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. 1997 Dec 1;17(23):9285–9297. doi: 10.1523/JNEUROSCI.17-23-09285.1997

Fig. 2.

Fig. 2.

A, Mean number of errors (±SEM) to reach criterion on a visual discrimination that requires an IDS (third discrimination of the series of three that were presented postoperatively), an EDS, and a reversal, EDSR, in monkeys that received excitotoxic lesions of either the lateral (LAT) (n = 3) (pale hatched bars) or orbital prefrontal cortex (ORB) (n = 3) (dark hatched bars) or a sham operation (n = 3) (open bars). B, Mean number of errors (±SEM) to reach criterion on subsequent visual discriminations that require an intradimensional shift (IDS), an extradimensional shift (EDS), and a reversal (REV). * Lateral prefrontal lesioned group differed significantly from controls and orbital prefrontal lesioned group; p < 0.001. ** Orbital prefrontal lesioned group differed significantly from controls and lateral prefrontal lesioned group; p < 0.001.