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. 2007 Sep 12;27(37):10015–10023. doi: 10.1523/JNEUROSCI.1158-07.2007

Figure 4.

Figure 4.

Relating physicochemical space to perceptual space. A, The correlation between the first to fourth (descending in the figure) perceptual PC and each of the first seven physicochemical PCs for the 144 odorants. Error bars reflect the SE from 1000 bootstrap replicates. The best correlation was between the first PC of perception and the first PC of physicochemical space. This correlation was significantly larger than all other correlations. B, For the 144 odorants, the correlation between their actual first perceptual PC value and the value our model predicted from their physicochemical data.