Fig. 8.

The first-item latency effect (top) and missing-items latency effect (bottom) generated preoperatively and after the first (unilateral) and second (bilateral) ST cortex lesions. In the top, the response latency is to the first item of a test pair as a function of whether the first item is stimulus A (pairs AB, AC, and AD), B (pairs BC and BD), or C (pair CD). In the bottom, the response latency is to the second item of a test pair as a function of whether the number of missing items is 0 (pairs AB, BC, and CD), 1 (pairs AC and BD), or 2 (pair AD). The figures are collapsed across all three monkeys and across the two preoperative, two unilateral, and two bilateral test sessions.