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A direct intracranial record of emotions evoked by subliminal words

机译：颅下直觉引起的情绪直接颅内记录

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摘要

A classical but still open issue in cognitive psychology concerns the depth of subliminal processing. Can the meaning of undetected words be accessed in the absence of consciousness? Subliminal priming experiments in normal subjects have revealed only small effects whose interpretation remains controversial. Here, we provide a direct demonstration of semantic access for unseen masked words. In three epileptic patients with intracranial electrodes, we recorded brain potentials from the amygdala, a neural structure that responds to fearful or threatening stimuli presented in various modalities, including written words. We show that the subliminal presentation of emotional words modulates the activity of the amygdala at a long latency ( > 800 ms). Our result indicates that subliminal words can trigger long-lasting cerebral processes, including semantic access to emotional valence.
机译：认知心理学中一个经典但仍未解决的问题涉及潜意识加工的深度。可以在没有意识的情况下访问未检测到的单词的含义吗？正常受试者的潜意识启动实验仅揭示了其解释尚存争议的微小影响。在这里，我们直接显示了看不见的被屏蔽单词的语义访问。在三名颅内电极癫痫患者中，我们记录了杏仁核的脑电势，杏仁核是一种神经结构，对包括书面在内的各种形式的恐惧或威胁性刺激作出反应。我们表明情感词的潜意识呈现调节了杏仁核的活动在很长的延迟（> 800毫秒）。我们的结果表明，潜意识单词可以触发持久的大脑过程，包括语义上的情感价。

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