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Fig. 7. Comparison of the postsynaptic activity, evoked by stimulation of the
medial nerve (MN) and the lateral nerve (LN), among these macroglomerular
complex (MGC) sub-regions. The maximum amplitudes of the three responses, the
postsynaptic responses, the GABAergic inhibitory postsynaptic responses and
the excitatory postsynaptic responses were compared among different MGC
sub-regions. (A) When the MN was stimulated, the maximum amplitudes of the
postsynaptic responses in the medial toroid (mT) and central toroid (cT) were
significantly larger than those of the lateral toroid (lT). In the cumulus,
the maximum amplitude of the postsynaptic response in the medial cumulus (mC)
was significantly larger than that of the lateral cumulus (lC). Asterisks show
that the maximum amplitudes of these responses are significantly different
(P<0.05, one-way repeated-measures ANOVA, N=8). The peak
amplitudes of the GABAergic inhibitory responses were not significantly
different among these MGC sub-regions. (B) When the LN was stimulated,
postsynaptic responses in the lT and the lC were detected, but not in other
MGC sub-regions. In the toroid, the maximum amplitude of the excitatory
postsynaptic response of the lT was significantly larger than that of the cT
(P<0.05, one-way repeated-measures ANOVA, N=7). In the
cumulus, the maximum amplitude of the postsynaptic response of the lC was
significantly larger than that of the mC (P<0.05, one-way
repeated-measures ANOVA, N=7). The maximum amplitudes of the
GABAergic responses were not significantly different among these MGC
sub-regions except mT. N.D., not detected.
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