| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
|---|
| Outline of Final Research Achievements |
Time duration is the physical quantity that does not depend on sensory modalities such as visual and auditory senses. We can discriminate between one and two seconds, although we have no specialized organ for it. The prefrontal cortex receives visual, auditory, and somatosensory inputs. Also, previous studies have shown that the prefrontal cortex contributes to duration discrimination. Therefore, the prefrontal cortex is expected to play an important role in duration discrimination. I investigated neuronal activity during monkeys conducted a duration discrimination task, in which duration was assigned visual or auditory stimulus. The results suggest that the prefrontal cortex discriminates visual and auditory duration in different ways, rather than measuring duration after extraction of temporal information from different sensory inputs.
|
