Fig. 5. Reproducibility of discharge pattern in mDP. (A-C) Long-term recordings of mDP activity (vertical double wave symbols indicate breaks). Numbers on the right indicate time (min) after spermatophore preparation. Asterisks indicate non-bursting spontaneous spikes of mDP. White horizontal bars indicate periods between subgenital plate opening (left) and spermatophore preparation (right). x, small spikes of an unidentified neurone.