Needs indexing and whatnot.
One of the common ways that humans and aliens differ, is that they tend to think in a very
different way to humans. These are tropes that highlight that difference. Frequently overlaps with Bizarre Alien Biology
if the brain is radically different. Expect Blue and Orange Morality
to show up a lot.
Live Action Television
- Babylon 5: Lower-mid level telepaths like Leeta and Talia don't like to go very deep into alien minds. It's... not a comfortable experience, as demonstrated at least once on the show when a P-5 telepath scans a Narn, and practically craps herself.
- The Eiffel65 song "Another Race": It's another race / From outer Space / We can't communicate, with their one-way brains / No matter how you try, you just can't understand them.
- Dungeons & Dragons: Beholders in D&D have two brains - for some reason they process their data through the emotional part before transfering it to the logical part. Which means, if something is against a beholder's beliefs (which, through genetic memory always amount to Always Chaotic Evil racist monster) it won't ever get far enought to apply to its logic.