Research papers
1.Rinneberg H., Neukammer J., König A., Vietzke K., Hieronymus H., Kohl M., Grabka H.-J., Jönsson G. (1987) High Resolution Laser Spectroscopy of Ba Rydberg Atoms. Hyperfine Interactions 38:515-530
2.Neukammer J., Rinneberg H., Vietzke K., König A., Hieronymus H., Kohl M., Grabka H.-J., Wunner G. (1987) Spectroscopy of Rydberg atoms at n = 500: Observation of quasi-Landau resonances in low magnetic fields. Phys. Rev. Lett. 59: 2947-2950 
Neukammer 87.pdf
3.König A., Neukammer J., Vietzke K., Kohl M., Grabka H.-J., Hieronymus H., Rinneberg H. (1988) Transition from Magnetic to Electric Field (F || B) Dominated Spectra of Barium at Threshold. Phys. Rev. A (Rapid Communications) 38:547-550
4.Hieronymus H., Kohl M., Neukammer J., König A., Rinneberg H., Springer-Bolk H (1990) Perturbed angular distribution of electrons following photoionization of 6sns 1S0 barium Rydberg states. Phys. Rev. A: 41, 1477-1491
5.Kohl M., Neukammer J., Sukowski U., Rinneberg H., Sinn H.-J., Friedrich E. A., Graschew G., Schlag P., Wöhrle D. (1991) Imaging of tumors by time-delayed laser-induced fluorescence. SPIE 1525, 26-34
6.Wöhrle D., Ardeschirpur A., Heuermann A., Müller S., Graschew G., Rinneberg H., Kohl M., Neukammer J. (1992) Polymeric porphyrins as new photocatalysts in photodynamic therapy of cancer. Macromol. Chem., Macromol. Symp. 59: 17 - 33
7.Kohl M., Sukowski U., Ebert B., Neukammer J., Rinneberg H., Nowak Ch. (1993) Imaging of superficially growing tumors by delayed observation of laser-induced fluorescence SPIE 1881
8.Kohl M., Neukammer J., Sukowski U., Rinneberg H., Wöhrle D., Sinn H.-J., Friedrich E. A.(1993) Delayed observation of laser-induced fluorescence for imaging of tumors Appl. Physics B56: 131-138
9.Kohl M., Essenpreis M., Böcker D., Cope M. (1994) Influence of glucose concentration on light scattering in tissue-simulating phantoms Optics Lett 19: 2170-2172
10.Kohl M., Essenpreis M., Cope M. (1995) Influence of glucose concentration upon the transport of light in tissue simulating phantom Phys Med Biol 40: 1267-1287
11.Kohl M. , Essenpreis M. , Böcker D., Cope M. (1995) Glucose induced changes in scattering and light transport in tissue simulating phantoms SPIE 2389, 780-788
12.Watson R., Kohl M., O'Brien P., Lawrence S., Delpy D. T., Cope M. (1996) Fetal Brain Oxygenation during Labor studied by Frequency Domain Spectroscopy OSA Proceedings: Biomedical Optical Spectroscopy and Diagnostics 117-122
13.Kohl M., Watson R., Cope M. (1996) New method for the absolute determination of absorption coefficients in highly scattering media in frequency domain Optics Letters 21: 1519-1521
14.O’Brien P., Lawrence S., Watson R., Kohl M., Wyatt J., Delpy D. T. (1996) Intrapartum fetal cerebral near infrared spectroscopy: apparent change in oxygenation demonstrated in a nonviable fetus Br. J. Obstet. Gynaecol 103: 1053-1054 (letter)
15.Simpson R., Laufer J., Kohl M., Essenpreis M., Cope M. (1997) Absorption and scattering properties of dermis and subdermis measured in vitro for near infra red wavelength SPIE 2979: 307-313
16.Heekeren H., Wenzel R., Obrig H., Ruben J., Ndayisaba J.-P., Luo Q., Dale A., Nioka S., Kohl M., Dirnagl U., Villringer A., Chance B. (1997) SPIE 2979: 847-858
17.Kohl M., Watson R., Cope M. (1997) Optical properties of highly scattering media determined from changes in attenuation, phase and modulation depth SPIE 2979: 365-374
18.Kohl M., Watson R., Chow G., Roberts I., Delpy D. T., Cope M. (1997) Monitoring of cerebral hemodynamics during open-heart surgery in children using NIR phase resolved spectroscopy” SPIE 2979 : 408-416 Kohl_SPIE2979_97.pdf
19.Kohl M., Watson R., Cope M. (1997) Optical properties of highly scattering media determined from changes in attenuation, phase and modulation depth Applied Optics 36: 105-115
20.Kohl M., Nolte C., Heekeren H. R., Horst S., Scholz U., Obrig H., Villringer A. (1997) Changes in cytochrome-oxidase oxidation in the occipital cortex during visual stimulation: Improvement in sensitivity by the determination of the wavelength dependence of the differential pathlength factor Proc. SPIE 3194: 18-27
21.Nickell S., Essenpreis M., Krämer U., Kohl M., Böcker D. (1997) Determination of optical properties by variation of boundary conditions Proc. SPIE 3194: 254-261
22.Kohl M., Lindauer U., Dirnagl U., Villringer A. (1998) Separation of Changes in Light Scattering and Chromophore Concentrations during Cortical Spreading Depression in Rat Optics Lett 23: 555-557 Kohl_OptLet_1998.tif
23.Kohl M., Nolte C., Heekeren H. R., Horst S., Scholz U., Obrig H., Villringer A. (1998) Determination of the wavelength dependence of the diffeerential pathlength factor from near infrared pulse signals Phys. Med. Biol. 42: 1771-82 Kohl_PhyMedBiol_1998.pdf
24.Simpson C. R., Kohl M., Essenpreis M., Cope M. (1998) Near-infrared optical properties of ex vivo human skin and subcutaneous tissues measured using the Monte Carlo inversion technique Phys. Med. Biol. 43: 2465-2478 Simpson_PhyMedBiol_1998.pdf
25.Laufer J., Simpson R., Kohl M., Essenpreis M., Cope M. (1998) Effect of temperature on the optical properties of ex vivo human dermis and subdermis Phys. Med. Biol. 43: 2479-2489 Laufer_PhyMedBiol_1998.pdf
26.Nolte C., Kohl M., Scholz U., Weih M., Villringer A. (1998) Characterization of the pulse signal over the human head by Near Infrared Spectroscopy Adv. Exp Med. Biol . 454: 115 - 123.
27.Kohl M., Lindauer U., Dirnagl U., Villringer A. (1998) Investigation of cortical spreading depression in rats by near infrared spectroscopy: scattering and oxygenation changes Trends in Optics and Photonics III, 240 - 244.
28.Scholz U., Kohl M., Nolte Ch., Hennig C., Villringer A. (1998) Multivariate spectral analysis of the beat-to-beat sampled cortical NIRS signals and the heart rate variability SPIE 3566, 106 - 111.
29.Ebert B., Kohl M., Sukowski U., Rinneberg H., Winter H., Bellmann K.-P., Audring H. (1998) Fluorescence Imaging of cutaneous malignant melanomas and naevi Lasers Med. Sci. 13, 204 - 208.
30.Heekeren H. R., Kohl M., Obrig H., Wenzel R., Pannwitz W. v., Matcher S. J., Cooper C. E., Villringer A. (1999) Noninvasive assessment of changes in Cytochrome-C-Oxidase oxidation in human subjects during visual stimulation. J. Cereb. Blood Flow and Metab 19, 592-603.
31.Pringle J., Roberts C., Kohl M., Lekeux P. (1999) Near infrared spectroscopy in large animals; optical pathlength and influence of hair covering and epidermal pigmentation Veterinary Journal 158, 48-52.
32.Syré F., Obrig H., Steinbrink S., Kohl M., Wenzel R., Villringer A (1999) Are VEP Correlated Fast Optical Changes Detectable in the Adult by Non Invasive Near Infrared Spectroscopy (NIRS)? Adv. Exp. Med. 1999
33.Ntziachristos V., Kohl M., Ma H., Chance B. (2000) Oximetry based on diffuse photon wave differentials Med. Phys. 27, 410 - 421. Ntziachristos_MedPhy_2000.pdf
34.Obrig H, Wenzel R, Kohl M, Horst S, Wobst P, Steinbrink J, Thomas F, Villringer A (2000) Near-infrared spectroscopy: does it function in functional activation studies of the adult brain? Int. J. Psychophysiol. 35, 125-42. Obrig_JPsyPhy_2000.pdf
35.Wenzel R., Wobst P., Heekeren H. H., Kwong K. K., Brandt S. A., Kohl M., Obrig H., Dirnagl U., Villringer A. (2000) Saccadic suppression induces focal hypooxygenation in the occipital cortex. J. Cereb. Blood Flow Metab. 20, 1103-10.
36.Steinbrink J., Kohl M., Obrig H., Curio G., Syre F., Thomas F., Wabnitz H., Rinneberg H., Villringer A. (2000) Somatosensory evoked fast optical intensity changes detected non-invasively in the adult human head Neurosc. Let. 291, 105- 108. Steinbrink_NeuroscLet_2000.pdf
37.Kohl M., Lindauer U., Royl G., Kühl M., Gold L., Villringer A., Dirnagl U. (2000) Physical model for the spectroscopic analysis of cortical intrinsic optical signals Phys. Med. Biol. 45, 3749 – 3764. Kohl_PMB_2000.pdf
38.Obrig H., Neufang M., Wenzel R., Kohl M., Steinbrink J., Villringer A. (2000) Spontaneous low frequency oscillations of cerebral haemodynamics and metabolism under rest and visual stimulation in adults. Neuroimage 12:623-639. Obrig_NI_00.pdf
39.Wobst P., Wenzel R., Kohl M., Obrig H., Villringer A. (2001) Linear aspects of changes in blood oxygenation and cytochrome oxidase oxidation during brain activation. Neuroimage 13, 520-530. Wobst_NI_01.pdf
40.Lindauer U., Royl G., Kühl M., Leithner Ch., Gold L., Gethmann J., Kohl M., Villringer A., Dirnagl U. (2001) No Evidence for Early Decrease in Blood Oxygenation in Rat Whisker Cortex in Response to Functional Activation Neuroimage 13, 988 - 1001 Lindauer_NeuroImag_01.pdf
41.Kohl M., Obrig H., Steinbrink J., Malak J., Uludag K., Villringer A (2001) Non-invasive cerebral blood flow monitoring by a dye bolus method: separation of extra- and intracerebral absorption changes by frequency-domain spectroscopy SPIE 4250 , 296 – 300.
42.Uludag K., Kohl M., Steinbrink J., Obrig H., Villringer A.(2002) Crosstalk in the Lambert-Beer calculation for near-infrared wavelength estimated by Monte simulations J. Biomed Opt. 7, 51-59 Uludag JBO 02.pdf
43.Hellmuth Obrig, Heike Israel, Matthias Kohl-Bareis, Kamil Uludag, Rüdiger Wenzel, Bianca Müller, Guy Arnold & Arno Villringer (2002) Habituation of the Visually Evoked Potential (VEP) and its Vascular Response: Implications for Neurovascular Coupling in the Healthy Adult. Neuroimage accepted for publication
44.Kohl-Bareis M., Obrig H., Steinbrink J., Malak J., Uludag K., Villringer A (2002) Non-invasive monitoring of cerebral blood flow by a dye bolus method: separation of brain from skin and skull signals J. Biomed Optics accepted for publication July 2002
Contributions to books
1.Rinneberg H., Neukammer J., König A., Vietzke K., Hieronymus H., Kohl M., Jönsson G. (1986) High-n Rydberg Atoms in External Fields. in: Highly Excited States of Atoms and Molecules, S. Kano, M. Matsuzawa (Eds.), 7 - 16
2.Kohl M., Neukammer J., Rinneberg H., Stahlmann H. (1987) Imaging of Laser-induced fluorescence emitted by tumor localizing photosensitizers. In: Biosensors, Applications in Medicine, Environmental Protection, and Process Control. R.D. Schmid, F. Scheller (Eds.); GBF Monographs Vol. 13, VCH Verlagsgesellschaft Weinheim, 385-387
3.Rinneberg H., Neukammer J., König A., Vietzke K., Hieronymus H., Kohl M., Grabka H.-J., Jönsson G. (1987) Highly Excited Barium Rydberg States in External Fields. Laser Spectroscopy VIII, Proc.8. Intern. Conf. Are (Schweden), W. Persson, S. Svanberg (Eds.), Springer-Verlag, 183-184
4.Rinneberg H., Neukammer J., Kohl M., König A., Vietzke K., Hieronymus H., Grabka H.-J. (1989) Highly Excited Barium Rydberg Atoms in External Electric, Magnetic, and Combined Fields. Atomic Spectra and Collisions in External Fields. K.T. Taylo, M.H. Nayfeh and C.W. Clark (Eds.), Plenum Press, 193-213
5.Ebert B., Hanke Th., Kohl M., Sukowski U., Haseloff R., Naether N., Roeder B., Rinneberg H. (1991) LB films as a model system for photosensitizers in membranes. Proceedings of the 13th Annual International IEEE Conference "New Frontiers of Biomedical Engineering - Innovations from Nuclear to Space Technology", 1533
6.Kohl M., Neukammer J., Sukowski U., Rinneberg H., Sinn H.-J., Friedrich E. A., Graschew G., Schlag P., Wöhrle D. (1992) In-vitro imaging of tumors by delayed fluorescence. In: Laser in der Medizin / in Medicine, ed. by: W. Waidelich, R. Waidelich, A. Hofstetter; Springer, 312-316.
7.Kohl M., Neukammer J., Sukowski U., Rinneberg H., Friedrich E. A., Sinn H.-J., Wöhrle D., Schlag P., Graschew G., Maier-Borst W. (1993) In vitro imaging of tumors by time-delayed fluorescence. In: Optics in Life Sciences, ed. by G. von Bally; Springer Series
8.Pannwitz W. v., Obrig H., Heekeren H. R., Müller A., Kohl M., Wolf R., Wenzel R., Dirnagl U., Villringer A. (1997) Clinical approaches in cerebral near infrared spectroscopy. in: Transcranial Cerebral Oximetry, Eds G. Litscher, G. Schwarz, Pabst Science Pub. 166-183
Proceedings
Proceedings of Photon Propagation in Tissue IV, SPIE Vol. 3566
Editors: D. A. Benaron, B. Chance, M. Ferrari, M. Kohl (1998)
Abstracts
1. Kohl M., Neukammer J., Grabka H.-J., Vietzke K., Rinneberg H.: (1986) Barium-Rydberg States in combined electric and magnetic Fields. 18th EGAS, Marburg .
2. Vietzke K., König A., Neukammer J., Kohl M., Hieronymus H., Rinneberg H., Jönsson G.: (1986) Diamagnetism of Barium Rydberg States in the l- and n-Mixing Region. 18th EGAS, Marburg.
3. Vietzke K., Kohl M., Hieronymus H., Neukammer J., Rinneberg H., Jönsson G.(1986) Diamagnetismus von Ba-Rydbergzuständen im Bereich der l-Mischung. Frühjahrstagung der Deutschen Physikalischen Gesellschaft, Heidelberg.
4. Hieronymus H., Neukammer J., König A., Vietzke K., Kohl M., Rinneberg H., Jönsson G., Springer-Bolk H. (1987) Winkelverteilung der von autoionisierenden Barium-Rydbergzuständen 6pns, nd; J=1 emittierten Elektronen. Frühjahrstagung der Deutschen Physikalischen Gesellschaft, Göttingen.
5. Rinneberg H., Neukammer J., Hieronymus H., König A., Vietzke K., Kohl M., Jönsson G. (1987) Barium Rydbergzustände mit hohen Hauptquantenzahlen in äußeren Feldern. Frühjahrstagung der Deutschen Physikalischen Gesellschaft, Göttingen.
6. Kohl M., Neukammer J., Grabka H.-J., Vietzke K., Rinneberg H. (1987) Barium Rydberg-Atome in kombinierten elektrischen und magnetischen Feldern. Frühjahrstagung der Deutschen Physikalischen Gesellschaft, Göttingen.
7. Neukammer J., König A., Vietzke K., Kohl M., Hieronymus H., Rinneberg H. (1987) Hochauflösende Laserspektroskopie von Barium Rydberg-Zuständen im Bereich starker n-Mischung". Frühjahrstagung der Deutschen Physikalischen Gesellschaft, Göttingen.
8. König A., Vietzke K., Kohl M., Grabka H.-J., Hieronymus H., Neukammer J., Rinneberg H. (1988) Verbotene Kreuzungen zwischen autoionisierenden Stark-Komponenten von Barium Rydberg-Zuständen. Frühjahrstagung der Deutschen Physikalischen Gesellschaft, Bonn.
9. König A., Neukammer J., Vietzke K., Kohl M., Grabka H.-J., Hieronymus H., Rinneberg H. (1988) Quasi-Landau Resonanzen von Barium im äußeren elektrischen Feld. Frühjahrstagung der Deutschen Physikalischen Gesellschaft, Bonn.
10. Kohl M., Neukammer J., Rinneberg H. (1989) Imaging of Laser-induced Fluorescence Emitted by Tumor Localizing Photosensitizers. 2nd GBF Workshop on Biosensors, Braunschweig.
11. Kohl M., Neukammer J., Rinneberg H. (1989) Lokalisation von mit Photosensibilisatoren markierten Tumoren mittels Laser-induzierter Fluoreszenz. 5. Treffpunkt Medizintechnik, Berlin.
12. Kohl M., Neukammer J., Sukowski U., Rinneberg H. et al. (1990) Methodische Entwicklungen zur Abbildung von Tumoren anhand Laser-induzierter Fluoreszenz. 6. Treffpunkt Medizintechnik, Berlin.
13. Sukowski U., Kohl M., Neukammer J., Rinneberg H. (1990) In vitro imaging of tumors using macromolecular linked porphyrins. International Conference on Optics in Life Sciences (ICO-15), Garmisch-Partenkirchen.
14. Neukammer J., Kohl M., Sukowski U., Rinneberg H. (1990) In vitro imaging of tumors using macromolecular linked porphyrins. 3rd Meeting of the International Photodynamic Assiciation, Buffalo, USA, 17.-21.Juli.
15. Ebert B., Hanke T., Kohl M., Sukowski U., Haseloff R., Naether D., Röder B., Rinneberg H. (1991) LB films as a model system for photosensitizer in membranes. 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Systems, Orlando.
16. Sukowski U., Kohl M., Neukammer J., Rinneberg H. (1991) In vitro imaging of tumors by time delayed fluorescence. 10. Internationaler Kongreß "Laser Medizin", München.
17. Kohl M., Neukammer J., Sukowski U., Rinneberg H. (1991) Imaging of tumors by time-delayed laser-induced fluorescence". Med Tech 91, Berlin.
18. Kohl M., Neukammer J., Sukowski U., Rinneberg H. (1991) Time-delayed fluorescence imaging for medical diagnostics. Conference on Lasers and Electro-Optics (Cleo'91), Baltimore.
19. Kohl M., Neukammer J., Sukowski U., Rinneberg H., Friedrich E., Sinn H.-J., Wöhrle D., Schlag P., Graschew G., Maier-Borst W. (1991) In-vitro imaging of tumors by time delayed fluorescence. ZIM-GBF Workshop "Biosensors: Fundamentals, Technologies, and Applications", Bogensee.
20. Rinneberg H., Kohl M., Ebert B., Neukammer J., Sukowski U. (1992) Abbildung oberflächlich wachsender Tumore mittels zeitverzögerter laserinduzierter Fluoreszenz. Optik 92, Berlin.
21. Kohl M., Nowak Ch., Sukowski U., Ebert B., Neukammer J., Rinneberg H. (1992) Imaging of transplanted Lewis lung carcinoma in-vivo by delayed detection of laser-induced fluorescence. International Conference on Photodynamic Therapy and Medical Laser Applications, Mailand.
22. Rinneberg H., Kohl M., Ebert B., Sukowski U., Neukammer J., Nowak Ch. (1993) Detection of superficially growing tumors by time-resolved laser-induced fluorescence. Biomedical Optics Europe '93, Budapest.
23. Ebert B., Kohl M., Sukowski U., Neukammer J., Rinneberg H., Nowak Ch. (1993) Imaging of Lewis lung carcinoma in vivo by observation of laser-induced fluorescence. Biomedical Optics Europe '93, Budapest.
24. Kohl M., Ebert B., Sukowski U., Neukammer J., Rinneberg H., H. Winter, K.-P. Bellmann, H. Audring, I. Baeger (1993) Fluorescence Imaging of cutaneous malignant melanoma and nevi. 11. Intern. Kongreß "Laser Medizin", München.
25. Kohl M., Ebert B., Sukowski U., Neukammer J., Rinneberg H., Nowak Ch. (1993) Abbildung von mit Fluoreszenzfarbstoffen markierten Tumoren mittels Laser-induzierter Fluoreszenz. DPG-Frühjahrstagung Berlin.
26. Kohl M., Sukowski U., Ebert B., Neukammer J., Rinneberg H., Nowak Ch. (1993) Imaging of superficially growing tumors by delayed observation of laser-induced fluorescence. International Conference on Biomedical Optics '93, Los Angeles.
27. Kohl M. (1995) Nicht-invasive Diagnostik in der medizinischen Optik: Beispiele zur Streuung von Licht im Gewebe und Gewebe simulierenden Phantomen, invited talk, E. Merck, Darmstadt.
28. Kohl M., M. Essenpreis, D. Böcker, Cope M. (1995) Influence of glucose concentration upon light scattering in tissue simulating phantoms. SPIE 2389 Optical Tomography, photon migration and spectroscopy of tissue and model media: Theory, human studies and instrumentation, San Jose.
29. Watson R., Kohl M., P. O'Brien, S. Lawrence, Delpy D. T., Cope M. (1996) Fetal Brain Oxygenation during Labor studied by Frequency Domain Spectroscopy, OSA, Biomedical Optical Spectroscopy and Diagnostics, Orlando.
30. Kohl M., Heekeren H. R., Nolte C., Obrig H., Pannwitz W. v., Villringer A., Cooper C. (1997) Changes in cytochrome-oxidas oxidation in the occipital cortex during visual stimulation, SPIE San Remo.
31. Nickell S., Essenpreis M., Kohl M., Krämer U., Böcker D. (1997) Determination of optical properties by varation of the boundary conditions. SPIE San Remo.
32. Kohl M., Nolte C., Heekeren H. R., Pannwitz W. v., Obrig H., Villringer A. (1997) Determination of the Wavelength Dependence of the Differential Pathlength Factor for Near Infrared Spectroscopy from Pulse Signals. ISOTT, Milwaukee.
33. Heekeren H. R., Kohl M., Obrig H., Pannwitz W. v., Wenzel R., Cooper C., Villringer A. (1997) Cytochrome-C-Oxidase Oxidation Increases During Visual Stimulation. ISOTT, Milwaukee.
34. Heekeren H. R., Wenzel R., Ramshorn A., Brandt S. A., Kohl M., Obrig H., Villringer A. (1997) Deactivation: Just the Opposite of Activation? A Near-Infrared Spectroscopy Study. ISOTT, Milwaukee.
35. Heekeren H. R., Wenzel R., Brandt S. A., Ramshorn A., Obrig H., Pannwitz W. v., Villringer K., Kurth R., Kohl M., Villringer A. (1997) Hemoglobin oxygenation during cerebral activation and deactivation. NeuroImage 97, Copenhagen.
36. Villringer A, Heekeren H. R., Obrig H., Pannwitz W. v., Ramshorn A., Kohl M., Villringer K., Cooper C. (1997) Cytochrome-oxidas oxidation in the occipital cortex during visual stimulation - a whole-spectrum near-infrared spectroscopy study. NeuroImage 97, Copenhagen .
37. Simpson R., Laufer J., Kohl M., Essenpreis M., Cope M. (1997) Absorption and scattering properties of dermis and subdermis measured in vitro for near infra red wavelength. Bios’97: Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II, San Jose.
38. Heekeren H., Wenzel R., Obrig H., Rubens J., Ndayisaba J. P., Luo Q., Dale A., Nioka S., Kohl M., Dirnagel U., Villringer A., Chance B. (1997) Functioal human brain mapping during visual stimualtion using near-infrared light. SPIE 2979: Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II, San José.
39. Kohl M., Watson R., Cope M. (1997) Optical properties of highly scattering media determined from changes in attenuation, phase and modulation depth. Bios’97: Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II, San Jose.
40. Watson R., Kohl M., Chow G., Roberts I., Delpy D., Cope M. (1997) Monitoring of cerebral hemodynamics during open-heart surgery in children using NIR phase resolved spectroscopy. Bios’97: Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II San Jose.
41. Watson R., Kohl M., Lawrence S., O´Brien P., Delpy D., Cope M. (1997) Estimation of oxzgenation saturation in the fetal brain during labor by frequency domain spectroscopy. Bios’97: Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II San Jose.
42. Kohl M., Watson R., Cope M. (1997) Muscle oxygen saturation studied by phase resolved near-infrared spectroscopy. Bios’97: Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II San Jose.
43. Obrig H., Thomas F., Wenzel R., Steinbrink J., Kohl M., Dirnagl U., Villringer A. (1998) Haemodynamic response to contingent negative variation (CNV) over premotor areas detected by near infrared spectroscopy. Neuroscience, Los Angeles.
44. Wobst P., Wenzel R., Kohl M., Villringer A. (1998) Assessment of linearity of the oxygenation response to visual stimulation. Neuroscience, Los Angeles.
45. Wenzel R., Wobst P., Kohl M., Obrig H., Dirnagl U., Villringer A. (1998) Event-related oxygenatioin changes as measured by near infrared spectroscopy. Neuroscience, Los Angeles.
46. Wobst P., Wenzel R., Kohl M., Villringer A. (1998) Frequency-Dependent Changes of Hemoglobin Oxygenation during Saccadic Eye Movement. Human Brain Mapping, Montreal,.
47. Wenzel R., Horst S., Obrig H., Hennig C., Kohl M., Villringer A. (1998) Localised cytochrome-oxidase redox state and haemoglobin oxygenation response over visual area MT shown with a multilocular full-spectrum NIRS. Human Brain Mapping, Montreal.
48. Kohl M., Villringer A. (1998) Near Infrared spectrosciop of the human brain: assessment of physiological and pathological brain activity. OSA, Advances in Optical Imaging and Photon Migration, Orlando, invited talk.
49. Kohl M., Lindauer U., Dirnagl U., Villringer A. (1998) Investigation of cortical spreading depression in rats by near infrared spectroscopy OSA, Advances in Optical Imaging and Photon Migration, Orlando.
50. Villringer A. , Pannwitz W. v., Obrig H., Heekeren H. R., Wenzel R., Kohl M. (1998) Near-infrared spectroscopy of the human brain: experimental validation and steps towards clinical application. ANIM.
51. Scholz U, Kohl M, Nolte Ch, Hennig C, Villringer A (1998) Multivariate spectral analysis of the beat-to-beat sampled cortical NIRS signals and the heart rate variability. BiOS Stockholm.
52. Wobst P., Kohl M., Wenzel R., Villringer A. Frequency-dependent changes of hemoglobin oxygenation during saccadic eye movements (1998) BiOS Stockholm.
53. Laufer J., Simpson R., Kohl M., Cope M. (1999) Changes in the optical properties of human dermis and subdermis for temperature variations within the physiological range. BIOS 99.
54. Kohl M. (1999) Optical Spectroscopy and Imaging of the Brain: Physiological and Pathological Activity in Humans and Animals Seminar, Polish Academy of Science, International Centre of Biocybernetics (Warsaw), Invited talk.
55. Thomas F, Steinbrink J., Wobst P, Syré F, Kohl M, Obrig H, Wenzel R., Villringer A. (1999) Signal Physiology in Functional Cerebral Activation Studie Bogensee
56. Lindauer U., Kohl M., Royl G., Kühl M., Villringer A., Vanzetta I., Grinvald A., Dirnagl U. (1999) Early Deoxygenation Changes Measured by Near Infrared Spectroscopy during Whisker Barrel Cortex Activation in Rats: Influence of Modification of Lambert-Beer Algorithm. Brain
57. Buchheim K., Schuchmann S., Siegmund H., Weissinger F., Kohl M., Heinemann U., Meierkord H. (1999) Spread pattern, velocity and wave length dependence of spreading depression in combined rat entorhinal cortex-hippocampal slices: An optical imaging study. Human Brain Mapping, Düsseldorf.
58. Thomas F., Wenzel R., Steinbrink J., Obrig H., Kohl M., Scholz U., Villringer A. (1999) Nonlinear Traits in the Response of Deoxyhemoglobin to Short Visual Stimuli Human Brain Mapping, Düsseldorf.
59. Neufang M., Obrig H., Wenzel R., Kohl M., Scholz U., Malak J., Villringer A. (1999) Spontaneous Low Frequency Oscillations are Attenuated by Visual Stimulation: A NIRS Study. Human Brain Mapping, Düsseldorf.
60. Steinbrink J., Syré F., Kohl M., Obrig H., Wenzel R., Villringer A. (1999) Fast optical signals: Are they detectable through the intact adult skull? Human Brain Mapping, Düsseldorf.
61. Kohl M. (1999) Optical Spectroscopy and Imaging of the Brain: Physiological and Pathological Activity in Humans and Animals Annual Meeting of the Optical Society of America (OSA) Santa Clara, Invited talk.
62. Kohl M. (2000) Optics as a tool for the assessment of brain function and pathology. OSA Biomedical topical meeting 'Optical imaging and photon migration' April 2000. Invited Talk
63. Kohl M., Lindauer U, Royl G., Kühl M., Villringer A., Dirnagl U. (2000) Monte Carlo Based correction of Lambert-Beer Alogorithm: Early Deoxygenation changes measured by optical spectroscopy during whisker barrel cortex activation in rats. OSA Biomedical topical meeting 'Optical imaging and photon migration' April 2000.
64. Steinbrink J., Wabnitz H., Rinneberg H., Obrig H., Kohl M., Malak J. , Villringer A. Depth localization of absorption changes by single distance time domain reflectometry on the adult human head. OSA Biomedical topical meeting, April 2000.
65. Kohl M., Obrig H., Steinbrink J., Malak J., Wabnitz H., Rinneberg H., Villringer A. Optical Bed-side Assessment of Cerebral Perfusion - a Near-Infrared-Spectroscopy study. Human Brain Mapping HBM, San Antonio 2000.
66. Haux D., Obrig H., Kohl M., Uludag K., Wenzel R., Villringer A.Contribution of Systemic Haemodynamic Changes to Cerebral Cortical Oxygenation Changes investigated by a combined NIRS and BOLD-fMRI approach. ISOTT 2000
67. Haux D., Obrig H., Kohl M., Uludag K, Villringer A. Neuroscience 2000
68. Lindauer U, Kohl M, Gold L, Leithner C., Dirnagl U (2001) Human Brain Mapping
69. Kohl M., Steinbrink J., Obrig H., Villringer A. (2001) Non-invasive cerebral blood flow monitoring with NIRS dye bolus method. BiOS 2001
70. Steinbrink J, Kohl M., Kempf F., Obrig H., Curio G., Villringer A. (2001) Somatosensory evoked fast optical intensity changes detected non-invasively in the adult human head BiOS 2001
71. Royl G, Leithner Ch., Kohl M., Lindauer U, Dirnagl U., Kwong K., Mandeville J. B. (2001) The BOLD post-stimulus undershoot: fMRI versus Imaging Spectroscopy Int Soc. MR in Medicine
72. Israel H., Obrig H., Kohl M., Uludag K., Müller B., Wenzel R., Buckow C., Arnold G., Villringer A. (2001) Is neuro-vascular coupling altered in interictal migraineurs? A combined visually evoked potential (VEP) and Near-Infrared-Spectroscopy (NIRS) Approach. Human Brain Mapping
73. Buckow C., Kohl M, Zank H, Obrig H, Steinbrink J., Uludag K., Villringer A. (2001) Assessment of cortical activation by multi channel optical topography Human Brain Mapping
74. G. Wübbeler, S. Leistner, B.-M. Mackert, M. Burghoff , K. Uludag, H. Obrig, M. Kohl, A. Villringer,G. Curio, Lutz Trahms (2001) Simultane Messung von DC-MEG und Nahinfrarot-spektroskopie (NIRS) bei motorischer Aktivierung BMTH
76. Israel, H Obrig, M Kohl, K Uludag, B Müller, S Schuh-Hofer, A Villringer, G Arnold (2001) Is deficient interictal VEP habituation accompanied by an altered vascular response in migraine patients? Int. Headache C. 2001
77. Kohl-Bareis M., H. Obrig, H. Zank, C. Buckow, J. Steinbrink, A. Villringer (2002) Bolus mapping of the NIR dye ICG in stroke patients with a multichannel topography. OSA BioMed, Miami.
79. Kohl-Bareis M. C. Buckow, H. Zank, H. Obrig, J. Steinbrink, A. Villringer (2002) Multi channel NIR topography for the assessment of cortical activation. OSA BioMed Miami
80. Uludag K., H. Obrig, R. Wenzel, M. Kohl, A. Villringer (2002) Cytochrom-c-oxidase measured in near-infrared spectroscopy – real signal or an artifact? OSA BioMed, Miami
82. H Obrig, R Wenzel, K Uludag, H Israel, C Buckow, F Kempf, H Zank, M Kohl-Bareis, A Villringer Cortical response in functional activation studies of the brain: Can we rely on the vascular response alone? Human Brain Mapping 2002, Senai, Japan
