Full text
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| Author(s): |
Francisco José de Lima
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | Ribeirão Preto. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (PCARP/BC) |
| Defense date: | 1998-12-17 |
| Examining board members: |
Jose Aparecido da Silva;
José Fernando Colafêmina;
Cesar Alexis Galera
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| Advisor: | Jose Aparecido da Silva |
| Abstract | |
The present work aimed to investigate the existence of visual mediation in the recognition of raised-line drawings, by comparing congenitally blind people, adventitiously blind individuals and blindfolded sighted subjects. It has been demonstrated that congenitally and adventitiously blind individuals are able to produce raised-line pictures and benefit from practicing with flat configurations. However, it is still uncertain whether congenitally blind people can understand raised-line drawings given their lack of visual experience. We investigated whether totally, congenitally blind people, can make sense of raised-line pictures only by haptically examining them. A raised-line drawing recognition task and a raised-line drawing production experiment were carried out along with a 3D-object recognition task for comparison. Haptic examination generated highly accurate recognition of 3D confígurations demonstrating that the performances between groups are alike as evidenced by lack of significant differences. Some congenitally blind people produced similar drawings as those made by adventitiously blind and blindfolded sighted subjects, varying according to the depicted object and personal skills. No significant differences were found among the groups in the raised-line drawing recognition task, suggesting that visual mediation is not necessary for this task, though it can help in the recognition of raised-line pictures. Totally, congenitally blind individuals proved to be capable of haptically recognizing 3D objects, producing two dimensional configurations and making sense of two dimensional pictures, even without visual experience and formal practice in drawing, seeing, or touching raised-line pictures. (AU) | |