Science Buddies: "Ask an Expert"

I have an idea for a science fair project for my local competition. I'm not expecting to reach any high ranking competitions with this idea (ISEF, etc.) but I was hoping I could get some feedback on it to see if it's "state-level" worthy. My idea is to investigate if subliminal messages affect the human brain's ability to comprehend information. I plan on testing different types of subliminal messaging (oral, visual, written, etc.) within the experiment. This is my first time doing science fair so if you have any other project ideas that would be great (ideas within psychology/behavioral science).

Hello,

Here is a post from a few years ago where a student asked a similar question. Hope this is helpful.

viewtopic.php?t=4322