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Can human autonomic classical conditioning occur without contingency awareness? The critical importance of the trial sequence

机译:在没有应变意识的情况下,人类自主经典条件会发生吗?试用顺序的至关重要性

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Most evidence suggests that awareness of the CS-US contingency is necessary for human autonomic conditioning. However, Schultz and Helmstetter (2010) reported unaware skin conductance conditioning using difficult-to-discriminate visual CSs. We sought to replicate these findings with procedures nearly identical to Schultz and Helmstetter among 66 participants. Results replicated the findings of significantly greater autonomic responding to CS+ than CS-; however, participants also demonstrated greater expectancy of shock to CS+ than CS- despite being classified as unaware. The differential expectancy and conditioning occurred only on trials that followed a CS+/CS- alternating sequence. On non-alternating trials, there was significantly higher expectancy and skin conductance responding to CS- compared to CS+. These results indicate that what initially appeared to be unaware differential conditioning was likely due to differential expectancy arising from a predictable trial sequence. These results underscore the critical importance of controlling for trial sequence effects in the study of learning.
机译:大多数证据表明,对CS-US意外事件的认识对于人类自主调节至关重要。但是,舒尔茨和赫尔姆斯特特(Schultz and Helmstetter,2010年)报告说,使用难以区分的视觉CS并没有意识到皮肤电导调节。我们试图通过66名参与者中几乎与Schultz和Helmstetter相同的程序来复制这些发现。结果重复了对CS +的自主反应明显高于CS-的发现。然而,尽管被归类为不知道,参与者对CS +的电击期望也比CS-高。预期和条件差异仅发生在遵循CS + / CS-交替序列的试验中。在非替代性试验中,与CS +相比,对CS-的预期和皮肤电导明显更高。这些结果表明,最初似乎没有意识到的差异调节可能是由于可预测的试验序列引起的差异预期。这些结果强调了在学习研究中控制试验序列效应的至关重要性。

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