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. 2013 Nov 21;7:170. doi: 10.3389/fncom.2013.00170

Figure 3.

Figure 3

Best fit of CD model and Triplet model to the data in HC (A–D) and VC23 (E–H). In HC, CD model and Triplet model capture the main feature of the results, where pre-post-pre triplets do not change the synapse, while post-pre-post triplets show strong LTP. The +5, −15 triplet (B, right) however, can not be reproduced by both models, leading to a relatively large error. In VC23, adaptation is evident in (G). Adding more spikes in front of a pre-post pair decreases LTP, contrary to expectation. The Triplet model has no mechanism which can deal with that.