Machine learning & AI

New deep learning model can accurately identify sleep stages

A new deep learning model developed by researchers at the University of Eastern Finland can identify sleep stages as accurately as an experienced physician. This opens up new avenues for the diagnostics and treatment of sleep ...

Consumer & Gadgets

New tech addresses augmented reality's privacy problem

An emergency room doctor using augmented reality could save precious seconds by quickly checking a patient's vitals or records. But the doctor could also unintentionally pull information for someone else in the room, breaching ...

Robotics

Women are less likely to trust robots who stare at them

Research by Dr Chris Stanton, a roboticist at the MARCS Institute for Brain, Behaviour and Development, (Western Sydney University) investigated if the same physical elements that made humans trust one another could be applied ...

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Eye

Eyes are organs that detect light, and send signals along the optic nerve to the visual and other areas of the brain[citation needed]. Complex optical systems with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system. Image-resolving eyes are present in cnidaria, molluscs, chordates, annelids and arthropods.

The simplest "eyes", such as those in unicellular organisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms. From more complex eyes, retinal photosensitive ganglion cells send signals along the retinohypothalamic tract to the suprachiasmatic nuclei to effect circadian adjustment.

This text uses material from Wikipedia, licensed under CC BY-SA