So I'm planning a senior honors thesis that'll start next summer. In my last post, I talked about testing magnetoreception, which is kind of risky. Another idea of mine is to take human subjects into a dark room, use filtered light to produce light at increments one 1 nm, and note the longest wavelength of light the individual can perceive. I'd then plot the distribution and study it. I'd love to find someone who was two or three standard deviations from the mean and could see light traditionally classified as IR! Of course, to find such a person, I'll need over a hundred human subjects. What do you guys think of this? It doesn't seem as well researched as one might expect. For instance, I can't even find an exact average for the longest perceivable wavelength. Most of us know it's about 700-750 nm, but I cannot find an exact wavelength anywhere, which leads me to believe there might be a lot of variation? I'd really hate to do this experiment and then find out that everyone has the same cutoff. But it's pretty safe to assume there'll be at least some variation, right? (Even my two eyes perceive color differently--my right definitely sees more blue). So I'd love any input you all have. Oh yeah, and I'm a neuroscience major, hoping to do a PhD after college.