Figure 3.

G_ME controls. (A) Stability: comparison of G_ME measured in chinchilla No. 5 before (solid line) and after (dotted line) taking the pressure sensor out of the vestibule and recalibrating it. Differences were less than 2 dB in magnitude and less than 0.01 cycles in phase. (B) Effect of interrupting the ossicular chain: G_ME in chinchilla No. 8 with an intact ossicular chain (solid line), and after interrupting the incudo-stapedial joint (dotted line). (C) Effect of plugging the vestibular hole on G_ME: in one animal (chinchilla No. 9), after sealing around the pressure sensor with a gel of high molecular weight (dashed line), there was a limited increase in |G_ME|. After removing the gel (dotted line), G_ME went back to baseline (solid line). The 95% CI (shaded areas) represent the variability of repeated measurements in the same condition.