Publications of Fritjof Helmchen

Helmchen, F.; Denk, W.; Kerr, J. N.: Miniaturization of two-photon microscopy for imaging in freely moving animals. Cold Spring Harbor Protocols 2013 (10), pp. 904 - 913 (2013)

Helmchen, F.; Hübener, M.: Neuronale Netzwerke im Rampenlicht: Mit leuchtenden Proteinen zelluläre Aktivitätsmuster entschlüsseln. Neuroforum 13 (2), pp. 47 - 55 (2013)

Helmchen, F.; Denk, W.: Deep tissue two-photon microscopy. Nature Methods 2 (12), pp. 932 - 940 (2005)

Dittgen, T.; Nimmerjahn, A.; Komai, S.; Licznerski, P.; Waters, D. J.; Margrie, T. W.; Helmchen, F.; Denk, W.; Brecht, M.; Osten, P.: Lentivirus−based genetic manipulations of cortical neurons and their optical and electrophysiological monitoring in vivo. Proceedings of the National Academy of Sciences of the United States of America 101 (52), pp. 18206 - 18211 (2004)

Helmchen, F.; Denk, W.: New developments in multiphoton microscopy. Current Opinion in Neurobiology 12 (5), pp. 593 - 601 (2002)

Helmchen, F.; Tank, D. W.; Denk, W.: Enhanced two−photon excitation through optical fiber by single−mode propagation in a large core. Applied Optics 41 (15), pp. 2930 - 2934 (2002)

Helmchen, F.; Fee, M. S.; Tank, D. W.; Denk, W.: A miniature head−mounted two−photon microscope: High−resolution brain imaging in freely moving animals. Neuron 31, pp. 903 - 912 (2001)

Helmchen, F.; Svoboda, K.; Denk, W.; Tank, D. W.: In vivo dendritic calcium dynamics in deep-layer cortical pyramidal neurons. Nature Neuroscience 2 (11), pp. 989 - 996 (1999)

Svoboda, K.; Helmchen, F.; Denk, W.; Tank, D. W.: Spread of dendritic excitation in layer 2/3 pyramidal neurons in rat barrel cortex in vivo. Nature Neuroscience 2 (1), pp. 65 - 73 (1999)

Kleinfeld, D.; Mitra, P. P.; Helmchen, F.; Denk, W.: Fluctuations and stimulus−induced changes in blood flow observed in individual capillaries in layers 2 through 4 of rat neocortex. Proceedings of the National Academy of Sciences of the United States of America 95 (26), pp. 15741 - 15746 (1998)

Helmchen, F.; Denk, W.; Kerr, J. N. D.: Miniaturization of two-photon microscopy for imaging in freely moving animals. In: Imaging in Neuroscience: A Laboratory Manual, pp. 851 - 862 (Ed. Helmchen, F.). Cold Spring Harbor Laboratory Press, Cold Spring Harbor (2011)