The distribution of spatial attention changes with task demands during goal-directed reaching
| Autor: | Anna Ma-Wyatt, Heidi Long |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Adult
Male Time Factors Movement Task (project management) Young Adult Psychophysics Reaction Time Humans Attention Latency (engineering) Movement (music) General Neuroscience Space perception Space Perception Divided attention Linear Models Central vision Female Visual Fields Psychology Goals Movement planning Photic Stimulation Cognitive psychology |
| Zdroj: | Experimental Brain Research. 232:1883-1893 |
| ISSN: | 1432-1106 0014-4819 |
| DOI: | 10.1007/s00221-014-3880-6 |
| Popis: | Goal-directed movements are commonly used to allow humans to interact with their environment. When making a goal-directed movement in a natural environment, there are many competing stimuli. It is therefore important to understand how making a goal-directed movement could be impacted by the need to divide attention between the movement and competing stimuli. We used a dual-task paradigm to investigate the sharing of attentional resources between a search task in central vision and a peripheral pointing task completed concurrently. Results suggest some degree of shared attentional resources between these two tasks with performance on both central and peripheral tasks degraded under dual-task conditions. Movement latency, but not movement time, was also affected by dual-task conditions. Altogether, the results suggest that there is a cost to reach performance if attention is engaged away from the movement goal. Interestingly, this cost is associated with movement planning rather than execution. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink