Bragg peak to measure the thermally driven layer fluctuations in freely suspended films of five different smectic-A liquid crystals: 4O.8, 7O.7, 8CB, 8OCB, and 10OCB. The measured relax
Autor:
M. I. Bell, G. H. Lander, G. M. Watson, John J. Rehr, Larry B. Sorensen, Thomas Gouder, Matthew Newville, Charles E. Bouldin, Julie O. Cross
Publikováno v:
Physical Review B. 58:11215-11225
Improved calculations of Bragg peak intensities near atomic resonance are obtained by including the effect of the local environment around the resonant atoms on the resonant scattering amplitudes $\ensuremath{\Delta}{f=f}^{\ensuremath{'}}{+if}^{\ensu