Claudia Hammond revisits David Rosenhan's influential 1973 study of psychiatric diagnoses.
BBC Radio 4 Extra
Greeks are reporting problems with online payments. Could Bitcoin provide the answer?
BBC World Service
How people in rural Greece are coping with financial uncertainty.
BBC Radio 4
10/20 The grass cutter ants work together as a team to carry grass to their home. (R)
Wildlife sound recordist Chris Watson presents the red-legged partridge. (R)
The 1920s experiment in a Chicago factory that gave rise to a classic textbook phenomenon.
Laurie Taylor considers Arab Londoners. Also, migrants' sense of British identity.
BBC Radio 4 FM only
2/3 A look at a campaign to stop motorists overusing the Peak District villages' green lanes. (R)