Mydriasis pupil) or overactivity of the sympathetic nervous system (SNS). Pupil diameter also increases in reaction to cognitive tasks requiring memory and attention, and this phenomenon is used as an indicator of mental activation (‘arousal’) in psychophysiological experiments . Natural release of the hormone oxytocin can cause mild to moderate mydriasis. Parasympathetic fibers travel with cranial nerve III, the oculomotor nerve, to innervate the circular layer of muscle of the eye (sphincter pupillae). Damage to this nerve typically manifests itself as mydriasis, because the sympathetic supply to the pupil, which causes mydriasis, remains unaffected, and therefore unopposed. Multiple central nervous system
The Widening Gyre (album) of their new album to be released in Ireland on 20 February 2015, in the UK on 23 February 2015 and in the US on 24 February 2015. And as they borrowed the title from "The Second Coming", one of W. B. Yeats poems, the first Irishman to be awarded the Nobel Prize for Literature in 1923. Altan's official website published a presentation of their new studio album "The Widening Gyre" giving many details about the new album: the new musical direction taken by the band, the album recording process and the participation of numerous guest musicians as well as