Publications of Fritjof Helmchen

Journal Article (10)

2013
Journal Article
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)
Journal Article
Helmchen, F.; Hübener, M.: Neuronale Netzwerke im Rampenlicht: Mit leuchtenden Proteinen zelluläre Aktivitätsmuster entschlüsseln. Neuroforum 13 (2), pp. 47 - 55 (2013)
2005
Journal Article
Helmchen, F.; Denk, W.: Deep tissue two-photon microscopy. Nature Methods 2 (12), pp. 932 - 940 (2005)
2004
Journal Article
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)
2002
Journal Article
Helmchen, F.; Denk, W.: New developments in multiphoton microscopy. Current Opinion in Neurobiology 12 (5), pp. 593 - 601 (2002)
Journal Article
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)
2001
Journal Article
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)
1999
Journal Article
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)
Journal Article
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)
1998
Journal Article
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)

Book Chapter (1)

2011
Book Chapter
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)
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