Plasticity is defined as the capacity of the nervous system to change.
As we discussed in the previous chapters, plasticity is especially prominent during development. Clearly, however, the ability to learn new skills and establish new memories continues though out life. This chapter attempts to answer this important question. Example for short-term synaptic plasticity is illustrated in Fig. 23.1. Facilitation , a transient increase in synaptic strength, occurs when two or more action potential invade the pre-synaptic terminal in close succession.