LEXICAL RETRIEVAL FOR PRODUCTION

研究了正常受试者和失语症受试者的工作提取过程 在指导模型的框架内，使用图片命名作为 实验范式。最初的研究使用的是词汇决定 探索音系学证据的最早时间点的技术 并且可以在感知到图片之后检测到语义激活 对象。我们的模型预测，语音活动与 或者甚至先于语义关联。姓名检索的自动性 是在非命名情况下探索的。各种操作所需的时间 图片处理级别，从身份检测到名称匹配 将通过反应时间技术进行检查，以测试我们的预测 失语症受试者正常组和亚组中的模型。响应延迟 要比较与指定类型的失语症命名错误相关的错误 根据我们的模型得出的预测。 对以单词开头的门控技术的修改将用于 失语症受试者与正常受试者词重音的交互作用 以及作为单词识别和单词识别线索的门控段的位置- 取回。在我们之前的工作中，我们发现失语症患者接近正常 从听词首看完词能力 音系学。在这项研究中，我们检验了一种假设，即压力 音节，无论位置如何，都可以作为 激活词音学。

The process of work retrieval is studied in normal and aphasic subjects within the framework of a guiding model, using picture naming as the experimental paradigm. The initial studies use a lexical decision technique to probe for the earliest point at which evidence of phonological and semantic activation can be detected after perception of a pictured object. Our model predicts that phonological activity is concurrent with or even precedes semantic associations. The automaticity of name retrieval is explored in a non-naming situation. The time required for various levels of picture processing, from identity detection through name matching is to be examined by reaction time techniques to test predictions of our model in normals and subgroups of aphasic subjects. The response latencies associated with specified types of aphasic naming errors are to be compared with predictions derived from our model. A modification of the word-onset gating technique is to be used with aphasic and normal subjects to examine the interaction between word-stress and the location of the gated segment as cues to word recognition and word- retrieval. In our preceding work we found that aphasics approach normal competence in completing words on the basis of hearing word onset phonology. In this study we examine the hypothesis that the stressed syllable, regardless of position may serve as the starting point in the activation of word-phonology.