Ventral midline thalamus lesion prevents persistence of new (learning-triggered) hippocampal spines, delayed neocortical spinogenesis, and spatial memory durability. - Klein MM; Cholvin T; Cosquer B; Salvadori A; Le Mero J; Kourouma L; Boutillier AL; Pereira de Vasconcelos A; Cassel JC (Brain structure & function, 2019)