| Автор | Humphreys, Glyn W. |
| Автор | Lamote, Christian |
| Автор | Lloyd-jones, Toby J. |
| Дата выпуска | 1995 |
| dc.description | AbstractWe present a computational model of the processes involved in retrieving stored semantic and name information from objects, using a simple interactive activation and competition architecture. We simulate evidence showing a cross-over in normal reaction times to make semantic classification and identification responses to objects from categories with either structurally similar or structurally dissimilar exemplars, and that identification times to objects from these two different classes correlate differentially with measures of the structural similarity of objects within the category and the frequency of the object's name. Structural similarity exerts a negative effect on object decision as well as naming, though this effect is larger on naming. Also, on naming, structural similarity interacts with the effects of name frequency, captured in the model by varying the weight on connections from semantic to name units; frequency effects are larger with structurally dissimilar items. In addition, (1) the range of potential errors for objects from these two classes, when responses are elicited before activation reached a stable state, differ–a wider range of errors occur to objects from categories with structurally similar exemplars; and (2) simulated lesions to different locations within the model produce selective impairments to identification but not to semantic classification responses to objects from categories with structurally similar exemplars. We discuss the results in relation to data on visual object processing in both normality and pathology. |
| Формат | application.pdf |
| Издатель | Taylor & Francis Group |
| Копирайт | Copyright Taylor and Francis Group, LLC |
| Название | An interactive activation approach to object processing: Effects of structural similarity, name frequency, and task in normality and pathology |
| Тип | research-article |
| DOI | 10.1080/09658219508253164 |
| Electronic ISSN | 1464-0686 |
| Print ISSN | 0965-8211 |
| Журнал | Memory |
| Том | 3 |
| Первая страница | 535 |
| Последняя страница | 586 |
| Аффилиация | Humphreys, Glyn W.; University of Birmingham |
| Аффилиация | Lamote, Christian; University of Leuven |
| Аффилиация | Lloyd-jones, Toby J.; University of Birmingham |
| Выпуск | 3-4 |
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