Figure 5.

Normal NR2A expression is required for performance on a conditional T-maze task, but only if there is a discontiguity between the conditional cue and the place at which the reward is delivered. A, Contiguous task: mean percentage correct responses ± SEM during 14 blocks (10 trials per block) of training on the version of the conditional T-maze task in which the floor inserts are present throughout the entire maze for wild-type (○) and NR2A^−/− (■) mice. B, Discontiguous task: mean percentage correct responses ± SEM during 24 blocks (10 trials per block) of training on the version of the conditional T-maze task in which the floor inserts indicating in which goal arm the milk reward is located are limited to the start arm only.