| Project/Area Number |
25590211
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Experimental psychology
|
|---|
| Research Institution | National Institute for Physiological Sciences (2014)
Waseda University (2013) |
|---|
Principal Investigator |
KIDA Tetsuo 生理学研究所, 統合生理研究系, 特任准教授 (80419861)
|
|---|
| Project Period (FY) |
2013-04-01 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
|
| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
|---|
| Keywords | 注意 / 脳領域間結合 / 多感覚 / 視覚 / 脳磁図 |
|---|
| Outline of Final Research Achievements |
In this study we used magnetoencephalography (MEG) to investigate changes in inter-regional connectivity underlying attentional control. We analyzed the MEG signal in the cue-target interval in different attention tasks to examine neuronal oscillation and inter-regional connectivity during attentional control. Time-frequency analysis showed that in the cue-target interval, beta activity was desynchronized in the hemisphere contralateral to the attended side. Sensory-evoked responses were increased by spatial attention, irrespective of sensory modalities attended. Also, inter-regional connectivity between prefrontal and parietal regions was increased during attentional control compared with the baseline period. These findings support the hypothesis that early sensory processing in modality-specific cortices is regulated, irrespective of the sensory modality, by attentional control signals from the lateral prefrontal cortex in the human brain.
|
