An oligodendrocyte precursor cell undergoing temporal changes in position within the observed scanning frame. A and B: Scanning ion conductance microscopic images of the same cell obtained at t = 0 minutes and t = 10 minutes. Note the change in position of the cell body. Due to the dislocation of the cell soma the two scans include variable amounts of the processes extending from the soma. To obtain a quantification of the cell soma volume, an algorithm was developed to separate the soma from the processes.