Fig. 4.

Measurement of axonal and dendritic outgrowth from primary cortical neurons over time. (a) Average axon length in different confluence levels. The average was computed on $N=60$ axons (LC) and $N=84$ (MC). (b) Average dendrite length in different confluence conditions. The average was computed over $N\sim 145$ dendrites (LC) and $N\sim 210$ dendrites (MC). The dash lines represent linear fits with $a$ as slope, in units of micrometer per hour.