Fig. 2. Response of the moth tympanal membrane to sound. (A) The amplitude-phase
gain response of the transparent zone (TZ) of N. pronuba. (B) The
coherence signal for the measurement in A. (C) The amplitude gain response of
the TZ of A. exclamationis, X. c-nigrum and X. triangulum.
(D) Measurement of the auditory neural activity of X. c-nigrum
combined with the laser vibrometric measurement of TZ displacement (A1 and A2:
auditory mechanosensory neurones).