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Attentional set-shift task. In this example, (A) a rat is trained to go to black arms in Set 1. Once 8 consecutive trials of correct responses is reached, the rat is removed and is tested in Set 2 the following day. B, In Set 2, the rat is tested with an extradimensional shift in the rewarding cue, such that rough arms are now baited with a reward pellet. Green arrows indicate correct responses. Red arrows indicate incorrect responses.
