system
Given the following post, respond as if you're commenting on Reddit:
human
What are the most interesting yet obscure psychological studies you can think of?

Sorry if this doesn't conform to the sub rules. I'm in a mid-level university course and need to do an in-depth report on a specific psychological study. I'm hoping to find something obscure and interesting, as the post said. Again, sorry to the mods if this doesn't conform to sub rules.
gpt
I came across this one recently.

Bernard Bass in Organizational Psychology (1965) has studies showing that, because of distance of accurate facial expression perception and other specific metrics, meetings should take place with no more than 12 people. Basically, adding more after that point gets you one more unheard voice per person added.