Feven-Parsons Isabel M, Goslin Jeremy
School of Psychology, University of Plymouth, Plymouth, Devon PL4 8AA, UK.
School of Psychology, University of Plymouth, Plymouth, Devon PL4 8AA, UK.
Brain Lang. 2018 Sep;184:20-31. doi: 10.1016/j.bandl.2018.06.002. Epub 2018 Jun 20.
If our central representation of an object is defined through embodied experience, we might expect access to action affordances to be privileged over more abstract concepts. We used event-related potentials to examine the relative time course of access to affordances. Written object names were primed with the name of an object sharing the same affordance as the target (e.g. precision-grip: "grape" primed by "tweezers") or the same taxonomic category (e.g. fruit: "grape" primed by "apple"). N200 latencies, related to go/nogo semantic category decisions on target words, revealed no difference in facilitation provided by affordance and semantic priming. However, separate analyses of ERPs for go and nogo trials showed that semantic priming led to earlier activation during go trials (around 430 ms), and affordance priming led to earlier activation during nogo trials (around 180 ms). While affordances appear to be peripheral to the conceptual representation of objects, they do lead to direct motor preparation.
如果我们对一个物体的核心表征是通过具身经验来定义的，那么我们可能会预期，相比于更抽象的概念，获取动作可供性具有优先性。我们使用事件相关电位来研究获取可供性的相对时间进程。书面物体名称由与目标物体具有相同可供性的物体名称（例如精确抓握：“葡萄”由“镊子”启动）或相同分类类别的物体名称（例如水果：“葡萄”由“苹果”启动）进行启动。与对目标词进行去/不去语义类别决策相关的N200潜伏期显示，可供性启动和语义启动所提供的促进作用没有差异。然而，对去和不去试验的事件相关电位进行单独分析表明，语义启动在去试验期间导致更早的激活（约430毫秒），而可供性启动在不去试验期间导致更早的激活（约180毫秒）。虽然可供性似乎处于物体概念表征的外围，但它们确实会导致直接的运动准备。
