ARC Centre of Excellence in Cognition and its Disorders, Department of Cognitive Science, Macquarie University, Australia.
Conscious Cogn. 2013 Dec;22(4):1206-13. doi: 10.1016/j.concog.2013.07.009. Epub 2013 Sep 8.
Dehaene et al. (2003) showed an absence of conscious, but not masked, conflict effects when patients with schizophrenia performed a number-categorisation priming task. We aimed to replicate these influential results using a different word-categorisation priming task. Counter to Dehaene et al.'s findings, 21 patients and 20 healthy controls showed similar congruence effects for both masked and visible primes. Within patients, a reduced congruence effect for visible primes associated with longer duration of illness and more severe behavioural disorganisation. Patients, unlike controls, were no slower to respond to targets that followed visible compared to masked primes. Conscious conflict effects on priming tasks are not universally reduced in schizophrenia but may associate with chronicity and behavioural disorganisation. That patients were no slower when the preceding primes were clearly visible accords with evidence elsewhere that information processing in schizophrenia is driven more by immediate conscious experience and constrained less by prior events.
德阿恩等人（2003 年）在进行数字分类启动任务时发现，精神分裂症患者表现出无意识但无掩蔽的冲突效应缺失。我们旨在使用不同的单词分类启动任务复制这些有影响力的结果。与德阿恩等人的研究结果相反，21 名患者和 20 名健康对照组在掩蔽和可见启动时都表现出相似的一致效应。在患者中，可见启动的一致性效应降低与疾病持续时间延长和行为紊乱更严重有关。与对照组不同的是，患者对紧随可见启动的目标的反应并不比掩蔽启动慢。在精神分裂症中，启动任务上的意识冲突效应并非普遍降低，但可能与慢性和行为紊乱有关。当先前的启动明显可见时，患者的反应速度并没有变慢，这与其他地方的证据一致，即精神分裂症患者的信息处理更多地受即时意识体验的驱动，受先前事件的限制较小。
