A research team has established an innovative intracranial pre-olivary pretectal nucleus (OPN) optic tract injury model ...

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Study participants wore trackers on their wrists to measure their activity levels and sleep patterns. We found that people exposed to more hours of blue light in the morning had better sleep and more ...

Flash photos typically produce a red reflection in people’s eyes, but sometimes that reflection can appear white or gray, ...

A fellow pupil is suspected to have stabbed him during the morning break, using a penknife brought from home to their school in Finglas, north Dublin, on Tuesday. It followed what police believe ...

Indeed, this reflex is so reliable that doctors use it to assess brain function. If a pupil fails to react to light, it could signal a medical emergency such as a stroke. This reflex is so reliable ...

Behaviourally, qualitative shifts in the perceptual interpretation of an ambiguous image were associated with peaks in pupil diameter, an indirect readout of phasic bursts in neuromodulatory tone. We ...