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  2. Pupillary response - Wikipedia

    en.wikipedia.org/wiki/Pupillary_response

    Dilation and constriction of the pupil. Pupillary response is a physiological response that varies the size of the pupil, via the optic and oculomotor cranial nerve.. A constriction response (), [1] is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates/opioids or anti-hypertension medications.

  3. Mydriasis - Wikipedia

    en.wikipedia.org/wiki/Mydriasis

    A mydriatic pupil will remain excessively large even in a bright environment. The excitation of the radial fibres of the iris which increases the pupillary aperture is referred to as a mydriasis. More generally, mydriasis also refers to the natural dilation of pupils, for instance in low light conditions or under sympathetic stimulation.

  4. Pupils may reveal memories you are reliving during sleep ...

    www.aol.com/pupils-may-reveal-memories-reliving...

    A contracted pupil during sleep may be an indication the brain is replaying new memories while a dilated one may hint at older memories being relived, a new study suggests.. The study, published ...

  5. Pupillary reflex - Wikipedia

    en.wikipedia.org/wiki/Pupillary_reflex

    The pupillary reflex results in the pupil constricting (left) and dilating (right) These include the pupillary light reflex and accommodation reflex . Although the pupillary response , in which the pupil dilates or constricts due to light is not usually called a "reflex", it is still usually considered a part of this topic.

  6. 7 reasons why your pupils may be dilated, from low light to ...

    www.aol.com/news/7-reasons-why-pupils-may...

    When pupils are dilated, it means that they grow larger in size. This can happen for a number of different reasons, including drug use and arousal. 7 reasons why your pupils may be dilated, from ...

  7. Facial expression - Wikipedia

    en.wikipedia.org/wiki/Facial_expression

    Pupil dilation is a significant cue to a level of excitement, pleasure, or attraction. Dilated pupils indicate greater affection or attraction, while constricted pupils send a colder signal. Dilated pupils indicate greater affection or attraction, while constricted pupils send a colder signal.

  8. Pupillary light reflex - Wikipedia

    en.wikipedia.org/wiki/Pupillary_light_reflex

    The higher the value, the smaller the time step used in the simulation and, consequently, the smaller the pupil constriction/dilation velocity. In order to improve the realism of the resulting simulations, the hippus effect can be approximated by adding small random variations to the environment light (in the range 0.05–0.3 Hz).

  9. Escitalopram (Lexapro): Everything You Need to Know Before ...

    www.aol.com/escitalopram-lexapro-everything-know...

    Dilated pupils. Loss of muscle coordination or twitching muscles. Muscle rigidity. Tremor. Heavy sweating. Diarrhea. Headache. Shivering. Goosebumps. Severe serotonin syndrome can be life ...