FIGURE 1.

Schematic diagram of our cell model. Normal internodes are indicated in black. Internodes close to the t-junction, that had tapering axon diameter and other abnormalities, are crosshatched (for details, see Methods). The first internode on the stem axon is barely visible due to its thin myelin sheath (Table 1). Note that axonal length and diameter are drawn using different calibrations scales. The soma is round.