Should I pay $40 for this ThinkNeuro internship?

I’ve been wanting to do an internship related to neurology/neuroscience, and this is one of the ones I found that was supposedly free and entry-level. The thing is, we have to pay $40. Although it’s not thousands, ThinkNeuro didn’t include a disclaimer about this fee on their Instagram or application form. I’m just wondering if it’s normal to pay for research opportunities or if this is just a scam. It’s hard enough to find opportunities in the first place, so I’m leaning towards paying the $40. The benefit is that I get to have my name on the published research paper.