We all like to think we are in control of our lives - of what we feel and what we think. But scientists are now discovering this is often simply an illusion. Surprising experiments are revealing that what you think you do and what you actually do can be very different. Your unconscious mind is often calling the shots, influencing the decisions you make, from what you eat to who you fall in love with. If you think you are really in control of your life, you may have to think again.
In part 3, Prof. Shapiro shows us that the brain is challenged to process some stimuli from the eyes and sometimes "guesses" what you are seeing. Join him as he takes us through visual perception challenges like the "Curveball Illusion". Has he thrown you for a loop yet?
Horizon uncovers the truth about how you really make decisions. Every day you make thousands of decisions, big and small, and behind all them is a powerful battle in your mind, pitting intuition against logic. This conflict affects every aspect of your life - from what you eat to what you believe, and especially to how you spend your money. And it turns out that the intuitive part of your mind is a lot more powerful than you may realise.
Is your smart phone making you stupid? Can you make yourself cleverer? The Great British Intelligence Test measures the brainpower of the nation in one of the largest intelligence experiments of its kind. Devised with leading scientists at Imperial College, London, over 250,000 people around the nation have taken part so far - revealing important new science about the nation’s changing intelligence. Dr Hannah Fry and Michael Mosley put the public to the test, pitting young and old, males and females and tech lovers and readers against each other in a battle of wits. The audience can also play along online at www.bbc.co.uk/intelligencetest The results reveal new science about how our intelligence changes through our life. Which mental abilities peak in our 80s? And when can adults be outsmarted by ten-year-olds? It explores how our gender can affect our intelligence and uncovers groundbreaking new science on how our lifestyle and love of technology is changing our brain. Which of our digital habits are improving our mental abilities and which are harming us?