Pupillary response Pupillary response Pupillary response is a physiological response that varies the size of the pupil, via the optic and oculomotor cranial nerve. A constriction response (miosis), is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates/opioids or anti hypertension medications. Constriction of the pupil occurs when the circular muscle, controlled by the parasympathetic nervous system (PSNS), contracts. A dilation response (mydriasis), is the widening of the pupil and may be caused by adrenaline, anticholinergic agents or drugs such as MDMA, cocaine, amphetamines and some hallucinogenics. Dilation of the pupil occurs when the
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