The developmental story of L2/3 circuits: through hyperconnectivity to sparsity

Big team effort lead by Ying to track the functional development of L2/3 circuits and in vivo activity in A1. Turns out there is substantial transient functional hyperconnectivity esp. from subgranular layers paired with increased pairwise correlations during the critical period. Maybe these connections play a role in plasticity during the critical period? Read the whole story here in Cerebral Cortex.