| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2014: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2013: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2012: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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| Outline of Final Research Achievements |
In order to understand the functional differences across modules related to color processing in monkey higher visual areas, we examined the effect of luminance contrast of the stimuli on the responses of color selective neurons in areas V4, posterior inferotemporal color area (PITC) and anterior inferotemporal color area (AITC). We found that the responses of V4 and PITC neurons were affected by the luminance contrast of color stimuli: those of V4 neurons seemed to be explained by the influence of cone difference signals whereas those of PITC neurons depended on the saturation of the stimuli. On the other hand, the response of AITC neurons were not affected by the luminance contrast. These results indicate that color and luminance information are separated within AITC or between PITC and AITC.
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