We created realistic facial images of 20 individually distinct hominins with diverse facial morphologies, each face in the (i) humanlike bright sclera and (ii) generalised apelike dark …

People with dark skin can have naturally darkened sclerae, the result of melanin pigmentation. [4] In humans, and some other vertebrates, the whole sclera is white or pale, contrasting with the …

Feb 6, 2023 · AUSTIN, Texas — Long believed to be a uniquely human trait crucial for communication, visible white sclera — the “whites of the eye” — occur more commonly in …

Ocular signs of this disease are present in two out of three patients. Black or bluish pigmented patches may be noted in the sclerae by the fourth decade. The pigmentation is most evident …

During daytime and nighttime conditions, participants were faster at fixating target faces with naturally-colored sclera (white sclera) compared to target faces with modified sclera (sclera …

Previous work found that humans are only 52% accurate in gaze perception when the sclera are darker than the iris (black sclera, white pupil, and white iris ). In contrast, we found that …

Jun 21, 2021 · Humans exhibit an almost complete depigmentation of the sclera and overlying conjunctiva, creating the white of the eye, which contrasts with the darker iris. Beside its …

Jun 17, 2023 · So at one point in history it seems humans developed a white sclera, many great apes have either dark sclera, intermediate or even light colored sclera, but truly white like seen …

Mar 9, 2021 · Our results suggest that depigmented sclera are especially important for gaze perception in faces with dark irises. Because depigmented sclera likely evolved at a time when …

Oct 21, 2016 · Humans don’t have pigmented sclera, suggesting that conspicuous irises that contrast against the rest of the face might be important. One reason may be that in humans …