Table 1.

Population summary (N=557 cells). Results obtained pooling trials with the three juice pairs. The first column indicates the number of cells modulated by the offer type in each time window (ANOVA, p<0.001). Of the 557 cells in our data set, 351 (63%) passed the ANOVA criterion in at least one time window. The three columns on the right indicate the number of responses classified as encoding each of the three variables. Since OFC responses are typically menu invariant, this classification is based on simple regressions of neuronal responses onto different variables. A variable “explains” a response if the slope of the regression differs significantly from zero (p<0.05); responses explained by more than one variable are assigned to the variable with the highest R². Responses that pass the ANOVA criterion but are not explained by any variable (48/1,019=5%, unclassified) do not appear in the three columns on the right.

		offer value	chosen value	taste
1	pre-offer	0	0	1
208	post-offer	75	80	51
163	late delay	43	47	60
103	pre-go	35	32	29
71	RT	18	27	17
239	pre-juice	46	58	127
234	post-juice	51	61	113
1,019	total
351	at least one