| Project/Area Number |
15530466
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Experimental psychology
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
KAWABATA Yasuhiro Hokkaido Univ., Grad.School of Letter, Asso.Prof., 大学院・文学研究科, 助教授 (30260392)
|
|---|
| Project Period (FY) |
2003 – 2005
|
| Project Status |
Completed (Fiscal Year 2005)
|
| Budget Amount *help |
¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2005: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2004: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2003: ¥1,400,000 (Direct Cost: ¥1,400,000)
|
|---|
| Keywords | Wide spatial presentation / Chromatic system / Luminance system / Interaction among modules / Adaptation level / Spatial frequency / Contrast sensitivity / Orientation / 色検出機構 / 輝度検出機構 / 色処理システム / 輝度処理システム / 相互作用 / コントラスト感度曲線 / 液晶プロジェクター |
|---|
| Research Abstract |
The present research studied that the interaction between chromatic and achromatic systems in the wide visual presentation condition. Experiments 1 and 2 showed that the contrast sensitivity function of the chromatic system was shifted to higher spatial frequency region and the peak spatial frequency also as the chromatic saturation of the background field was increased. Experiment 3 showed that there were three or four chromatic channels in the low and middle spatial frequency region. It was suggested that the chromatic coding systems, which are assumed to posses poorer spatial resolution or better global cognition than the luminance system which could also change its own spatial organization.
|
