| Neural processes for intentional control of perceptual switching: A magnetoencephalography study. | |
| | |
MedLine Citation:
|
PMID: 21319267 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
This article reports an interesting link between the psychophysical property of intentional control of perceptual switching and the underlying neural activities. First, we revealed that the timing of perceptual switching for a dynamical dot quartet can be controlled by the observers' intention, without eye movement. However, there is a clear limitation to this control, such that each animation frame of the stimulus must be presented for a sufficiently long time length; in other words, the frequency of the stimulus alternation must be sufficiently slow for the control. The typical stimulus onset asynchrony for a 50% level of success was about 275 ms for an average of 10 observers. On the basis of psychophysical property, we designed three experiments for investigating the neural process with a magnetoencephalography. They revealed that: (1) a peak component occurring about 300 ms after a reversal was stronger when the direction of perceived motion was switched intentionally than when it was not switched, and (2) neural components about 30-40 ms and 240-250 ms after the reversal of the stimulus animation were stronger when perception was altered intentionally than when it was switched unintentionally. The 300 ms component is consistent with a previous study about passive perceptual switching (Struber and Herrmann [ 2002]: Cogn Brain Res 14:370-382), but the intentional effect was seemed to be a different component from the well-known P300 component. Hum Brain Mapp, 2011. © 2010 Wiley-Liss, Inc. |
| | |
Authors:
|
Masanori Shimono; Keiichi Kitajo; Tsunehiro Takeda |
Related Documents
:
|
23252737 - Electrocommunication behaviour during social interactions in two species of pulse-type ... 19354817 - Spectral component relationships in wind instrument transients. 10223457 - Comparison of tissue impedance measurements with nerve fiber architecture in human tele... 22979627 - The effect of visual information on speech perception in noise by electroacoustic hearing. 21243967 - Emg frequency during isometric, submaximal activity: a statistical model for biceps bra... 19927697 - Factors affecting outcomes on the ten (spl) test in adults with hearing loss. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Human brain mapping Volume: 32 ISSN: 1097-0193 ISO Abbreviation: Hum Brain Mapp Publication Date: 2011 Mar |
Date Detail:
|
Created Date: 2011-02-14 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9419065 Medline TA: Hum Brain Mapp Country: United States |
Other Details:
|
Languages: eng Pagination: 397-412 Citation Subset: IM |
Copyright Information:
|
Copyright © 2010 Wiley-Liss, Inc. |
Affiliation:
|
Cognitive Neuroscience Group, Neuroscience Research Institute, AIST, Tsukuba Central 2, Tsukuba, Ibaraki 305-8568, Japan. shimono@brain.k.u-tokyo.ac.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: Exploring the detection of associatively novel events using fMRI.
Next Document: Improving the interpretability of all-to-all pairwise source connectivity analysis in MEG with nonho...