I am a researcher in psychiatry and have published multiple papers. Now I am temporarily out of new ideas to experiment on. But I just came up with one.
I will recruit chasers, make them fill out some questionnaires, and make them sit on a chair, and play porns of cis women, trans women, femboys and cis men to them. Basically every combination. Meanwhile, I will use an eye tracking device to track where they're gazing, especially to see if they're looking at a trans woman's penis, and try to see the patterns for different genres of porn. I will also use functional near-infrared spectroscopy to see when their prefrontal cortex (responsible for attention) is most activated. I also want to recruit straight men and gay men for comparison.
Any interest in participating an experience with a big tit tranny trap shemale?
/j for anyone who may take this seriously. This is parody and studies like this will have a super hard time passing the IRB, I'd rather save myself that trouble.