Does the creation of memory involve mRNAs crossing the synaptic gap? There is a diagram from a book titled "Teaching with the brain in mind". The diagram shows ![How memories are formed according to "teaching with the brain in mind"]( The diagram appears to show that the "creation of memory" involves "messages coded by RNA" moving through an axon and being released into the synaptic gap, whereupon they presumably bind to the receptors on the other side of the synapse. Unfortunately the book does not seem to provide any sources for this and I have not been able to find any sources corroborating this claim. Can anyone provide any references?

I have never heard of this pathway. Memory is usually assoiciated with synaptic plasticity by ‘Long-term potentiation’ (LTP), which has glutamate as a neurotransmitter. Neuroscience Exploring the brain (Bear, et al,. 2007), has a pretty good explanation of this process, if you're interrested. Motor patterns have more mechanisms than LTP, and are not as well understood.