Mydriasis eye, and also to reduce painful ciliary muscle spasm (see cycloplegia). One effect of administration of a mydriatic is intolerance to bright light (photophobia). Purposefully-induced mydriasis via mydriatics is also used as a diagnostic test for Horner's syndrome. Mydriasis can be induced via modulation of adrenergic or cholinergic signalling. Within the adrenergic system, norepinephrine is a hormone and neurotransmitter responsible for regulating physiological processes in the body, including the involuntary muscles of the autonomic nervous system (such as the dilation or constriction of the pupil aperture via the muscles of the iris). Modulation of norepinephrine signalling can induce mydriasis. For
The Widening Gyre (album) there some of the fourteen tracks of this superb album. [...] Throughout the album, American and Irish tunes intertwine with each other and lay down a wonderful template sublimated by Mairéad Ní Mhaonaigh's crystalline voice and her fellow musicians' instruments. Once again, a nice piece of work." In December 2015, The Telegraph's culture editor Martin Chilton chose "The Widening Gyre" as one of the 70 best folk music albums of the year 2015. On 7 March 2015, "The Widening Gyre" entered the Billboard Top Ten World Music Albums Charts at #5 (its peak position ever) and hold #5 for six