Table 2.

Dominant frequency of USV syllables of MIA and control offspring in three social encounters.

	1F	2F	3+F	HM	CV	CX	FT	UP	DN	ST	RC
P10 pup
Saline	71.1±1.8	70.2±2.2	59.8±1.9	66.8±1.6	84.5±0.8	85.5±1.6	70.8±2.6	86.5±2.1	80.5±1.4	86.0±1.4	78.2±3.0
Poly(I:C)	72.3±2.6	68.6±1.5	59.3±1.9	66.8±1.7	85.8±0.8	86.4±0.7	76.3±2.9	90.4±1.1	82.1±2.0	87.5±1.3	81.9±2.8
Male-female
Saline	72.0±0.7	71.7±0.6	65.4±3.2	63.6±3.2	77.4±1.2	72.4±1.1	70.5±4.4	7.8±1.4	70.0±3.7	78.6±1.8	73.9±1.1
Poly(I:C)	72.9±1.2	73.8±1.5	69.5±1.2	62.2±3.5	78.5±1.2	72.9±1.0	68.1±3.7	79.0±1.2	75.7±1.5	78.2±1.8	73.1±1.0
Male-male
Saline	79.6±0.8	81.7±1.2	75.8±2.3	77.3±1.3	86.1±2.1	80.0±1.7	84.4±3.6	82.4±0.6	83.9±1.6	87.1±1.5	80.3±0.9
Poly(I:C)	75.6±2.1	81.3±2.6	69.7±1.1	68.6±1.6	89.2±3.0	80.3±2.3	73.4±3.7*	82.3±1.7	78.8±2.3	82.2±2.1	73.6±2.1

Dominant frequency for each syllable type (at peak of frequency) is measured in kHz. Data are mean values ± SEM. USV classification: 1F, one frequency step; 2F, two frequency step; 3F, three and more frequency step; HM, harmonic; CV, chevron; CX, complex; FT, flat; UP, upward; DN, downward; ST, short.

^*p < 0.05.