The brain-specific microRNA miR-128b regulates the formation of fear-extinction memory

http://www.nature.com/neuro/journal/vaop/ncurrent/full/nn.2891.html

miR-128b is highly expressed in the frontal cortex, and its host gene, regulator of calmodulin signaling (Rcs, also known as Arpp21) is essential for mediating dopamine transmission⁹, which is critical in the ILPFC for the formation of fear-extinction memories¹⁰.