We have located links that may give you full text access.
Journal Article
Research Support, Non-U.S. Gov't
Dynamic assignment of neural resources in auditory comprehension of complex sentences.
NeuroImage 2011 June 16
Under real-life adverse listening conditions, the interdependence of the brain's analysis of language structure (syntax) and its analysis of the acoustic signal is unclear. In two fMRI experiments, we first tested the functional neural organization when listening to increasingly complex syntax in fMRI. We then tested parametric combinations of syntactic complexity (argument scrambling in three degrees) with speech signal degradation (noise-band vocoding in three different numbers of bands), to shed light on the mutual dependency of sound and syntax analysis along the neural processing pathways. The left anterior and the posterior superior temporal sulcus (STS) as well as the left inferior frontal cortex (IFG) were linearly more activated as syntactic complexity increased (Experiment 1). In Experiment 2, when syntactic complexity was combined with improving signal quality, this pattern was replicated. However, when syntactic complexity was additive to degrading signal quality, the syntactic complexity effect in the IFG shifted dorsally and medially, and the activation effect in the left posterior STS shifted from posterior toward more middle sections of the sulcus. A distribution analysis of supra- as well as subthreshold data was indicative of this pattern of shifts in the anterior and posterior STS and within the IFG. Results suggest a signal quality gradient within the fronto-temporal language network. More signal-bound processing areas, lower in the processing hierarchy, become relatively more recruited for the analysis of complex language input under more challenging acoustic conditions ("upstream delegation"). This finding provides evidence for dynamic resource assignments along the neural pathways in auditory language comprehension.
Full text links
Related Resources
Trending Papers
Challenges in Septic Shock: From New Hemodynamics to Blood Purification Therapies.Journal of Personalized Medicine 2024 Februrary 4
Molecular Targets of Novel Therapeutics for Diabetic Kidney Disease: A New Era of Nephroprotection.International Journal of Molecular Sciences 2024 April 4
The 'Ten Commandments' for the 2023 European Society of Cardiology guidelines for the management of endocarditis.European Heart Journal 2024 April 18
A Guide to the Use of Vasopressors and Inotropes for Patients in Shock.Journal of Intensive Care Medicine 2024 April 14
Diagnosis and Management of Cardiac Sarcoidosis: A Scientific Statement From the American Heart Association.Circulation 2024 April 19
Essential thrombocythaemia: A contemporary approach with new drugs on the horizon.British Journal of Haematology 2024 April 9
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app