Publications of Hellmuth Obrig

Steinbrink, J.; Villringer, A.; Kempf, F.; Haux, D.; Boden, S.; Obrig, H.: Illuminating the BOLD-signal: Combined fMRI-fNIRS studies. Magnetic Resonance Imaging 24, pp. 495 - 505 (2006)

Liebert, A.; Wabnitz, H.; Steinbrink, J.; Moller, M.; MacDonald, R.; Rinneberg, H.; Villringer, A.; Obrig, H.: Bed-side assessment of cerebral perfusion in stroke patients based on optical monitoring of a dye bolus by time-resolved diffuse reflectance. NeuroImage 24, pp. 426 - 435 (2005)

Steinbrink, J.; Kempf, F. C.; Villringer, A.; Obrig, H.: The fast optical signal - Robust or elusive when non-invasively measured in the human adult? NeuroImage 26, pp. 996 - 1008 (2005)

Uludağ, K.; Steinbrink, J.; Villringer, A.; Obrig, H.: Separability and cross talk: Optimizing dual wavelength combinations for near-infrared spectroscopy of the adult head. NeuroImage 22 (2), pp. 583 - 589 (2004)

Buchheim, K.; Obrig, H.; von Pannwitz, W.; Mueller, A.; Heekeren, H.; Villringer, A.; Meierkord, H.: Decrease in haemoglobin oxygenation during absence seizures in adult humans. Neuroscience Letters 354, pp. 119 - 122 (2004)

Liebert, A.; Wabnitz, H.; Steinbrink, J.; Obrig, H.; Moller, M.; MacDonald, R.; Villringer, A.; Rinneberg, H.: Time-resolved multidistance near-infrared spectroscopy of the adult head: intracerebral and extracerebral absorption changes from moments of distribution of times of flight of photons. Applied Optics 43, pp. 3037 - 3047 (2004)

Mackert, B. M.; Wuebbeler, G.; Leistner, S.; Uludag, K.; Obrig, H.; Villringer, A.; Trahms, L.; Curio, G.: Neurovascular coupling analyzed non-invasively in the human brain. NeuroReport 15, pp. 63 - 66 (2004)

Obrig, H.; Steinbrink, J.; Villringer, A.: Response: Near-Infrared Spectroscopy in Stroke: From Research to Clinical Practice. Stroke 35, pp. 2430 - 2431 (2004)

Schroeter, M. L.; Bücheler, M. M.; Müller, K.; Uludag, K.; Obrig, H.; Lohmann, G.; Tittgemeyer, M.; Villringer, A.; von Cramon, D. Y.: Towards a standard analysis for functional near-infrared imaging. NeuroImage 21 (1), pp. 283 - 290 (2004)

Uludağ, K.; Steinbrink, J.; Kohl-Bareis, M.; Wenzel, R.; Villringer, A.; Obrig, H.: Cytochrome-c-oxidase redox changes during visual stimulation measured by near-infrared spectroscopy cannot be explained by a mere cross talk artefact. NeuroImage 22, pp. 109 - 119 (2004)

Villringer, A.; Steinbrink, J.; Obrig, H.: Editorial comment: Cerebral near-infrared spectroscopy: how far away from a routine diagnostic tool? Stroke 35 (1), pp. 70 - 72 (2004)

Cannestra, A. F.; Wartenburger, I.; Obrig, H.; Villringer, A.; Toga, A. W.: Functional assessment of Brocas area using near infrared spectroscopy in humans. NeuroReport 14, pp. 1961 - 1965 (2003)

Moosmann, M.; Ritter, P.; Krastel, I.; Thees, S.; Blankenburg, F.; Taskin, B.; Obrig, H.; Villringer, A.: Correlates of alpha rhythm in functional magnetic resonance imaging and near infrared spectroscopy. NeuroImage 20 (1), pp. 145 - 158 (2003)

Obrig, H.; Steinbrink, J.; Villringer, A.: The blushing brain: Changes in brain colour indicate the functional state of the cerebral cortex. Medical Laser Application 18, pp. 206 - 216 (2003)

Obrig, H.; Villringer, A.: Beyond the visible - imaging the human brain with light. Journal of Cerebral Blood Flow Metabolism 23, pp. 1 - 18 (2003)

Syre, F.; Obrig, H.; Steinbrink, J.; Kohl, M.; Wenzel, R.; Villringer, A.: Are VEP correlated fast optical signals detectable in the human adult by non-invasive nearinfrared spectroscopy (NIRS)? Advances in Experimental Medicine and Biology 530, pp. 421 - 431 (2003)

Kohl-Bareis, M.; Obrig, H.; Steinbrink, J.; Malak, J.; Uludag, K.; Villringer, A.: Noninvasive monitoring of cerebral blood flow by a dye bolus method: Separation of brain from skin and skull signals. Journal of Biomedical Optics 7, pp. 464 - 470 (2002)

Obrig, H.; Israel, H.; Kohl-Bareis, M.; Uludag, K.; Wenzel, R.; Mueller, B.; Arnold, G.; Villringer, A.: Habituation of the visually evoked potential (VEP) and its vascular response: Implications for neurovascular coupling in the healthy adult. NeuroImage 17, pp. 1 - 18 (2002)

Uludag, K.; Kohl, M.; Steinbrink, J.; Obrig, H.; Villringer, A.: Cross talk in the Lambert-Beer calculation for near-infrared wavelengths estimated by Monte Carlo simulations. Journal of Biomedical Optics 7, pp. 51 - 59 (2002)

Steinbrink, J.; Wabnitz, H.; Obrig, H.; Villringer, A.; Rinneberg, H.: Determining changes in NIR absorption using a layered model of the human head. Physics in Medicine and Biology 46, pp. 879 - 896 (2001)