Figure 2: Behavioural performance.
From: Abstract rule neurons in the endbrain support intelligent behaviour in corvid songbirds

(a) Behavioural performance (percent correct) for bird P and bird D for the two different rules and the four different rule cues. Error bars show s.e.m. over all recording sessions. Dashed lines indicate chance level. (b) Behavioural performance in a transfer session consisting of 420 unique trials, compared against baseline performance measured in three sessions for each bird. Error bars show s.e.m., dashed lines indicate chance level.