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Fig. 4. (A) Tetanus-induced short-term depression followed by lasting augmentation.
Depression induced in this unidentified alpha lobe-extrinsic neuron lasted for
about 30 s and was followed by augmentation. Similar time courses of
depression and augmentation were seen in three other neurons; none was
identified as a PE1 neuron. (B) Spike trains of this neuron 70 s after
tetanus. The stimulus artefacts mark the test pulses. (C) Average time course
of depression in five PE1 neurons. Notice the different time scale in A and C.
The ordinates give the number of spikes elicited by a single stimulus
(± S.D. in C.) and the abscissa time in s (A) or min
(C).
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