logo
episode-header-image
Apr 2003
43m 4s

Purple Numbers and Sharp Cheese

Bbc Radio 4
About this episode

This year's Reith Lecturer is Vilayanur S Ramachandran, Director of the Centre for Brain and Cognition. He has lectured widely on art and visual perception of the brain and is Editor-in-chief of the Encyclopaedia of Human Behaviour. Professor Ramachandran's work has concentrated on investigating phenomena such as phantom limbs, anosognosia and anorexia nervosa.

In his fourth Reith Lecture, Professor Ramachandran demonstrates experimentally that the phenomenon of synesthesia is a genuine sensory effect. For example, some people literally 'see' red every time they see the number 5 or green when they see 2.

Up next
Yesterday
1. A Time of Monsters
<p>Rutger Bregman's 2025 Reith Lectures, called "Moral Revolution", explore the moral decay and un-seriousness of today's elites, drawing historical parallels to past eras of corruption that preceded transformative movements especially the 19th Century campaign to abolish slavery ... Show More
57m 37s
Jan 2025
Introducing two gripping BBC podcasts: Intrigue and Gangster
Hear thrilling investigations and stories of crime, power and control from Intrigue and Gangster.Intrigue from Radio 4 tells dramatic true stories with gripping narratives, including the award-winning series, To Catch a Scorpion.In the latest Gangster series, Livvy Haydock invest ... Show More
2m 2s
Dec 2024
Can we change violent minds?
In her final lecture, the forensic psychiatrist Dr Gwen Adshead, assesses how we deal with violent offenders and asks is it time for a re-think? The UK has more than 70 people on whole life tariffs, at incredible expense – all to appease a sense of revenge, she says.Dr Adshead as ... Show More
57m 40s
Recommended Episodes
Aug 2022
Encore - Tasty words, colorful sounds - How people with synesthesia experience the world, with Julia Simner, PhD
More than 4% of people have some form of synesthesia, a neurological condition that causes senses to link and merge. People with synesthesia may taste words, hear colors, or see calendar dates arrayed in physical space. Dr. Julia Simner, a professor of neuropsychology at the Univ ... Show More
39m 22s
Jan 2023
The Case of the Blind Mind's Eye
Close your eyes and think of a giraffe. Can you see it? I mean, *really* see it - in rich, vivid detail? If not - you aren’t alone! We’ve had scores of messages from listeners who report having a ‘blind mind’s eye’. They don’t see mental images at all and they want to know why. J ... Show More
43m 6s
Mar 2023
The Case of The Blind Man's Eye
Close your eyes and think of a giraffe. Can you see it? I mean, *really* see it - in rich, vivid detail? If not - you aren’t alone!We’ve had scores of messages from listeners who report having a ‘blind mind’s eye’. They don’t see mental images at all and they want to know why. Ju ... Show More
27m 56s
Dec 2019
Professor Russell Foster, professor of circadian neuroscience
Professor Russell Foster is head of the Sleep and Circadian Neuroscience Institute at the University of Oxford, professor of circadian neuroscience and the director of the Nuffield Laboratory of Ophthalmology. An expert in sleep, he describes it as 'the single most important heal ... Show More
41m 31s
Dec 2021
Earworms in sleep, body sensations and image, Louis Wain exhibition
Many people listen to music for hours every day, and often near bedtime in the hope of a good night’s sleep. But if you can’t get the tune out of your head could this be counter-productive? In new research, neuropsychologist Michael Scullin of Baylor University has looked at the ... Show More
28m 3s
May 2016
All in the Mind Awards, Elegy, Directors in theatre and film turn to psychologists
We hear the second nomination in this year's All in the Mind Awards - where we asked you to nominate the person or group who has made a difference to your mental health. Last week we heard from the first of the finalists in the groups category. This week we have the first of our ... Show More
28m 24s
Nov 2014
1:4 and Stigma; Emotional Brain Training; Clio Barnard
"One in Four" has been a prominent slogan in campaigns to reduce stigma and discrimination against people with mental health problems. But Clinical Psychologist Martin Seager tells Claudia Hammond why he believes saying 'one in four' people will experience mental illness in any o ... Show More
28m 1s
Feb 2016
Mind and Body
<p>On Start the Week Andrew Marr talks to Jane McGonigal, a designer of alternate reality games, about her latest innovation SuperBetter. Designed to aid her recovery from a brain injury and subsequent depression, the game reportedly gives people a sense of control over their own ... Show More
41m 21s
Sep 2022
Dreams: Prophecy, propaganda and psychoanalysis
The images, sensations and emotions we experience during sleep were once seen as the gateway to the gods and had the power to alter lives and even whole societies. Rajan Datar explores the way dreams, and their interpretation, have shaped beliefs and actions for thousands of year ... Show More
39m 47s
May 2019
Our visual experience: perception of colour and eye contact
Remember that dress? In All in the mind recorded in front of an audience at the Free Thinking Festival at Sage Gateshead, Claudia Hammond delves into the psychology and neuroscience of our visual experience. How do we know we all see the same colours? And why do adults look away ... Show More
34m 36s