Brain mechanisms for the cognitive effects of dual task interference
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Heo, Yeseul
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Abstract
Our ability to multitask has been found to have critical limitations primarily due to the restricted available attentional resources. Although many studies have explored the phenomena of processing bottleneck using serial reaction time experimental designs, there has been a significant limitation in the current literature due to the complex nature of multiple task representations. In other words, it is difficult to relate the discrepancy in performances during one-task and two-task solely to the differences in the task representation mechanisms because of the convoluted interaction between the single task and dual task experiments. To minimize such discrepancy, Schumacher et al. (2018) introduced a novel dual-task procedure that uses constant stimuli for one-task and two-task conditions. This study expanded the work by Schumacher et al. by replicating the experimental design to observe similar performance trends that show greater effects of dual-task interference in the two-task condition compared to that in the one-task condition. This finding set the stage for functional data collection that will occur following the current study using neuroimaging techniques to identify the neural correlates responsible for the facilitation of multitasking.
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2020-08
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Undergraduate Thesis