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| Author(s): |
Hamilton Haddad Junior
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Ciências Biomédicas (ICB/SDI) |
| Defense date: | 2008-11-10 |
| Examining board members: |
Marcus Vinicius Chrysostomo Baldo;
Luiz Renato Rodrigues Carreiro;
Luiz Eduardo Ribeiro do Valle;
Dora Selma Fix Ventura;
Gilberto Fernando Xavier
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| Advisor: | Marcus Vinicius Chrysostomo Baldo |
| Abstract | |
Organisms are able to distinguish between sensory stimuli from the environment and sensory stimuli they cause. This process depends on neural and cognitive mechanisms that link actions to perceptions generated by these actions. This work aimed to investigate the interaction of action and perception in the temporal domain. In five psychophysical experiments, we have assessed the modulation of action in the flash-lag effect and in tasks involving temporal interval estimations. Our results showed that the planning and execution of a voluntary motor action are capable of reducing both visual perceptual latencies and temporal interval estimations. This reduction increases when the sensory consequences of motor actions are presented on the fovea and when a delay is injected between the action and the stimuli caused by it. (AU) | |