Baillargeon’s explanation of infant abilities CD Flashcards
Knowledge of the physical world
Refers to our understanding of how the physical world works
Violation of expectation research
a method used to investigate infant knowledge of the world
What did Baillargeon suggest about babies understanding of the physcical world?
young babies had a better understanding of the physical world than Piaget expected.
What did Baillargeon propose?
the lack of understanding of object permanence could be explained differently. E.g. Young babies might lack the necessary motor skills to try and find the hidden object, or they may lose interest as they are easily distracted.
What is the violation of expectation VOE method used to test?
object permanence
Procedure → Baillargeon and Graber
- 24 babies aged 5-6 months
- Tall and short rabbit passed behind a screen with a window
- In familiarisation event, baby is shown short and tall rabbits disappearing as they pass the screen (fits our expectations)
- test events occur
- Baby with object permanence will show surprise at unexpected event
In test events there are 2 conditions?
Baillargeon and Graber
- Short rabbit passes screen with window but cant be seen because its too short → expected event
- Tall rabbit passes through screen with a window but cannot be seen → unexpected event
FIndings to Baillargeon and Grabers study
- Babies looked at unexpected event for average of 33.07s compared to expected event of 25.11s
- Interpreted this as babies must have been surprised
- For surprised behaviour, babies must have understood how the tall bunny must have been seen
- Demonstrating good object permanence
What key word can be used to describe Baillargeon and Grabers study?
This study can be described as an occlusion study, in which one object is in front of another.
Other studies
- VOE has been used to test containment and support
- In all of these cases infants have shown to pay more attention the the unexpected events
- Thus appearing to have a good understanding of the world (Hespos and Baillargeon)
Containment
when an object is seen to enter a container it should still be there when the container is opened
support
an object should fall when unsupported but not when it is on a horizontal surface
Baillargeon’s theory of infant physical reasoning
Humans are born with a physical reasoning system PRS, which is the idea that we are hardwired with both a basic understanding of the world and also the ability to learn more details easily.
* Initially we have primitive awareness of the physical properties of the world eg object permanence
Development continues as follows:
In the first few weeks of a baby’s life they begin to identify event categories, which each correspond to one way in which objects interact. This explains why the unexpected events capture the baby’s attention as the nature of the PRS means they are predisposed to pay attention to new events that might allow them to develop their understanding of the physical world.
Validity of violation of expectation
strength
- VOE fills a gap in Piaget’s research in object permanence as simple ‘distraction’ would not affect the outcome of the study
- The only thing the VOE measures is how long the baby looks at a visual scene
Greater validity than Piaget’s because a confounding variable is controlled
counterpoint to validity of VOE
limitation
- Piaget pointed out that acting in accordance with a principle is not the same as understanding it → Bremner
- Even if babies decide to pay more attention to one thing that another, it does not mean that they understand it
- Understanding means it would be thought about consciously and applied reasoning
May not represent change in babies cognitive abilities
universal understanding
strength
- Hespos and Marle pin tout that we have very good understanding of the basic characteristics of the physical world
- Eg everyone understands gravity
- Does not require past experience
- Universal understanding suggests that a basic understanding of the world is innate
Suggests that PRS is correct
may not be object permenance
limitation
- Piaget suggested that babies respond to unexpected events but this does not mean they understand it
- Babies response may not even be to the unexpectedness of the event
- VOE only shows that babies find certain events more interesting
- The link between this and object permanence has been inferred
VOE method is not an entirely valid way to study a very young child’s understanding of the physical world