In broad terms the results of these experiments present a novel role... <a href="http://www.bio-medicine.org/inc/biomed/biology-news.asp">http://www.bio-medicine.org/inc/biomed/biology-news.asp</a> http://feeds.bio-medicine.org/latest-biology-news with all manner of stimuli, including circulating factors such as adrenaline, as well such diverse sensory signals as odorants and light.