Action and Object Processing in Aphasia: From Nouns and Verbs to the Effect of Manipulability
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| Title: | Action and Object Processing in Aphasia: From Nouns and Verbs to the Effect of Manipulability |
|---|---|
| Language: | English |
| Authors: | Arevalo, A., Perani, D., Cappa, S. F. |
| Source: | Brain and Language. Jan 2007 100(1):79-94. |
| Availability: | Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com |
| Peer Reviewed: | Y |
| Page Count: | 16 |
| Publication Date: | 2007 |
| Document Type: | Journal Articles Reports - Research |
| Descriptors: | Nouns, Verbs, Aphasia, Patients, Control Groups, Language Processing, Word Recognition, Pictorial Stimuli, Comparative Analysis, Association (Psychology) |
| DOI: | 10.1016/j.bandl.2006.06.012 |
| ISSN: | 0093-934X |
| Abstract: | The processing of words and pictures representing actions and objects was tested in 21 aphasic patients and 20 healthy controls across three word production tasks: picture-naming (PN), single word reading (WR) and word repetition (WRP). Analysis (1) targeted task and lexical category (noun-verb), revealing worse performance on PN and verb items for both patients and control participants. For Analysis (2) we used data collected in a concurrent gesture norming study to re-categorize the noun-verb items along hand imagery parameters (i.e., objects that can/cannot be manipulated and actions which do/do not involve fine hand movements). Here, patients displayed relative difficulty with the "manipulable" items, while controls displayed the opposite pattern. Therefore, whereas the noun-verb distinction resulted simply in lower verb accuracy across groups, the "manipulability" distinction revealed a "double-dissociation" between patients and control participants. These results carry implications for theories of embodiment, lexico-semantic dissociations, and the organization of meaning in the brain. |
| Abstractor: | Author |
| Entry Date: | 2006 |
| Accession Number: | EJ746746 |
| Database: | ERIC |
| Abstract: | The processing of words and pictures representing actions and objects was tested in 21 aphasic patients and 20 healthy controls across three word production tasks: picture-naming (PN), single word reading (WR) and word repetition (WRP). Analysis (1) targeted task and lexical category (noun-verb), revealing worse performance on PN and verb items for both patients and control participants. For Analysis (2) we used data collected in a concurrent gesture norming study to re-categorize the noun-verb items along hand imagery parameters (i.e., objects that can/cannot be manipulated and actions which do/do not involve fine hand movements). Here, patients displayed relative difficulty with the "manipulable" items, while controls displayed the opposite pattern. Therefore, whereas the noun-verb distinction resulted simply in lower verb accuracy across groups, the "manipulability" distinction revealed a "double-dissociation" between patients and control participants. These results carry implications for theories of embodiment, lexico-semantic dissociations, and the organization of meaning in the brain. |
|---|---|
| ISSN: | 0093-934X |
| DOI: | 10.1016/j.bandl.2006.06.012 |
