Deutan colour-vision defects comprise deuteranomaly (anomalous trichromatic colour vision) and the more severe and less common deuteranopia (dichromatic colour vision). Deuteranomaly occurs if a ...

Brian Beers is a digital editor, writer, Emmy-nominated producer, and content expert with 15+ years of experience writing about corporate finance & accounting, fundamental analysis, and investing.

We describe a model of visual processing in which feedback connections from a higher- to a lower-order visual cortical area carry predictions of lower-level neural activities, whereas the feedforward ...

Jared Ecker is a researcher and fact-checker. He possesses over a decade of experience in the Nuclear and National Defense sectors resolving issues on platforms as varied as stealth bombers to UAVs.

Indicator species are living organisms that tell us that something has changed or is going to change in their environment. They can be easily observed, and studying them is considered a cost-effective ...

Follow President Trump’s progress filling over 800 positions, among about 1,300 that require Senate confirmation, in this tracker from The Washington Post and the Partnership for Public Service.