| Abstract: | Three experiments involving confrontation naming and nonverbal classification tasks establish that impaired naming is relatively common in elderly cardiac patients, but that it can be distinguished functionally from aphasic dysnoia. The results suggest that while the aphasics' failures often reflected failure to retrieve the verbal labels of objects which were appropriately perceived, naming failures in cardiac patients were frequently precipitated by failure to éstablish the semantic identity of the target and were more sentitive to reductions in visual quality of the target picture. |
