The role played by tool-use and tool-length on the Plastic Elongation of peri-hand space: a single case study
| Autor: | Elisabetta Làdavas, Alessandro Farnè, Silvia Bonifazi |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
genetic structures
business.industry Cognitive Neuroscience Rake Experimental and Cognitive Psychology Pattern recognition Neurophysiology Single-subject design Space (mathematics) medicine.disease Neuropsychology and Physiological Psychology Arts and Humanities (miscellaneous) Extinction (neurology) Developmental and Educational Psychology medicine Artificial intelligence Elongation Spatial extent Representation (mathematics) Psychology business Neuroscience |
| Zdroj: | Cognitive Neuropsychology. 22:408-418 |
| ISSN: | 1464-0627 0264-3294 |
| DOI: | 10.1080/02643290442000112 |
| Popis: | Consistent with neurophysiological findings showing expansion of the visual RF of visuo-tactile neurons along the rake used by monkeys to retrieve out-of-hand-reach objects (Iriki, Tanaka, & Iwamura, 1996), we have previously shown that also in humans the use of a tool can increase the spatial extent of the representation of peri-hand space, as revealed by an increase in the severity of cross-modal extinction after tool use (Farne & Ladavas, 2000). Here we further explored the characteristics of such a transient elongation of the multisensory peri-hand space representation in a patient with visual-tactile extinction. By investigating the variation of cross-modal extinction following different types of tool-related experience, we found that passive exposure to the tool is not sufficient per se to induce peri-hand space extension, which instead requires that the tool is used. This increase of peri-hand extension might be related to the physical length of the tool. |
| Databáze: | OpenAIRE |
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