Institute of Behavioural Sciences, Division of Cognitive and Neuropsychology, University of Helsinki, Siltavuorenpenger 1 A, PL 9, 00014 Helsinki, Finland.
Brain Cogn. 2011 Dec;77(3):382-90. doi: 10.1016/j.bandc.2011.09.007. Epub 2011 Oct 21.
Manual responses can be primed by viewing an image of a hand. The left-right identity of the viewed hand reflexively facilitates responses of the hand that corresponds to the identity. Previous research also suggests that when the response activation is triggered by an arrow, which is backward-masked and presented briefly, the activation manifests itself in the negative priming effect. The present study showed that response activation, which is produced by an identity of a briefly presented image of a hand, can be similarly associated with a negative priming effect. However, in contrast to the previously reported negative priming effects, the hand stimuli produced negative priming even when the hand was not backward-masked and did not contain task-relevant information. The study supports the view that the automatic inhibition of motor activation triggered by briefly viewed objects is a general and basic functional principle in exogenous motor control processes.
手动反应可以通过观看手的图像来预先激活。所观看手的左右身份会自动促进与该身份相对应的手的反应。先前的研究还表明，当响应激活由一个短暂呈现的、被反向掩蔽的箭头触发时，激活会表现为负启动效应。本研究表明，由短暂呈现的手的图像的身份产生的响应激活，可以与负启动效应类似地相关联。然而，与之前报道的负启动效应相反，即使在手没有被反向掩蔽且不包含任务相关信息的情况下，手刺激也会产生负启动效应。该研究支持这样一种观点，即由短暂观看的物体触发的运动激活的自动抑制是外源性运动控制过程中的一个普遍的基本功能原则。
