The microstructure of recollection

The auditory cortex, medial geniculate nucleus, and lateral amygdala are regions in the mouse brain that process auditory fear memory. Strong or weak fear memories depend on the synaptic connectivity between neuron ensembles (engrams) in these regions.

Engrams Synaptic Connectivity

(Science  15 Jun 2018: Vol. 360, Issue 6394, pp. 1182-1183)