Can someone link me to a website about a human study?

I’m trying to do a research project involving the relationship between how crickets and people think and associate different things. Problem is I can’t find a website on any human studies. Can someone link me to a site that explores studies done on people about how they associate 2 different things. By associate I mean like if every time a person saw a guy in a blue coat ( neutral stimulant ) rob a bank ( negative stimulant ) he would associate the 2 different things and fear people in blue coats.