Publications of Hellmuth Obrig

Journal Article (120)

1999
Journal Article
Heekeren, H. R., Kohl, M., Obrig, H., Wenzel, R., Pannwitz, W. V., Matcher, S. J., … Villringer, A. (1999). Noninvasive Assessment of Changes in Cytochrome-C-Oxidase Oxidation in Human Subjects during Visual Stimulation. Journal of Cerebral Blood Flow & Metabolism, 19, 592–603.
1998
Journal Article
Kohl, M., Nolte, C., Heekeren, H. R., Horst, S., Scholz, U., Obrig, H., & Villringer, A. (1998). Determination of the wavelength dependence of the differential pathlength factor from near infrared pulse signals. Physics in Medicine and Biology, 42, 1171–1182.
1997
Journal Article
Heekeren, H., Obrig, H., Wenzel, R., Eberle, K., Ruben, J., Villringer, K., … Villringer, A. (1997). Cerebral haemoglobin oxygenation during sustained visual stimulation: A near–infrared spectroscopy study. Proceedings of the Royal Society of London Series B-Biological Sciences, 352, 743–750.
Journal Article
Arnold, G., Kinze, S., von Pannewitz, H., Obrig, H., & Villringer, A. (1997). Kann man den Blutfluss während der Migräne-Attacke messen? Med-Report, 26, 6.
Journal Article
Heekeren, H. R., Wenzel, R., Obrig, H., Ruben, J., Ndayisaba, J. P., Luo, Q., … Chance, B. (1997). Towards noninvasive optical human brain mapping - improvements of the spectral, temporal and spatial resolution of near-infrared spectroscopy. Proceedings SPIE, 2979, 847–857.
Journal Article
Hirth, C., Obrig, H., Valdueza, J., Dirnagl, U., & Villringer, A. (1997). Simultaneous assessment of cerebral oxygenation and hemodynamics during a motor task. A combined near infrared and transcranial doppler sonography study. Advances in Experimental Medicine and Biology, 411, 461–469.
Journal Article
Hirth, C., Obrig, H., Villringer, K., Bernarding, J., Thiel, A., Dirnagl, U., … Mühlnickl, W. (1997). Towards brain mapping combining near-infrared spectroscopy and high resolution 3D MRI. Advances in Experimental Medicine and Biology, 413, 139–147.
Journal Article
Obrig, H., Hirth, C., Junge-Huelsing, G. J., Doege, C., Wenzel, R., Wolf, T., … Villringer, A. (1997). Length of resting period between stimulation cycles modulates hemodynamic response to a motor stimulus. Advances in Experimental Medicine and Biology, 411, 471–480.
Journal Article
Obrig, H., & Villringer, A. (1997). Near-infrared spectroscopy in functional activation studies: Can NIRS demonstrate cortical activation? Advances in Experimental Medicine and Biology, 413, 113–127.
Journal Article
Ruben, J., Wenzel, R., Obrig, H., Villringer, K., Bernarding, J., Hirth, C., … Villringer, A. (1997). Haemoglobin oxygenation changes during visual stimulation in the occipital cortex. Advances in Experimental Medicine and Biology, 428, 181–187.
Journal Article
Villringer, K., Minoshima, S., Hock, C., Obrig, H., Ziegler, S., Dirnagl, U., … Villringer, A. (1997). Assessment of local brain activation: A simultaneous PET and near-infrared spectroscopy study. Advances in Experimental Medicine and Biology, 413, 149–153.
1996
Journal Article
Wenzel, R., Obrig, H., Ruben, J., Villringer, K., Dirnagl, U., & Villringer, A. (1996). Cerebral blood oxygenation changes induced by visual stimulation in humans. Journal of Biomedical Optics, 1, 399–404.
Journal Article
Brandt, S. A., Davis, T., Obrig, H., Meyer, B. U., Belliveau, J. W., Rosen, B. R., & Villringer, A. (1996). Functional magnetic resonance imaging shows localized brain activation during serial transcranial stimulation in man. NeuroReport, 7, 734–736.
Journal Article
Hirth, C., Obrig, H., Villringer, K., Thiel, A., Bernarding, J., Muehlnickel, W., … Villringer, A. (1996). Non-invasive functional mapping of the human motor cortex using near-infrared spectroscopy. NeuroReport, 7, 1977–1981.
Journal Article
Kleinschmidt, A., Obrig, H., Requardt, M., Merboldt, K. D., Dirnagl, U., Villringer, A., & Frahm, J. (1996). Simultaneous recording of cerebral blood oxygenation changes during human brain activation by magnetic resonance imaging and near-infrared spectroscopy. Journal of Cerebral Blood Flow & Metabolism, 16, 817–826.
Journal Article
Obrig, H., Heekeren, H., Ruben, J., Wenzel, R., Ndayisaba, J. P., Dirnagl, U., & Villringer, A. (1996). Continuous spectrum near-infrared spectroscopy approach in functional activation studies in the human adult. Proceedings SPIE, 2926, 58–66.
Journal Article
Obrig, H., Hirth, C., Junge-Huelsing, G. J., Doege, C., Wolf, T., Dirnagl, U., & Villringer, A. (1996). Cerebral oxygenation changes in response to motor stimulation. Journal of Applied Physiology, 81, 1174–1183.
Journal Article
Obrig, H., Wolf, T., Doege, C., Junge-Huelsing, G. J., Dirnagl, U., & Villringer, A. (1996). Cerebral oxygenation changes during motor and somatosensory stimulation in humans as measured by near-infrared spectroscopy. Advances in Experimental Medicine and Biology, 388, 219–224.
Journal Article
Wolf, T., Lindauer, U., Obrig, H., Dreier, J. P., Back, T., Villringer, A., & Dirnagl, U. (1996). Systemic nitric oxide synthase inhibition does not affect brain oxygenation during cortical spreading depression (CSD) in rats: A noninvasive near infrared spectroscopy (NIRS) and Laser-Doppler flowmetry (LDF) study. Journal of Cerebral Blood Flow & Metabolism, 16, 1100–1107.
Journal Article
Wolf, T., Obrig, H., Villringer, A., & Dirnagl, U. (1996). Extra- and intracellular oxygen supply during cortical spreading depression in the rat. Advances in Experimental Medicine and Biology, 388, 299–304.
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