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. 2005 Apr 7;565(Pt 2):645–658. doi: 10.1113/jphysiol.2005.083014

Figure 6. Co-excitation of commissural interneurones by group I afferents and from MLF, associated with inhibition from group II afferents.

Figure 6

Example records from two commissural interneurones (A–D and E–H) in which monosynaptic EPSPs were evoked from group I afferents (A and E) and from MLF (B and F) but not from group II afferents, which instead evoked disynaptic IPSPs (C, latency 3.1 ms; H, latency 2.8 ms). In the first interneurone IPSPs were also evoked from contralateral group II afferents (shown in D) and in the second interneurone IPSPs were also evoked from group I afferents (shown in G). Calibration pulses at the beginning of each trace are 0.5 mV in amplitude. Note that the antidromic spikes in A and G are blocked and that only that in C (taken before the record in A) shows the afterhyperpolarization.