Fig. 5. Simultaneous intracellular recordings of LPd5, LPd6 and LPd7 neurons during a magnetic stimulus treatment. Action potentials are between 90 and 100 mV in amplitude. Conventions as in Fig. 2. Spiking in LPd5 and LPd6 increased in response to the magnetic stimulus while spiking in LPd7 decreased. (B) Representative simultaneous intracellular recordings of LPd5, LPd6 and LPd7 showing common postsynaptic potentials (PSPs). The first two vertical lines indicate times at which common synaptic input occurred in all three neurons. Subsequent vertical lines indicate times at which synchronous PSPs occurred in LPd5 and LPd6 but not in LPd7. In this and many other recordings, LPd5 and LPd6 shared more synchronous PSPs with each other than with LPd7.