Human Growth and Development / Unit 3 HGD 0340 short lesson, about 20 seconds
Depth Perception
Captions available
The idea
Depth perception is absent at birth; it begins around two months with binocular vision, and cues from pictures are used by about six months.
In practice
A two-month-old's eyes starting to work together to judge distance.
Where people slip
Depth sensitivity grows with experience of moving; infants who crawl or walk are more sensitive to drops.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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