It's 4am, and the big test is in 8 hours. You've been studying for days, but you still don't feel ready. Should you drink another cup of coffee and spend the next few hours cramming? Or should you go to sleep? Shai Marcu defends the...

Planarians are flatworms most known for being able to grow a new head if it gets cut off, but perhaps even stranger is the fact that their new head retains some of the memories from the old one.

Scott Fraser studies how humans remember crimes -- and bear witness to them. In this powerful talk, which focuses on a deadly shooting at sunset, he suggests that even close-up eyewitnesses to a crime can create "memories" they could not...

Why is that some experiences feel like they last forever, while others fly by? We tend to miscalculate the time it takes to engage in novel activities due to the influence of memories. Matt Danzico explains why your childhood feels like...

Most of us have felt it before, that strange sensation that you've been somewhere or seen something before, as if you already remembered what's happening. Are you psychic? Nope, that's just deja vu. Why does deja vu happen? Well,...

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Psychologist Elizabeth Loftus studies memories. More precisely, she studies false memories, when people either...

How does memory work? And how does.... un-memory work? Our brain does a lot of remembering and forgetting every day, so you should probably make room for som info on how it works. You'll also get to meet some people who can't make...

In this REALLY IMPORTANT EPISODE of Crash Course Psychology, Hank talks about how we remember and forget things, why our memories are fallible, and the dangers that can pose.
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What does it look like inside the mind of a machine? Inspired by the architectural vision of a futuristic Los Angeles in "Blade Runner," media artist Refik Anadol melds art with artificial intelligence in his studio's collaborations with...

With 955,000,000 worldwide users, Facebook seems like just about everyone makes use of the social media giant to connect with friends, share photos, and update everyone they've ever met since grade school about their dinner plans. But...

Think back to a really vivid memory. Got it? Now try to remember what you had for lunch three weeks ago. That second memory probably isn't as strong-but why not? Why do we remember some things, and not others? And why do memories...

Let’s face it: humans stink! But that’s not always a bad thing - we use smells to interact with each other and navigate our lives.

You’re on the internet, so you probably know that people sometimes claim to have been abducted by aliens. When researchers start to look closely at these stories and where they come from, they begin to realize that there might be...

What if you couldn’t remember anything past 30 seconds? Let us introduce you to a man named Henry Molaison who was diagnosed with anterograde amnesia. He couldn’t form new memories.

In a 1990's study, participants recalled getting lost in a shopping mall as children. Some shared these memories in vivid detail, but there was one problem: none of these people had actually gotten lost in a mall. They produced these...

When birds and squirrels cache food for the winter, it means they have to remember where to find that food later. Their strategies for finding their hidden feasts includes memory tricks and changing brains.

Babies are amazing, tiny humans. They’re so fascinating that we’ve done a lot of videos about them, so we’ve collected a bunch of our favorites here for you to enjoy!

Today Hank is building on last week’s exploration of identity to focus on personal identity. Does it in reside in your body? Is it in the collective memories of your consciousness? There are, of course, strengths and weaknesses to both...

You're pretty sure being a baby was awesome, but why can't you actually remember any of it?

If you feel like you’ve been more forgetful than normal recently, you’re definitely not alone. Your memory can have a lot to do with what's happening around you.

Turns out, two atomic clocks are indeed better than one. And what role does sleep play in memory suppression?

Much like the biological processes in the rest of your body, a lot of your brain's psychological processes happen without you thinking directly about them,or even being aware of them.

Sleep is your life-support system and Mother Nature's best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when you get...

Remember that guy from 300? What was his name? ARG!!! It turns out our brains make and recall memories in different ways. In this episode of Crash Course Psychology, Hank talks about the way we do it, what damaging that process...