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  2. Infant visual development - Wikipedia

    en.wikipedia.org/wiki/Infant_visual_development

    The threshold for light sensitivity is much higher in infants compared to adults. From birth, the pupils of an infant remain constricted to limit the amount of entering light. In regards to pupil dimensions, newborns' pupils grow from approximately 2.2 mm to an adult length of 3.3 mm. [ 2 ] A one-month-old infant can detect a light threshold ...

  3. Visual cliff - Wikipedia

    en.wikipedia.org/wiki/Visual_cliff

    A later experiment with kittens raised in the dark and then placed on the visual cliff showed that depth perception was not innate in all species as the kittens would walk on either side of the visual cliff. After six days of being in the light, the kittens would avoid the deep side of the visual cliff (Rodkey, 2015).

  4. Peekaboo - Wikipedia

    en.wikipedia.org/wiki/Peekaboo

    Two children playing peekaboo (1895 painting by Georgios Jakobides). Peekaboo (also spelled peek-a-boo) is a form of play played with an infant.To play, one player hides their face, pops back into the view of the other, and says Peekaboo!, sometimes followed by I see you!

  5. Tenebrism - Wikipedia

    en.wikipedia.org/wiki/Tenebrism

    John the Baptist (John in the Wilderness), by Caravaggio, 1604, in the Nelson-Atkins Museum of Art, Kansas City. Tenebrism, from Italian tenebroso ('dark, gloomy, mysterious'), also occasionally called dramatic illumination, is a style of painting using especially pronounced chiaroscuro, where there are violent contrasts of light and dark, and where darkness becomes a dominating feature of the ...

  6. Chiaroscuro - Wikipedia

    en.wikipedia.org/wiki/Chiaroscuro

    The use of dark subjects dramatically lit by a shaft of light from a single constricted and often unseen source, was a compositional device developed by Ugo da Carpi (c. 1455 – c. 1523), Giovanni Baglione (1566–1643), and Caravaggio (1571–1610), the last of whom was crucial in developing the style of tenebrism, where dramatic chiaroscuro ...

  7. Infant cognitive development - Wikipedia

    en.wikipedia.org/wiki/Infant_cognitive_development

    From birth, babies are learning to communicate. The communication begins with crying and then begins to develop into cooing and babbling. Infants develop their speech by mimicking those around them. Gestures and facial expressions are all part of language development.

  8. Adult interaction with infants - Wikipedia

    en.wikipedia.org/wiki/Adult_interaction_with_infants

    Babycenter.com identifies the following games for adults to play with babies. [6] Copycat: Sticking your tongue out and waiting for them to stick their tongue back in response. They can try other facial expressions such as a smile or laugh. Once the baby is more experienced, one can try things like clapping their hands or waving for the baby to ...

  9. Darkness - Wikipedia

    en.wikipedia.org/wiki/Darkness

    The Creation of Light by Gustave Doré. Darkness is the condition resulting from a lack of illumination, or an absence of visible light.. Human vision is unable to distinguish colors in conditions of very low luminance because the hue-sensitive photoreceptor cells on the retina are inactive when light levels are insufficient, in the range of visual perception referred to as scotopic vision.