Dual-tasking: Is manual tapping independent of concurrently executed saccades?
| Autor: | G. Staude, Werner Wolf, Megi Sharikadze, Heiner Deubel, Dung-Khac Cong |
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| Rok vydání: | 2009 |
| Předmět: |
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Saccadic eye movement Movement Speech recognition Fixation Ocular Neuropsychological Tests Functional Laterality Fingers Finger movement Orientation Task Performance and Analysis Saccades medicine Neural control Humans Molecular Biology Communication business.industry General Neuroscience Brain Index finger medicine.anatomical_structure Motor Skills Space Perception Finger tapping Saccade Tapping Female Neurology (clinical) Psychology business Photic Stimulation Psychomotor Performance Developmental Biology Dual tasking |
| Zdroj: | Brain Research. 1283:41-49 |
| ISSN: | 0006-8993 |
| DOI: | 10.1016/j.brainres.2009.05.065 |
| Popis: | Maintaining both spatial and temporal accuracy of concurrent motor actions is a challenging behavioral requirement in multi-tasking, where possible resource bottlenecks may become apparent when these units are shared between tasks. This study addresses the question of whether periodic self-paced finger movements (tapping) compulsorily interact with concurrently executed saccades, because they share some common neural control pathways. We employed a dual-task paradigm which was previously used to demonstrate strong interference between independent but concurrently conducted bimanual tapping tasks (Wachter, C., Cong, D.K., Staude, G., Wolf, W., 2008. Coordination of a discrete response with periodic finger tapping, additional experimental aspects for a subtle mechanism. J. Motor Behav. 40, 417-432). Instead of the discrete left hand response, the 13 participants now executed a single saccadic eye movement to a fixed visual target in parallel to continuous periodic tapping of the dominant hand. We expected these reactive saccades to act as a strong perturbation event to the continuous tapping, but the experimental data did not reveal a considerable interference in this specific oculo-manual dual-task experiment. |
| Databáze: | OpenAIRE |
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