Department of Experimental Psychology, Faculty of Psychology and Educational Sciences, Ghent University, Henri Dunantlaan 2, 9000 Ghent, Belgium.
Soc Cogn Affect Neurosci. 2012 Apr;7(4):431-5. doi: 10.1093/scan/nsr030. Epub 2011 May 23.
The present study used functional magnetic resonance imaging to investigate brain processes associated with the inhibition of socially undesirable speech. It is tested whether the inhibition of undesirable speech is solely related to brain areas associated with classical stop signal tasks or rather also involves brain areas involved in endogenous self-control. During the experiment, subjects had to do a SLIP task, which was designed to elicit taboo or neutral spoonerisms. Here we show that the internal inhibition of taboo words activates the right inferior frontal gyrus, an area that has previously been associated with externally triggered inhibition. This finding strongly suggests that external social rules become internalized and act as a stop-signal.
本研究使用功能磁共振成像来研究与抑制社会上不可接受的言论相关的大脑过程。研究测试了不可接受的言论的抑制是否仅与经典停止信号任务相关的大脑区域有关，或者还涉及到与内源性自我控制相关的大脑区域。在实验中，受试者必须完成 SLIP 任务，该任务旨在引发禁忌或中性的移行语。我们在这里表明，禁忌词的内部抑制会激活右侧下额回，该区域先前与外部触发的抑制有关。这一发现强烈表明，外部社会规则被内化并充当停止信号。
