What does metaplasticity mean? - (May/17/2011 )

I know the term "synaptic plasticity" but what does "synaptic metaplasticity" mean? oO Any idea?

I believe it refers to changes in the ability of neurons to undergo the changes in their firing properties typical of synaptic plasticity. It's basically "plasticity of synaptic plasticity"

 metaplasticity entails a change in the physiological or biochemical state of neurons or synapses that alters their ability to generate synaptic plasticity.

Actually, you should check out this great lecture on presynaptic plasticity: http://hstalks.com/main/view_talk.php?t=2780&r=798&c=252

thank you, that´s helpful