2013 Fiscal Year Final Research Report
Analyses of activation-spreading in visual cortex as an index of visual information processing
| Project/Area Number |
23500320
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Cognitive science
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
KASAI Tetsuko 北海道大学, 教育学研究科(研究院), 准教授 (50241427)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | 視覚情報処理 / 空間的統合 / 選択的注意 / 知覚的体制化 / 事象関連電位 |
|---|
| Research Abstract |
It is known that, when attention is directed toward a particular location, attention tends to spread over a whole object/group region that includes the location.The present study examined attention-spreading for emerging objects, by using event-related brain potentials with a high temporal resolution of brain activities. According to results in several experiments, we identified three attention processes: attention-spreading for groups represented as figures against the background at around 150 ms post-stimulus, selection of parsing objects at around 250 ms, and an interaction process between top-down attention and attention-spreading at around 350 ms. We also found that these processes have systematic individual differences.
|
Research Products
(30 results)
