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. Author manuscript; available in PMC: 2013 Apr 2.
Published in final edited form as: Nat Neurosci. 2012 Sep 9;15(10):1430–1438. doi: 10.1038/nn.3208

Figure 2. Short-term hilar representations of multiple PP stimuli.

Figure 2

a, Triple hilar cell recording configuration. b, Stimulation at different sites evokes distinct synaptic barrages in hilar networks. Summary plot of mean EPSP frequency during initial 4 s of barrages following PP stimulation in one experiment. Black dots represent 14 consecutive single trials, crosses represent centroids of each trial type (stimulus A, B, etc). Shaded zones represent bounding ellipsoids used to illustrate variance associated with repeated responses to the same stimulus (60% confidence intervals). c, Histogram of experiments with 2, 3 and 4 statistically separable responses over 12 experiments. d, Plot of the number of statistically significant (P < 0.05) planes obtained by LDA in the 9 triple recording experiments (black bars) and following shuffling stimulus identity (grey bars). Results are presented from LDA computed on data from all three simultaneous recordings (right set of bars; n = 9) and when only one (n=27) and two neurons (n=27) are considered. ** P < 0.01. e, Plot of probabilities associated with the overlap coefficient (OVL) for the same 12 experiments. Dashed line indicates statistically significant OVL range (P < 0.05). See text and Supplemental Fig. 3 for details.