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. 2015 Jan 30;9:4. doi: 10.3389/fncel.2015.00004

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Copyright © 2015 Luhmann, Fukuda and Kilb.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Spontaneous intracellular calcium fluctuations correlate with migration speed and direction. (A) Granule cells in cerebellar microexplant cultures were loaded with a mixture of the two calcium indicators Fluo-3 and Fura-Red. Upward deflections in Fluo-3/Fura-Red ratio indicate intracellular calcium rise and downward deflections represent calcium decrease. (B) Distance and direction of the same cell as in A. During a recording period of 30 min the migrating neuron exhibited 5 cycles of saltatory movements, which closely correlated with transient intracellular calcium changes. Modified and reproduced with permission from Komuro and Rakic (1996).