Philosophy of Reality

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When I was in college, my professor told our class a story about a group of sociologists who traveled to Northern Canada to a settlement of Eskimos. They had lived there for thousands of years and had never seen civilization. When the sociologists took a group of them to New York City, they couldn't see the skyscrapers. They had grown up in a world of flat ice with few, if any, vertical planes of reference--the buildings were simply too big for them to comprehend. This is supported by a simple study conducted on kittens, in which one group was given goggles with vertical lines on them and the other goggles with horizontal lines. The group which grew up wearing goggles with vertical lines had trouble seeing horizontally-elongated objects, and vice versa. The question is, if our perception is but a slice of reality and our abilities are conditioned by our world and experiences, what really is "out there" that may be perceptible to some, but not others?

I am looking for some reading on the philosophy of reality. I am interested in the challenges against consensus reality that phenomena like the story above, altered states of consciousness--lucid dreams or astral projection--so-called "hallucinations," or the information accessible through psychedelics, brings. The very fact that by ingesting a substance one can suddenly be transported to different planes of existence begs questions like, "Where am I?" I'm looking for something rigorous and systematic. I've been searching for the psychedelic side and the best thing I've found is https://www.samharris.org/podcast/item/drugs-and-the-meaning-of-life, which unfortunately only touches on the issue. The Teachings of Don Juan: A Yaqui Way of Knowledge was entertaining, but as I hear it Castaneda has been discredited, and it certainly is not a book of philosophy.