The Mind Speller is a EEG(electro-encephalogram)-based device that interprets brain waves to spell words and phrases. It detects and interprets P300 event-related potentials in the EEG-signals of a person that is selecting characters from a display presenting alternate rows and columns of characters. P300 potentials are often used as metrics of cognitive function in decision making processes. However, currently available P300 devices are large, expensive and uncomfortable in use. The Mind Speller, on the other hand, uses a portable device, not larger than a matchbox, connected to a cap that contains electrodes located at specific positions on the head to capture the relevant EEG-signals. [continue reading…]
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Age and gender play a major role in how people respond to stress, according to a new study on 20-to-64-year-olds. Published in the journal Psychophysiology, the investigation was led by scientists from the Université de Montréal and the Montreal Heart Institute in collaboration with colleagues from the Université du Québec à Montréal and McGill University. [continue reading…]
They would love to be perfect mothers. Instead, they feel ashamed and inadequate, and fearful that their children might inherit their eating difficulties.
Imagine an ordinary Norwegian home, where Mum is having dinner with her three-year-old son. Underneath the surface of this seemingly idyllic scene, the woman is fighting a fierce battle with herself, thinking: “I wish he could finish eating, so I can go to the bathroom and throw up.” [continue reading…]
A study by researchers at the University of Warwick and Cardiff University has found that money only makes people happier if it improves their social rank. The researchers found that simply being highly paid wasn’t enough – to be happy, people must perceive themselves as being more highly paid than their friends and work colleagues.
The researchers were seeking to explain why people in rich nations have not become any happier on average over the last 40 years even though economic growth has led to substantial increases in average incomes. [continue reading…]
