When we defined what we mean when we talk about , we said that to investigate this topic in babies we used something called a ‘visual cliff’, which is a laboratory device to confirm the depth perception of babies and short-lived animals. age.
In this video you can see how the visual cliff is used:
Fountain: Myers, D. (2006) Psychology, 7th edition, Editorial Médica Panamericana: Madrid
Image: (Flickr)