<prompt> Long term potentiation meansEnhancement of signal transmissionIncreased number of receptorsIncreased number of neuronsIncreased muscle tone  <response>: A Enhancement of signal transmission LONG-TERM POTENTIATION LTP: a long-lasting strengthening of the response of a postsynaptic nerve cell to stimulation across the synapse that occurs with repeated stimulation and is thought to be related to learning and long-term memory. Long-term potentiation LTP is a long-lasting enhancement in signal transmission between two neurons that results from stimulating them synchronously. It is one of several phenomena underlying synaptic plasticity, the ability of chemical synapses to change their strength. As memories are thought to be encoded by modification of synaptic strength, LTP is widely considered one of the major cellular mechanisms that underlies learning and memory NMDA receptor-dependent LTP exhibits several properties, including input specificity, associativity, cooperativity, and persisience. 