Loss of social cognition memory impairs Alzheimer's disease (AD) patients to recognize family members, friends, and caregivers. We investigate the role of perineuronal nets (PNNs), specialized coats of extracellular matrix around hippocampal CA2 neurons in AD‐associated social memory impairments. At time of import, last updated (by provider) on: Jan 28 2026 Contributors: ; [Jiang Shan, Cope Elise, Sontheimer Harlad, Kasprzak Izabela, Escalante Miguel, Prim Courtney, Li Jiangtao, Fleischel Erik, Hou Silky, Chaunsali Lata, Tewari Bhanu, Olsen Michelle]