Fig. 5. Induction of fragment motility by mechanical stimulation. See Sequence 5 (2.3 M). A stream stimulus (see text) was applied transiently (duration indicated by gray bar) to a stationary non-polarized fragment. Images of fragment before, during (with blunt micropipette tip next to it), and after stimulation are shown as insets. Position of opposite edges of the non-polarized fragment which became leading and trailing edges after stimulation are plotted as function of time. Note that stimulus displaced the prospective rear edge more than the front edge but, after stimulation, the two edges moved in concert.
