(A) Average startle amplitudes recorded in acoustic startle response tests performed on wild type (n=10) and Smarca4+/E1548K (n=9) mice between 60-120 dB SPL. Error bars indicate the SEM. **P<0.01, ****P<0.0001 (Two-way ANOVA with Holm-Sidak correction for multiple comparisons). (B) Average auditory brainstem response thresholds measured in response to pure tones at 6, 12, 18, 24, 30 and 35 kHz in wild type (n=9) and Smarca4+/E1548K (n=12) mice. Error bars indicate the SEM. *P<0.01 (Two-way ANOVA with Holm-Sidak correction for multiple comparisons). (C) Average auditory brainstem response thresholds measured in response to broadband (click) stimuli in wild type (n=9) and Smarca4+/E1548K (n=12) mice. **P<0.005 (Student’s t test).