Figure 4. An on-line statistical classifier accounts for choice updating.

(a) Schematic of a classifier using Support Vector Machine for learning to categorize odor samples. The dashed line shows one possible hyperplane for classification and shaded area around the dashed line indicates the margin. Orange arrow indicates the distance between one data point and the classification hyperplane, that is the margin for that data point, given the hyperplane. Each circle is one odor sample in one trial. (b) Average estimates of the margins of the classifier. (c) The size of shift in the classification as a function of previous and current stimulus. (d) Choice updating as a function previous odor separated for current easy and hard choices.