Commenting on why humans might have two different sets of nerves, the International Herald Tribune states: “The slow fibers function from the earliest hours of life, perhaps even in the womb, while the fast fibers develop slowly after birth.
ولا تتجاوب هذه الشبكة الا مع اللمسات اللطيفة ،‏ فتثير اجزاء الدماغ المختصة بالعواطف .‏