Figure 9

Sources of difference between BD and MD. The left panel illustrates that the first factor of the MD approximation (43) increases as the gap junction conductance variation, \(\gamma\), increases, while the right panel illustrates that the second factor of (43) decreases as the extracellular volume fraction, \(\delta _e\) increases, explaining the MD and BD differences observed in Fig. 8. In the left panel, the extracellular space is 20% (\(\delta _e=0.2\)) and \(F(\lambda )\) and \(\lambda\) are defined as in (31) and (32), respectively. In the right panel, \(\gamma =0.5\).