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8 Cards in this Set

  • Front
  • Back

What is depth perception?

The ability to distinguish the distance of objects and the spatial relationships of objects.

What are Visual Constancies?

The ability to identify that particular objects stay the same, even when the image on our retinas are different.

Why are infant studies carried out ?

To distinguish whether perception is innate or is a result of learning and environment.

(Nature vs Nurture) : IDA

Which study is used to show the development of depth perception ?

Gibson and Walk

- Invested depth perception in neonates using a visual cliff.

-A piece of glass that gave the illusion of a sheer drop.

- Babies were placed on one side, and called to by their mothers on the other side.

- 92% of babies did not cross.

- Suggests development of depth perception is innate.

Evaluate this study

- Ethical issues - distress

- Baby may not have crossed because it could have been their first time crawling on glass which could put them off.

- When using goats - none crossed.

- Infants were already 6 months old and could have learnt depth perception already.

Which study supports this ?


- Found that babies heart rates were higher on the deep side of the cliif.

- Shows awareness of both sides.

Which study is used the show the development of visual constancies ?

Slater et al.

- Neonates were shown a small or a large cube in a number of trials.

- Two cubes were then presented.

- A larger one further away, and a smaller one closer so they appeared to be the same size.

- All the newborns looked longer at the new cube, because they were used to it.

- Supports the idea that visual constancies are innate.

Why are cross-cultural studies useful ?

Because if differences are found, it shows that perception is due to environment, rather than natural factors.