The main difference between top down and bottom up is bottom up. Concepts are formed with specific examples. Visual thinkers are bottom, even the mathematicians are much more bottom up. It takes a lot of information to be a good bottom up thinker because what you're doing is taking specific examples and putting them in categories.
Best-selling author, scientist, and trailblazer in autism research, Dr. Temple Grandin’s new book “Visual Thinking” draws on cutting-edge research and her own lived experience to reframe the conversation on neurodiversity and different types of thinkers.