Fig. 3: Condensed milk test and 5-CSRTT performance at baseline conditions.

Preference to the condense milk reward over the water was tested over the span of days 3 to 6 from the condense milk test (a). Over the course of these four days the preference for the reward increased significantly (p < 0.001) as expected for the purposes of the 5-CSRTT, and this tendency was not affected by genotype (PWS-cr=21, WT = 22). Performance at baseline conditions of the 5-CSRTT also showed no difference between PWS-cr mice (n = 20) and their wild-type littermates (n = 23) in accuracy of performance (b), percentage omissions (c), and a number of premature responses (d).