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. Author manuscript; available in PMC: 2008 Apr 30.
Published in final edited form as: Neurobiol Learn Mem. 2007 Feb 5;87(4):522–535. doi: 10.1016/j.nlm.2006.12.009

Figure 7.

Figure 7

Examination of the influence of age, Ca2+/Mg2+ ratio, and stimulation pattern on induction of LTD examined in 106 slices. The bars represent the mean (+SEM) for the slope of the population EPSP relative to baseline in the test pathways 30 min following LTD-induction. For each panel the means are collapsed across the two other factors. LTD of the synaptic response was greater when examined in (A) aged animals relative to young, (B) an elevated Ca2+/Mg2+ ratio relative to the standard Ca2+/Mg2+ ratio, and (C) following PP-LFS relative of LFS. The asterisk indicates a significant difference (p < 0.005) determined by Scheffe post hoc comparisons. The numbers above each bar represent the number of slices that contributed to the mean.