Modulation of physiological reflexes by pain: role of the locus coeruleus
The locus coeruleus is activated by noxious stimuli, and this activation leads to inhibition of perceived pain. As two physiological reflexes, the acoustic startle reflex and the pupillary light reflex, are sensitive to noxious stimuli, this sensitivity,
Elemer eSzabadi
doaj +1 more source
Circadian Control of the Pupillary Light Responses in an Avian Model of Blindness, the GUCY1* Chickens [PDF]
PURPOSE. The vertebrate inner retina has a subset of intrinsically photosensitive retinal ganglion cells (ipRGCs) that express the nonvisual photopigment melanopsin.
Della Costa, Natalia Soledad +4 more
core +1 more source
Modeling Human Pupil Dilation to Decouple the Pupillary Light Reflex
The aim of this paper is to present methods to calculate pupil size based on various parameters, such as: luminance, age, corneal flux density or monocular/binocular effect.
Napieralski Piotr, Rynkiewicz Filip
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The pupillary light reflex in normal subjects. [PDF]
In 19 normal subjects the pupillary reflex to light was studied over a range of stimulus intensities by infrared electronic pupillography and analysed by a computer technique. Increasing stimulus intensity was associated with an increase in direct light reflex amplitude and maximum rate of constriction and redilatation.
openaire +2 more sources
Postmortem iris recognition and its application in human identification [PDF]
Iris recognition is a validated and non-invasive human identification technology currently implemented for the purposes of surveillance and security (i.e. border control, schools, military).
Sansola, Alora
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Orientation in the diagnosis of intraocular neoplasia, through intraocular fine needle aspiration (IFNA) [PDF]
IFNA is a safe diagnostic technique that allows diagnostic of neoplastic and inflammatory processes of the eye1. In cats melanoma is common in the eye, skin and oral cavity2. In the eyep, local infiltration to systemic metastases may occur2.
Alexandre, N. +3 more
core
Pupil size modulation drives retinal activity in mice and shapes human perception
Retinal adaptation is assisted by the pupil, with pupil contraction and dilation thought to prevent global light changes from triggering neuronal activity in the retina.
Tjasa Lapanja +16 more
doaj +1 more source
Pupillary Light Reflex and Multimodal Imaging in Patients With Central Serous Chorioretinopathy. [PDF]
Zhou X +7 more
europepmc +1 more source
Selective innervation of retinorecipient brainstem nuclei by retinal ganglion cell axons regenerating through peripheral nerve grafts [PDF]
The pattern of axonal regeneration, specificity of reinnervation, and terminal arborization in the brainstem by axotomized retinal ganglion cell axons was studied in rats with peripheral nerve grafts linking the retina with ipsilateral regions of the ...
core
Visual and control aspects of saccadic eye movements [PDF]
Physiological, behavioral, and control investigation of rapid saccadic jump eye movement in ...
Stark, L., Young, L. R., Zuber, B. L.
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