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Fig. 3. Method for estimating `length constant' of apical dendrites. (A) CSD in a
gray-scale map for data obtained with molecular layer stimulation. A typical
Source/Sink/Source spatial pattern can be observed (distal towards top). (B)
Spatial distribution of current density profile at time indicated by dotted
line in A, corresponding to the peak of the synaptic sink (distal towards
top). Inset in B shows the exponential function fitted to the distal tail of
the synaptic source.