Cognitive Neuroscience and Neuropsychology

نویسندگان

  • Peter F. Dominey
  • Nicolas Georgieff
چکیده

structure. All three groups displayed negative transfer to random material in block 7, and positive transfer to block 8, which is constructed as blocks 1–6. The crucial test of transfer involves new material with different surface structure but the same abstract structure in blocks 9 and 10. The schizophrenic group showed no evidence of use of the abstract information in blocks 9 and 10, as was also the case for the implicit group. While these two groups displayed improvement in these two blocks, the performance did not approach that seen in block 6 and, on the contrary, the performance in blocks 9 and 10 did not appear to differ greatly from that for random material in block 7. In contrast, the explicit group regained the reduced RTs for predictable elements in block 9 and approached its best performance (seen in block 6) for these elements in block 10, while at the same time improving also for the unpredictable elements. The observations about learning in blocks 1–6 that resulted in negative transfer to the random block 7 were confirmed in the schizophrenic group by a twofactor (block: 6–8) ANOVA on RTs for unpredictable elements. The significant block effect (F(2,51) = 6.69, p < 0.005) reflects the increased RT for Sequence learning in schizophrenia

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تاریخ انتشار 1997