GRIA2 and infection: Infection of chicken embryos with the RCASBP(B)-RFP-GluA2 siRNA construct had no noticeable effect on the overall pattern of each episode of network activity in the E11 isolated spinal cord when compared with the pattern of activity generated in control (non-infected) or RCASBP(B)-RFP-scrambled siRNA-infected embryos (Fig. 7A,B,C).