Title |
Isolation of a Central Bottleneck of Information Processing with Time-Resolved fMRI
|
---|---|
Published in |
Neuron, December 2006
|
DOI | 10.1016/j.neuron.2006.11.009 |
Pubmed ID | |
Authors |
Paul E. Dux, Jason Ivanoff, Christopher L. Asplund, René Marois |
Abstract |
When humans attempt to perform two tasks at once, execution of the first task usually leads to postponement of the second one. This task delay is thought to result from a bottleneck occurring at a central, amodal stage of information processing that precludes two response selection or decision-making operations from being concurrently executed. Using time-resolved functional magnetic resonance imaging (fMRI), here we present a neural basis for such dual-task limitations, e.g. the inability of the posterior lateral prefrontal cortex, and possibly the superior medial frontal cortex, to process two decision-making operations at once. These results suggest that a neural network of frontal lobe areas acts as a central bottleneck of information processing that severely limits our ability to multitask. |
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Geographical breakdown
Country | Count | As % |
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United Kingdom | 1 | 33% |
Netherlands | 1 | 33% |
United States | 1 | 33% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 3 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 14 | 4% |
Germany | 6 | 2% |
United Kingdom | 5 | 1% |
France | 3 | <1% |
Switzerland | 3 | <1% |
Canada | 3 | <1% |
Japan | 2 | <1% |
Netherlands | 2 | <1% |
Brazil | 1 | <1% |
Other | 4 | 1% |
Unknown | 339 | 89% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 81 | 21% |
Student > Ph. D. Student | 77 | 20% |
Professor | 35 | 9% |
Professor > Associate Professor | 34 | 9% |
Student > Bachelor | 33 | 9% |
Other | 82 | 21% |
Unknown | 40 | 10% |
Readers by discipline | Count | As % |
---|---|---|
Psychology | 146 | 38% |
Neuroscience | 57 | 15% |
Agricultural and Biological Sciences | 34 | 9% |
Medicine and Dentistry | 28 | 7% |
Social Sciences | 18 | 5% |
Other | 45 | 12% |
Unknown | 54 | 14% |