World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Plos One : a Beamformer Analysis of Meg Data Reveals Frontal Generators of the Musically Elicited Mismatch Negativity, Volume 8

By Penney, Trevor, Bruce

Click here to view

Book Id: WPLBN0003942499
Format Type: PDF eBook :
File Size:
Reproduction Date: 2015

Title: Plos One : a Beamformer Analysis of Meg Data Reveals Frontal Generators of the Musically Elicited Mismatch Negativity, Volume 8  
Author: Penney, Trevor, Bruce
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary)
Historic
Publication Date:
Publisher: Plos

Citation

APA MLA Chicago

Penney, T. B. (n.d.). Plos One : a Beamformer Analysis of Meg Data Reveals Frontal Generators of the Musically Elicited Mismatch Negativity, Volume 8. Retrieved from http://netlibrary.net/


Description
Description : To localize the neural generators of the musically elicited mismatch negativity with high temporal resolution we conducted a beamformer analysis (Synthetic Aperture Magnetometry, SAM) on magnetoencephalography (MEG) data from a previous musical mismatch study. The stimuli consisted of a six-tone melodic sequence comprising broken chords in C- and G-major. The musical sequence was presented within an oddball paradigm in which the last tone was lowered occasionally (20%) by a minor third. The beamforming analysis revealed significant right hemispheric neural activation in the superior temporal (STC), inferior frontal (IFC), superior frontal (SFC) and orbitofrontal (OFC) cortices within a time window of 100–200 ms after the occurrence of a deviant tone. IFC and SFC activation was also observed in the left hemisphere. The pronounced early right inferior frontal activation of the auditory mismatch negativity has not been shown in MEG studies so far. The activation in STC and IFC is consistent with earlier electroencephalography (EEG), optical imaging and functional magnetic resonance imaging (fMRI) studies that reveal the auditory and inferior frontal cortices as main generators of the auditory MMN. The observed right hemispheric IFC is also in line with some previous music studies showing similar activation patterns after harmonic syntactic violations. The results demonstrate that a deviant tone within a musical sequence recruits immediately a distributed neural network in frontal and prefrontal areas suggesting that top-down processes are involved when expectation violation occurs within well-known stimuli.

 

Click To View

Additional Books


  • Plos One : Co-variation of Depressive Mo... (by )
  • Plos One : In-depth Glycoproteomic Chara... (by )
  • Plos One : Analysis of Group Ica-based C... (by )
  • Plos One : Association Between Mmp1 -160... (by )
  • Plos One : Foraging Behaviour of Juvenil... (by )
  • Plos One : Atypical Integration of Motio... (by )
  • Plos One : New Preclinical Antimalarial ... (by )
  • Plos One : Vocal Imitation in Parrots Al... (by )
  • Plos One : a High Burden of Respiratory ... (by )
  • Plos One : No Evidence for Cardiac Dysfu... (by )
  • Plos One : Hydrogen Improves Glycemic Co... (by )
  • Plos One : Molecular Basis of Renal Adap... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.