In the article “Corollary Discharge Inhibition of Ascending Auditory Neurons in the Stridulating Cricket,” by James F. A. Poulet and Berthold Hedwig, which appeared on pages 4717-4725 of the June 1, 2003 issue, Figures 3, 4, 5, 6 inadvertently printed with missing scale bars. Correct versions of the figures, as well as each corresponding legend, are printed here.
Low-amplitide hyperpolarizations were normally observed in both AN1 (Ai) and AN2 (Bi) during silent one-winged chirps. Superpositions of AN1 (Aii) and AN2 (Bii) (top traces), triggered by the on set of the wing movement (bottom traces), demonstrate the time course of the hyperpolarizations in relation to the average wing movement. They began just after the start of the closing wing movements, indicated by the dashed lines, and reached a maximum during the consecutive wing opening movements, indicated by the solid line. For additional details see Figure 2.
Ai, Bi, Depolarizations were sometimes observed in recordings of AN1 and AN2 during silent one-winged stridulation. Superimposed recordings of AN1 (Aii) and AN2 (Bii) together with the averaged wing movement and sound demonstrate the timing of the depolarizations in relation to the wing movement. The timing varied from animal to animal. In general, the depolarizations started during wing closing and peaked at the transition from closing to opening. The spikes have been truncated in the superpositions. For additional details see Figure 2.
Response of AN1 and AN2 to wing movement in deafened crickets. EPSPs were elicited in AN1 (A) and AN2 (B) during manual wing movement in deafened crickets. For additional details see Figure 2.
Activity of AN1 and AN2 during fictive stridulation. Low-amplitude hyperpolarizations were recorded in AN1 (Ai) and AN2 (Bi) during the fictive chirps with the similar amplitude and timing as in silently stridulating crickets. Fictive chirps are indicated by thoracic motor activity. Aii, Bii, Superimposed traces of neuron recordings (top) show the timing of the PADs and IPSPs in relation to the averaged, rectified mesothoracic nerve 3A recording (bottom). Meso Nv 3A, Extracellular nerve recording with several units of opener and closer motor neuron activity. For additional details see Figure 2.
