Perineuronal nets

Reactivation of critical period plasticity in adult auditory cortex through chemogenetic silencing of parvalbumin-positive interneurons

'Manipulating a specific type of neuron in the auditory cortex of rats can restore their brain plasticity.' ~ Futurity

A Brain without Brakes; Reduced Inhibition Is Associated with Enhanced but Dysregulated Plasticity in the Aged Rat Auditory Cortex

'They say you can’t teach old dogs new tricks, but new research shows you can teach an old rat new sounds' ~ NeuroscienceNews

Cortical plasticity

Development, learning, aging and the brain