As we acquire a new memory, the connections, or synapses, between certain sets of neurons strengthen. In particular, the receiving end of a pair of these neurons—consisting of a little nub called a spine—gets a little larger. Researchers have long suspected that a brain receptor called TrkB was involved with the growth of spines when we learn, but the new study confirms that the receptor is indeed crucial and delves further into how it works. The key technologies that enabled this finding included a molecular sensor that the group developed to track activity of TrkB, and microscopes that allowed them to visualize a single spine in the area of living mouse brain tissue, all in real time.
read the full article.. medicalxpress.com/news/2016-09-scientists-track-unexpected-mechanisms-memory.html
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