Boredom • 2012

4:11

It’s true – some people hear colors, or taste words. But what produces synesthesia?

2015 • Brain

59:09

Roses are red, violets are blue but according to the latest understanding these colours are really an illusion. One that you create yourself. Horizon reveals a surprising truth about how we all see the world. You may think a rose is red, the sky is blue and the grass is green, but it now seems that the colours you see may not always be the same as the colours I see. Your age, sex and even mood can affect how you experience colours. Scientists have unlocked the hidden power that colours can have over your life - how red can make you a winner, how blue makes time speed up, and more.

Brain

24:21

Humans are the only Earthlings with complex language. But at what cost was that ability acquired? In this episode, I visit Tetsuro Matsuzawa to learn about his influential cognitive tradeoff hypothesis.

S3E1 • Mind Field • 2019 • Brain

4:02

Are we wholly responsible for our actions? We don’t choose our brains, our genetic inheritance, our circumstances, our milieu – so how much control do we really have over our lives? Philosopher Raoul Martinez argues that no one is truly blameworthy. Our most visionary scientists, psychologists and philosophers have agreed that we have far less free will than we think, and yet most of society’s systems are structured around the opposite principle – that we are all on a level playing field, and we all get what we deserve.

RSA Shorts • 2017 • Brain

10:12

Part 1 of this eight-part series of shorts introduces the world of the visual scientist. Beyond boggling your mind, Prof. Arthur Shapiro explains how and why you see what you see -- and what part of what you see is actually "real", as opposed to how your mind fills in the blanks.

S1E1 • Illusions • 2017 • Brain

117:37

Jim Al-Khalili goes on a journey through 600 million years of evolution to uncover how the human brain, the most complex structure known in the universe, came to exist. Chapter 1: With some 100 billion neurons and over 100 trillion connections - more than all the stars in the Milky Way - the human brain is one of nature's greatest achievements. But how did something so incredibly sophisticated evolve from its simple beginnings? Chapter 2: Jim watches primates in action to see how they tackle survival challenges, revealing the clever tricks that shaped the brain's thinking. But the real breakthrough came when brains learned to be social. Teaming up with his wife, Jim investigates how relationships and friendships made people more intelligent. With AI getting smarter by the day, Jim wants to know what makes biological brains so special. Through scans, fossil discoveries and cutting-edge research, he uncovers what makes the brain so hard to emulate.

Horizon • 2025 • Brain