Scientists explore blood flow bump that happens when our neurons are significantly activated

When a group of our neurons get activated by thinking hard about a math problem or the vibrant colors of an exotic flower, within a single second blood flow to those brain cells increases a bit.

source https://www.lifetechnology.com/blogs/life-technology-news-blog/scientists-explore-blood-flow-bump-that-happens-when-our-neurons-are-significantly-activated