| Comparison of MEG responses to the sinusoidal flicker and the envelope of amplitude-modulated flicker. | |
| | |
MedLine Citation:
|
PMID: 20969920 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
For a flickering light with two or more frequency components, the temporal envelope of the flickering light is perceived, although there is no frequency component at the frequency of the envelope. To address the processing of the temporal envelope, we compared cortical responses to the envelope of amplitude-modulated (AM) flickering lights with responses to sinusoidal flickering lights. We measured magnetoencephalographic (MEG) responses to AM and sinusoidal flickering lights while changing the frequency of the temporal envelope of AM flickering light and the stimulus frequency of sinusoidal flickering light. The result showed that the strength of the MEG response to sinusoidal flickering light increased with stimulus frequency in the low frequency range. This probably resulted from the band-pass filtering in the visual system. However, such an increase in the low frequency range was not observed for the envelope of AM flickering light. The absence of the increase in MEG responses suggests that the envelope of AM flickering light is not subject to band-pass filtering in the visual system. It is therefore possible that the envelope is represented after the band-pass filtering stage. |
| | |
Authors:
|
Yosuke Okamoto; Seiji Nakagawa |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-10-20 |
Journal Detail:
|
Title: Neuroscience letters Volume: 487 ISSN: 1872-7972 ISO Abbreviation: Neurosci. Lett. Publication Date: 2011 Jan |
Date Detail:
|
Created Date: 2010-12-20 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7600130 Medline TA: Neurosci Lett Country: Ireland |
Other Details:
|
Languages: eng Pagination: 207-10 Citation Subset: IM |
Copyright Information:
|
Copyright © 2010 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
|
Health Research Institute, National Institute of Advanced Industrial Science and Technology , Ikeda, Osaka 563-8577, Japan. yos-okamoto@aist.go.jp |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Post-exposure treatment with ginsenoside compound K ameliorates auditory functional injury associate...
Next Document: STAT5 regulates glioma cell invasion by pathways dependent and independent of STAT5 DNA binding.