Search Results - "Walter, Donald O."

Local regulation of the threshold for calcium sparks in rat ventricular myocytes: role of sodium-calcium exchange by Goldhaber, Joshua I., Lamp, Scott T., Walter, Donald O., Garfinkel, Alan, Fukumoto, Gary H., Weiss, James N.

“…To determine whether Na + -Ca 2+ exchange modulates Ca 2+ sparks, we studied enzymatically isolated patch clamped rat ventricular myocytes loaded with the Ca…”
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Prognostic value of dobutamine stress echocardiography in predicting cardiac events in patients with known or suspected coronary artery disease by Krivokapich, Janine, Child, John S, Walter, Donald O, Garfinkel, Alan

“…OBJECTIVES The study sought to determine the utility of dobutamine stress echocardiography (DSE) in predicting cardiac events in the year after testing…”
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Changes in brain functional connectivity in Alzheimer-type and multi-infarct dementia by Leuchter, A F, Newton, T F, Cook, I A, Walter, D O, Rosenberg-Thompson, S, Lachenbruch, P A

“…Clinical and neuropathological evaluation of elderly subjects with dementia has traditionally concentrated upon the focal distribution of brain disease,…”
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Spectral analysis for electroencephalograms: mathematical determination of neurophysiological relationships from records of limited duration by Walter, D O

“…Spectral analysis is a mathematical method which contains and generalizes frequency analysis. The form of spectral analysis most applicable to EEG is…”
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Quasiperiodicity and chaos in cardiac fibrillation by Garfinkel, A, Chen, P S, Walter, D O, Karagueuzian, H S, Kogan, B, Evans, S J, Karpoukhin, M, Hwang, C, Uchida, T, Gotoh, M, Nwasokwa, O, Sager, P, Weiss, J N

“…In cardiac fibrillation, disorganized waves of electrical activity meander through the heart, and coherent contractile function is lost. We studied…”
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Electroencephalographic spectra and coherence in the diagnosis of Alzheimer's-type and multi-infarct dementia. A pilot study by Leuchter, A F, Spar, J E, Walter, D O, Weiner, H

“…The accurate diagnosis of dementia is difficult because there are no specific physiologic tests. Computer-analyzed electroencephalography (EEG) has shown…”
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Estimation of critical power with nonlinear and linear models by Gaesser, G A, Carnevale, T J, Garfinkel, A, Walter, D O, Womack, C J

“…Sixteen young, healthy males each performed five to seven randomly assigned, exhaustive exercise bouts on a cycle ergometer, with each bout on a separate day…”
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Two approximations to the median evoked response by Walter, D O

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Cordance: a new method for assessment of cerebral perfusion and metabolism using quantitative electroencephalography by Leuchter, A F, Cook, I A, Lufkin, R B, Dunkin, J, Newton, T F, Cummings, J L, Mackey, J K, Walter, D O

“…Increased slow-wave and decreased fast-wave activity on the electroencephalogram is common in brain dysfunction and may be caused by partial cortical…”
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On units and dimensions for reporting spectral intensities by Walter, D O

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Simple manual plotting of contours as a method of EEG analysis by Naitoh, P, Walter, D O

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Autonomic responses during a replicable interrogation by Berkhout, Jan, Walter, Donald O, Adey, W. Ross

“…Calculated heart-rate and pulse-volume responses to visual and auditory stimuli associated with a replicable interrogation as stimulus-triggered across-S…”
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Discriminating among states of consciousness by EEG measurements. A study of four subjects by Walter, D O, Rhodes, J M, Adey, W R

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Quantitative analysis of depth spiking in relation to seizure foci in patients with temporal lobe epilepsy by Lieb, J P, Woods, S C, Siccardi, A, Crandall, P H, Walter, D O, Leake, B

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Alterations of the human electroencephalogram induced by stressful verbal activity by Berkhout, J, Walter, D O, Adey, W R

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Serial quantitative EEG among elderly subjects with delirium by Jacobson, S A, Leuchter, A F, Walter, D O, Weiner, H

“…Serial quantitative electroencephalographic (QEEG) studies were performed in 33 elderly delirious, demented, and control subjects to determine which QEEG…”
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Assessment of cerebral perfusion using quantitative EEG cordance by Leuchter, A F, Cook, I A, Mena, I, Dunkin, J J, Cummings, J L, Newton, T F, Migneco, O, Lufkin, R B, Walter, D O, Lachenbruch, P A

“…Brain electrical activity is related to cerebral perfusion. The nature of this relationship is unclear, however, and surface-recorded activity has not been a…”
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Alexithymia: an experimental study of cerebral commissurotomy patients and normal control subjects by TenHouten, W D, Hoppe, K D, Bogen, J E, Walter, D O

“…This study assessed alexithymia in six patients with complete cerebral commissurotomy, two patients with partial commissurotomy, and eight matched control…”
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Dynamics of muscle sympathetic nerve activity in advanced heart failure patients by Nguyen, A H, Garfinkel, A, Walter, D O, Hamilton, M A, Fonarow, G C, Moriguchi, J D, Hage, A, Weiss, J N, Middlekauff, H R

“…Muscle sympathetic nerve activity (MSNA) is increased in patients with heart failure compared with healthy subjects. We applied spectral and correlation…”
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Electroencephalographic coherence in acquired immune deficiency syndrome by Newton, T F, Leuchter, A F, Walter, D O, van Gorp, W G, Morgenstern, H, Miller, E N, Lieb, K, Visscher, B, Satz, P, Weiner, H

“…We studied a quantitative electroencephalographic (EEG) measure, coherence, in 28 patients with acquired immune deficiency syndrome (AIDS) and 56 uninfected…”
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