CAMK2G and Alzheimer disease: To clarify whether these two subtypes of 5‐HT receptors participate in aberrant amygdala function in AD condition, we selectively knocked down 5‐HT2AR in pyramidal neurons with AAV‐CaMKII‐sh5‐HT2AR or 5‐HT1AR in PV interneurons with AAV‐DIO‐sh5‐HT1AR in PV‐Cre mice at PW7 and examined animal emotional performance as well as neuronal excitability at PW10 (Figure S6; Figure S7a,b).