'Fearless' twins show body affects emotions

• Autores: Helen Thomson
• Localización: New scientist, ISSN 0262-4079, Nº. 3067, 2016, pág. 9
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • People who have lost the amygdalae, two almond-shaped structures in the brain, through injury or disease also lose the ability to feel most kinds of fear. In 2013, Justin Feinstein, then at the University of Iowa in Iowa City, and his colleagues managed to scare three "fearless" people--two female identical twins and a woman known as S.M., all of whom had had their amygdalae destroyed by illness. Feinstein made them inhale carbon dioxide, giving them the sensation of choking. This was the first time that S.M. had experienced fear since she was a child. It showed that the amygdalae are not essential for all kinds of fear.