Navarrete Eduardo, Del Prato Paul, Mahon Bradford Z
Dipartimento di Psicologia dello Sviluppo e della Socializzazione, University of Padova Padova, Italy.
Front Psychol. 2012 Feb 21;3:38. doi: 10.3389/fpsyg.2012.00038. eCollection 2012.
The cyclic naming paradigm, in which participants are slower to name pictures blocked by semantic category than pictures in an unrelated context, offers a window into the dynamics of the mapping between lexical concepts and words. Here we provide evidence for the view that incremental adjustments to the connection weights from semantics to lexical items provides an elegant explanation of a range of observations within the cyclic naming paradigm. Our principal experimental manipulation is to vary the within-category semantic distance among items that must be named together in a block. In the first set of experiments we find that naming latencies are, if anything, faster for within-category semantically close blocks compared to within-category semantically far blocks, for the first presentation of items. This effect can be explained by the fact that there will be more spreading activation, and thus greater priming at the lexical level, for within-category semantically close blocks than within-category semantically far blocks. We test this explanation by inserting intervening filler items (geometric shapes), and show as predicted, that while intervening unrelated trials abolish short-lived semantic priming effects, the long-lag interference effect that is characteristic of this paradigm is unaffected. These data place new constraints on explanations of the cyclic naming effect, and related phenomena, within a model of language production.
循环命名范式中，参与者对按语义类别分组的图片命名比对处于无关语境中的图片命名要慢，这为洞察词汇概念与单词之间映射的动态过程提供了一个窗口。在此，我们为以下观点提供证据：对从语义到词汇项的连接权重进行增量调整，为循环命名范式中的一系列观察结果提供了一个优雅的解释。我们主要的实验操作是改变在一个组块中必须一起命名的项目之间的类别内语义距离。在第一组实验中，我们发现，对于项目的首次呈现，与类别内语义距离远的组块相比，类别内语义距离近的组块的命名潜伏期（如果有差异的话）反而更快。这一效应可以用以下事实来解释：与类别内语义距离远的组块相比，类别内语义距离近的组块在词汇层面会有更多的扩散激活，从而有更强的启动效应。我们通过插入中间填充项目（几何形状）来检验这一解释，并如预期所示，表明虽然插入无关试验消除了短暂的语义启动效应，但该范式特有的长时滞后干扰效应不受影响。这些数据对语言产生模型中循环命名效应及相关现象的解释施加了新的限制。
