This video from Neuroscientifically Challenged discusses Long-Term Potentiation, a synaptic plasticity mechanism.
Long-term potentiation, or LTP, is a process by which connections between neurons become stronger with frequent activation. LTP is thought to be a way in which the brain changes in response to experience, and thus may be an mechanism underlying learning and memory. In this video, I discuss one type of LTP: NMDA-receptor dependent LTP. I outline the mechanism underlying NMDA-receptor LTP and describe how it is thought to strengthen synaptic connections where it occurs.
Also read: Novel Plasticity Mechanism Found