<http://schema.org/description>
"A group of Spanish researchers has discovered a new function of the neurotransmitter dopamine in controlling sleep regulation. Dopamine acts in the pineal gland, which is central to dictating the 'circadian rhythm' in humans&amp;amp;#151;the series of biological processes that enables brain activity to adapt to the time of the day (that is, light and dark cycles). The researchers, from the CIBERNED (Centro de Investigaci&amp;amp;#243;n Biom&amp;amp;#233;dica en Red de Enfermedades Neurodegenerativas), dependant on the Spanish Ministry of Economy and Competitiveness through the Carlos III Health Institute, and from the Faculty of Biology of the University of Barcelona, publish their findings 19 June in the open-access journal PLoS Biology."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2012-06-role-dopamine.html>