2009 Fiscal Year Final Research Report
Naturalness and reality estimated by brain activity reflecting perceptual and cognitive state
| Project/Area Number |
19300071
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Sensitivity informatics/Soft computing
|
|---|
| Research Institution | Toyohashi University of Technology |
|---|
Principal Investigator |
NAKAUCHI Shigeki Toyohashi University of Technology, 工学部, 教授 (00252320)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KITAZAKI Michiteru 豊橋技術科学大学, 未来ビークルリサーチセンター (90292739)
|
|---|
| Project Period (FY) |
2007 – 2009
|
| Keywords | 脳波 / 顔情報処理 / P300 / N170 / ガンマ帯 / 不自然さ |
|---|
| Research Abstract |
This study examined the relationship between the 'naturalness' of a visual stimulus and the event-related potentials measured during an oddball task.The study focused on asymmetry of the P3 amplitude during an oddball task or P3 asymmetry. Participants performed two visual oddball tasks using a pair of stimuli (A and B) : one in which A was the target stimulus and B was the standard stimulus and vice versa. The stimuli consisted of natural-unnatural pairs of visual stimuli (e.g. upright-inverted faces, possible-impossible human poses). As a result of comparing the amplitudes of the target stimuli, P3 asymmetry was found in natural-unnatural pairs ; that is, their naturalness differentiated the target P3 amplitude : larger P3 to the unnatural target than to the natural one. This study showed that P3 asymmetry reflected unnaturalness and unfamiliarity of visual stimuli.
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Speech-related rhythmic activities in the motor cortex2008
Author(s)
Tamura, T., Gunji, A., Koyama, S., Kitazaki, M., Shigemasu, H., Matsuzaki, N., Takeichi, H.
Organizer
The 38th annual meeting of the Society for Neuroscience
Year and Date
20081100
-
-
-
-
-
-
-
-
-
-
-
-
