Opus (Dec 2009)
O ritmo e a sua relação com som: a influência do contexto sensorial na precisão da percepção e produção de ritmo
Abstract
This article presents the final results of a neuroscientific research conducted at the Graduate Program of Neuroscience and Behavior, University of São Paulo. Assuming that the sensory modality of the temporal information can directly affect the functioning of the internal clocks, a research was developed to verify whether the synchronizing accuracy of successive finger tappings to external stimuli would be altered as a function of the sensory modalities of the timing events. To do so, two psychophysical experiments were carried out. Their results confirmed the hypothesis that the perception of rhythm is more strongly linked to the auditory system than to the visual system. The data obtained in this work also suggests that the internal timing mechanism apparently is not unique and changes when working in an auditory or visual context.
