Implicitly priming the social brain: failure to find neural effects.

Implicitly priming the social brain: failure to find neural effects.
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DOI:
10.1371/journal.pone.0056596
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Heatherton TF
Heatherton TF
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Powers KE;Heatherton TF

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人类对社会关系有着基本的需求。来自社会群体的拒绝尤其有害,这使得发现社会关系威胁并以适应性方式做出反应的能力变得至关重要。事实上,之前的研究已经表明,经历社交拒绝会以各种社交关联和回避的方式改变后续社交线索的处理。因为社会感知和认知是自发和自动发生的,所以检测到对社会关系的威胁可能在没有意识到或没有控制的情况下发生。在这里,我们通过检测内隐启动如何影响神经对社会刺激的反应来研究社会威胁检测的自动性。然而,尽管使用了成熟的内隐启动范式和大样本量,我们没有发现任何证据表明内隐启动导致了神经水平的变化。这种隐含的质数影响行为已经被反复地证明,并跨越了各种领域,我们的目标不是质疑这些影响。相反,我们提供本研究作为警示证据,表明这样的范例可能不适合在功能磁共振成像环境中进行扫描。
Humans have a fundamental need for social relationships. Rejection from social groups is especially detrimental, rendering the ability to detect threats to social relationships and respond in adaptive ways critical. Indeed, previous research has shown that experiencing social rejection alters the processing of subsequent social cues in a variety of socially affiliative and avoidant ways. Because social perception and cognition occurs spontaneously and automatically, detecting threats to social relationships may occur without conscious awareness or control. Here, we investigated the automaticity of social threat detection by examining how implicit primes affect neural responses to social stimuli. However, despite using a well-established implicit priming paradigm and large sample size, we failed to find any evidence that implicit primes induced changes at the neural level. That implicit primes influence behavior has been demonstrated repeatedly and across a variety of domains, and our goal is not to question these effects. Rather, we offer the present study as cautionary evidence that such a paradigm may not be amenable to scanning in an fMRI environment.
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