Ease of processing constrains the activation flow in the conceptual-lexical system during speech planning.
Ease of processing constrains the activation flow in the conceptual-lexical system during speech planning.
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DOI：
10.1037/a0022330
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发表时间：
2011-05
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影响因子：
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通讯作者：
A. Mädebach;J. Jescheniak;F. Oppermann;H. Schriefers
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文献类型：
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作者：
A. Mädebach;J. Jescheniak;F. Oppermann;H. Schriefers
在 3 个图词干扰实验中，说话者在存在不相关的未命名上下文对象的情况下命名目标对象。与上下文对象的名称在语音上相关或无关的干扰词被用来确定上下文对象是否已在语音上被激活。所有对象都有高频名称，并且这些对象的处理难易程度是通过视觉降级技术来控制的。在实验 1 中，两个物体均未降解；在实验2中，两个物体都被降解；在实验3中，目标对象或上下文对象被降级。当两个对象都未降级时，与上下文对象在语音上相关的干扰词会干扰命名响应，表明上下文对象已在语音上协同激活。当两个对象都降级、仅上下文对象降级以及仅目标对象降级时，效果消失。这些数据表明，可用处理资源的数量限制了概念词汇系统中激活的前向级联。如果上下文对象很容易检索并且优先目标处理留下足够的资源，则它们很可能在语音上被激活。
In 3 picture-word interference experiments, speakers named a target object in the presence of an unrelated not-to-be-named context object. Distractor words, which were phonologically related or unrelated to the context object's name, were used to determine whether the context object had become phonologically activated. All objects had high frequency names, and the ease of processing of these objects was manipulated by a visual degradation technique. In Experiment 1, both objects were nondegraded; in Experiment 2, both objects were degraded; and in Experiment 3, either the target object or the context object was degraded. Distractor words, which were phonologically related to the context objects, interfered with the naming response when both objects were nondegraded, indicating that the context objects had become phonologically coactivated. The effect vanished when both objects were degraded, when only the context object was degraded, and when only the target object was degraded. These data demonstrate that the amount of available processing resources constrains the forward cascading of activation in the conceptual-lexical system. Context objects are likely to become phonologically coactivated if they are easily retrieved and if prioritized target processing leaves sufficient resources.