Fig. 6: Neuronal selectivity remained remarkably constant across conditions and menus.
a The evolution of neuronal choice selectivity as determined by receiver-operating characteristic analysis when comparing choice-in activities of each value ranking with the highest available choice-out activity. All shaded regions represent SEM. b The average predictive indexes during the late fixation period from (a). For conditions from left to right n = 49, 48, 5, 48, 38, and 33. n represents the number of blocks with at least five cases for the condition. Data are presented for each value ranking when there were three values, two values, or one value ranking targets remaining in the array. For each value ranking, two-sided, one-way t test, from left to right, P = 4.8 × 10−8, 0.040, 0.54, 7.2 × 10−8, 0.0053, and 3.6 × 10−5, respectively. N-way ANOVA tests, factor of value, P = 0.65, factor of menu, P = 0.36. Source data are provided as a Source data file. For the boxplots, on each box, the central mark is the median, the edges of the box are the 25th and 75th percentiles, and the whiskers extend to the most extreme data points that the algorithm considers not to be outliers. Outliers are data points that are larger than Q3 + 1.5 × (Q3 − Q1) or smaller than Q1 − 1.5 × (Q3 − Q1), where Q1 and Q3 are the 25th and 75th percentiles, respectively (n.s. nonsignificant, *P < 0.05, **P < 0.01, ***P < 0.001).
