"There are many theories of emotion but four of them are perhaps the most commonly discussed. They are called the James-Lange theory, Cannon-Bard theory, Schachter-Singer theory, and Opponent Process theory of emotion. The following is a brief explanation of the four theories."
"This experiment is designed to test whether you can spot the difference between a fake smile and a real one
It has 20 questions and should take you 10 minutes
It is based on research by Professor Paul Ekman, a psychologist at the University of California
Each video clip will take approximately 15 seconds to load on a 56k modem and you can only play each smile once"
"It uses an "emotional engine" and a cloud-based artificial intelligence system that allows it to analyse gestures, expressions and voice tones.
The firm said people could communicate with it "just like they would with friends and family" and it could perform various tasks.
It will go on sale to the public next year for 198,000 yen ($1,930; £1,150).
"People describe others as being robots because they have no emotions, no heart," Masayoshi Son, chief executive of Softbank, said at a press conference.
"For the first time in human history, we're giving a robot a heart, emotions.""
Neuroscientists have discovered a brain pathway that underlies the emotional behaviours critical for survival.
New research by the University of Bristol, published in the Journal of Physiology, has identified a chain of neural connections which links central survival circuits to the spinal cord, causing the body to freeze when experiencing fear.
"Crime dramas frequently depict detectives interrogating suspected criminals under bright lights to get the truth out of them. Now, a new study may lend credence to this tactic, as it suggests human emotion - both positive or negative - is experienced more intensely under bright lights."
Elephants are known to be highly social and intelligent. Now there is evidence that they engage in something that looks very much like a group hug when a fellow elephant is in distress.
Joshua Plotnik, who leads a conservation and education group called Think Elephants, and teaches conservation at Mahidol University in Thailand, studied elephants at a park in Chiang Rai Province in Thailand, to look for consolation behavior.
@AdamClark71: Everything interesting can be useful for #IBTOK but this article about animal and human #emotion caught my attention http://t.co/trHFZTDS
Psych article about emotion, perception, and memory.