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Acquisition of successive odor discrimination problems by ABL lesioned (black bars) and control (white bars) rats. Rate of acquisition of each odor discrimination problem (D1, D2, D3, D4) is represented as the trials it took for each rat to meet a criterion of 18 correct responses in a moving block of 20 trials. There was no effect of lesion on acquisition of any of the individual odor discriminations or on the improvement observed across successive problems.
