Katharine J Audlin Od posted Eigengrau - Wikipedia Katharine J Audlin Od Lake Hopatcong, NJ:

Eigengrau

Eigengrau ( German : "intrinsic gray", lit. "own gray";
pronounced
[ˈʔaɪ̯gn̩ˌgʁaʊ̯] ), also called Eigenlicht ( Dutch and German: "own light"), dark light, or brain gray, is the uniform dark gray background that many people report seeing in the absence of light . The term Eigenlicht dates back to the nineteenth century, [1] but has rarely been used in recent scientific publications. Nowadays, the phenomenon is…

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