Learning and memory have been closely linked to strengthening of synaptic connections between neurons (i.e., synaptic plasticity) within the dentate gyrus (DG)- CA3 - CA1 trisynaptic circuit of the (semanticscholar.org)
The results showed that the learning experience triggered the formation of new synaptic connections in the auditory cortex. (sciencedaily.com)
One study concluded that magnesium threonate increases the number of synaptic connections between brain cells and boosts the density of synapses (30). (healthy-holistic-living.com)