| Real-time noise cancellation for speech acquired in interactive functional magnetic resonance imaging studies. | |
| | |
MedLine Citation:
|
PMID: 20815071 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: To present online scanner noise cancellation for speech acquired in functional magnetic resonance imaging (fMRI) studies. MATERIALS AND METHODS: An online active noise cancellation method for speech acquired in fMRI studies was developed. The approach consists of two automated steps: 1) creation of an MR noise template in a short "test" fMRI scan; 2) application of the template for automatic recognition and subtraction of the MR noise from the acquired microphone signal during an fMRI study. The method was applied in an experimental paradigm where a subject and an investigator communicated in an interactive verbal generation task during fMRI. RESULTS: By applying online active noise cancellation, the quality of the subject's speech was substantially improved. The present approach was found to be flexible, reliable, and easy to implement, providing a method for fMRI studies that investigate the neural correlates of interactive speech communication. CONCLUSION: Using online noise cancellation it is possible to improve the quality of acquired speech in fMRI. This approach may be recommended for interactive fMRI studies. |
| | |
Authors:
|
Mikhail Zvyagintsev; Martin Klasen; Krystyna A Mathiak; René Weber; J Christopher Edgar; Klaus Mathiak |
Publication Detail:
|
Type: Case Reports; Journal Article; Research Support, Non-U.S. Gov't; Review |
Journal Detail:
|
Title: Journal of magnetic resonance imaging : JMRI Volume: 32 ISSN: 1522-2586 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2010 Sep |
Date Detail:
|
Created Date: 2010-09-03 Completed Date: 2011-01-10 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: United States |
Other Details:
|
Languages: eng Pagination: 705-13 Citation Subset: IM |
Affiliation:
|
Department of Psychiatry and Psychotherapy, JARA-Translational Brain Research, RWTH Aachen University, Aachen, Germany. mzvyagintsev@ukaachen.de |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Artifacts* Brain Mapping / methods Humans Imaging, Three-Dimensional / methods Magnetic Resonance Imaging / methods* Male Noise* Reproducibility of Results Signal Processing, Computer-Assisted* Speech* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Use of time resolved magnetic resonance imaging in the diagnosis of pelvic congestion syndrome.
Next Document: Evaluation of intraneural ganglion cysts using three-dimensional fast spin echo-cube.