NTRK2 and Cognitive impairment: To examine whether BDNF-TrkB signaling plays a role in the cognitive deficits of juvenile offspring of poly(I:C)-treated group, we measured the levels of BDNF, p-TrkB and TrkB in prefrontal cortex (PFC), nucleus accumbens (NAc) and CA1, CA3, dentate gyrus (DG) of hippocampus in the juvenile offspring of two groups.