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
I Wouldn't Normally Do This Kind of Thing I Wouldn't Normally Do This Kind of Thing "I Wouldn't Normally Do This Kind of Thing" is the third single from Pet Shop Boys' fifth album "Very". It was released in the UK by Parlophone Records on 29 November 1993, where it eventually reached number 13 in the chart. It reached number 2 on the US Club chart where it was released in January 1994. It appears to describe a person, normally hesitant to unwind and show his feelings, who—because of some event in his life (possibly a love interest)—suddenly becomes willing to let it all hang out. It is