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- W2076177169 abstract "Simultaneous performance of two tasks often leads to deficits in the component tasks, an effect thought to depend on the lateral prefrontal cortex (LPFC). Here, the authors recorded single-neuron activities in monkey LPFC during two simultaneous tasks, providing direct neurophysiological evidence for models of dual-task interference and capacity limitation. Simultaneous performance of two tasks often leads to performance deficits in the component tasks. This effect, known as dual-task interference, is thought to be a proof of capacity limitation in cognition, and the lateral prefrontal cortex (LPFC) has been highlighted as its putative neural substrate. Here we recorded single-neuron activities in LPFC while monkeys performed dual tasks that required the simultaneous performance of a varying-load spatial attention task and a spatial memory task. We found that the performance of the monkeys exhibited dual-task interference, and prefrontal neuron activities showed a decreased ability to represent task-relevant information to a degree proportional to the increased demand of the concurrent counterpart task. The locus of the interference was shown to originate in the simultaneous, overloaded recruitment of the same LPFC neural population by the two tasks. These results provide direct neurophysiological evidence for, and constraints to, psychological models of dual-task interference and capacity limitation." @default.
- W2076177169 created "2016-06-24" @default.
- W2076177169 creator A5027022017 @default.
- W2076177169 creator A5032537907 @default.
- W2076177169 date "2014-03-02" @default.
- W2076177169 modified "2023-10-16" @default.
- W2076177169 title "Neural mechanisms of dual-task interference and cognitive capacity limitation in the prefrontal cortex" @default.
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- W2076177169 doi "https://doi.org/10.1038/nn.3667" @default.
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