Fig. 3. Ultrasonic vocalizations emitted by adult male C57BL/6J (B6) and BTBR T+tf/J (BTBR) mice in the presence of female urine.
a) Time course for the number of ultrasonic vocalizations emitted by B6 subjects (black circles) and BTBR subjects (white circles) in the presence of a B6 female urine spot. b) Time course for the number of ultrasonic vocalizations emitted by B6 and BTBR in the presence of a BTBR female urine spot. Data are presented as means ± standard errors of the mean. The time course panels illustrate the test sessions in 10 s time blocks.