Isolation of a Central Bottleneck of Information Processing with Time-Resolved fMRI

Dux, Paul E., Ivanoff, Jason, Asplund, Christopher L. and Marois, Rene (2006) Isolation of a Central Bottleneck of Information Processing with Time-Resolved fMRI. Neuron, 52 6: 1109-1120. doi:10.1016/j.neuron.2006.11.009


Author Dux, Paul E.
Ivanoff, Jason
Asplund, Christopher L.
Marois, Rene
Title Isolation of a Central Bottleneck of Information Processing with Time-Resolved fMRI
Journal name Neuron   Check publisher's open access policy
ISSN 0896-6273
Publication date 2006-12-01
Year available 2006
Sub-type Article (original research)
DOI 10.1016/j.neuron.2006.11.009
Open Access Status DOI
Volume 52
Issue 6
Start page 1109
End page 1120
Total pages 12
Place of publication Cambridge, Mass
Publisher Cell Press
Language eng
Subject 1701 Psychology
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.
Keyword Sysneuro
Q-Index Code C1
Grant ID R01 MH070776
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Psychology Publications
 
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