Significant correlations among neurophysiological, immunohistological, and behavioral parameters.

<p>(A) Significant correlation was observed between peak-ITC and parvalbumin-immunoreactive neuron density in the mPFC. (B-E) Significant relationships were observed between parvalbumin-immunoreactive neuron density in the mPFC and the duration of approaching (B), parvalbumin-immunoreactive neuron density in the mPFC and the duration of social sniffing (C), parvalbumin-immunoreactive neuron density in the mPFC and the duration of passive contact (D), parvalbumin-immunoreactive neuron density in the hippocampus (Hip) and the duration of approaching (E) (p<0.05). (F, G) Significant relationships were observed between parvalbumin-immunoreactive neuron density in the mPFC and % inhibition at 74 dB in the PPI test (F) and parvalbumin-immunoreactive neuron density in the hippocampus (Hip) and % inhibition at 74 dB in the PPI test (G) (p<0.05). Circles, Cont-DW; squares, Cont-T817; triangles, KO-DW; Crosses, KO-T817.