I heard there’s a requirement to participate in the studies if you’re in some psychology undergrads.

I took 101 at San Jose State and had to participate in a study as part of the curriculum. It was pretty cool. I went to the NASA Ames research center and did a study of seeing how well people could predict an object being exactly on the side of them. It was small spheres that came at you then went out of view and you clicked a butten when you thought they were exactly on your side. The tech was the most interesting, 90's era VR run on a Silicon Graphics reality engine. We has Iris boxes in the computer art lab but this thing was a much bigger...

I was required when I took (two) undergraduate psychology classes. Also, when I was in grad school I did a few, because they paid (I think) £5 per - which was, in the days of £1 Green King pints and no outside income, well worth pursuing.