Object & physical, Social and Conceptual knowledge Flashcards
Define specialised learning mechanisms
Mechanisms which enable infants to acquire knowledge rapidly and efficiently in some domains
What term is used to describe the type of mechanisms which enable infants to acquire knowledge rapidly and efficiently in some domains?
Specialised learning mechanisms
Define general learning mechanisms
Mechanisms that gradually strengthen infants’ mental representations of the world
What is the term used to describe the type of mechanisms that gradually strengthen infants’ mental representations of the world?
General learning representations
List the factors affecting whether children
make the A-not-B error
1) Age of the child
2) Length of delay
3) Number of hiding locations
4) Number of times the object was hidden in location A
How does the number of times the object was hidden in location A affect the A-Not-B error?
When an object is hidden under location A many many times, the infant develops some sort of memory of the object being hidden there.
This creates a habit of reaching towards location A even when the object is hidden at location B
Because the object is hidden at location B less often than it was hidden at location A, the infant has a weaker memory of the object hidden in location B and is less likely to search in location B
Who proposed early evidence for object permanence?
Hood and Willatts
What makes infants perform better at the A-Not-B task?
If we test them via visual attention measures (how long they take to look at where the object is hidden) rather than tests that require them to take action
Describe Hood and Willatts’ test for object permanence
1) 5-month-olds are shown an object to the left/right
2) The lights switch off
3) Infant reaches to where they last saw the object
What do the results of Hood and Willatts’ test for object permanence suggest about infants’ object permanence?
Young infants (before 8 months as how Piaget claimed) are in fact able to mentally represent and think about the existence of invisible objects and events
Describe the violation-of-expectancy procedure
When infants are shown an event that should evoke surprise or interest if it violates something that the infant knows or assumes to be true
Who proposed the violation of expectancy procedure?
Baillargeon (1987)
Which test involved presenting infants with an event which evoked surprise or interest if it goes against something the infant knows or assumes to be true?
Violation of expectancy procedure
What did Baillargeon do in her violation of expectancy experiment?
1) Presented infants 3½ months of age with a screen rotating back and forth at 180 degree
2) Infants habituate to the screen rotating back and forth after seeing it multiple times
3) A box is then placed behind the screen which blocks the movement of the screen
4) Infant does not seem surprised or intrigued
5) But the box was placed again except this time, the screen moves back and forth
6) Infant looked longer at this and showed interest (because how can the screen still moves back and forth when there is a box “blocking” it?)
What do the results of Baillargeon’s violation of expectancy experiment suggest?
The infants mentally represented the box (understood object permanence) even when it was occluded and were surprised when the screen seemed to pass through the box
Why do children show object permanence with a VoE procedure, but not A-not-B task? List 3 possible reasons.
1) memory limitations
- infants could’ve forgotten that the object was hidden under location B because they were only shown it once relative to the number of times the object was hidden under location A
2) problems with inhibitory control associated with immaturity of the prefrontal cortex
- prefrontal cortex influences attention
- if the prefrontal cortex is immature, infants have really short attention spans and may not have paid attention when the object was hidden under location B
3) competition between a representational system and a response system
- even if they understand that the object has moved (mental imagery of object permanence), they will still continue to look in the same place (reaching to location A becomes a habit, automatic)
When does knowledge of gravity begin in infants?
In the first year
How do you know that infants are aware of the concept of gravity?
If infants seem surprised or stare intently/longer when objects violate expected motion trajectories
e.g. 7-month-olds are surprised to see a
ball roll up a slope without anything pulling or helping it up (Kim & Spelke, 1992)
7-month-olds are surprised to see a
ball roll up a slope without anything pulling or helping it up (Kim & Spelke, 1992)
What does this tell us about the infant?
They have knowledge of gravity
When does knowledge of support relations begin in infants?
Between 3 months - 12 1/2 months
How do you know that infants are aware of the concept of support relations?
If infants seem surprised or stare intently/longer when objects violate expectations of what physical support the infants believe are possible
Describe Baillargeon’s experiment testing for understanding of support relations
Infants were presented with a box and a support (a 2nd box)
1) At 3 months
- Infants look longer if the box remains in the air without the help of the support
2) At 5 months
- Infants look longer if the box does not fall when it is at the side of the support rather than on top
3) At 6.5 months
- Infants look longer if the box remains steady with only a small amount of contact with the support
4). At 125 months
- Infants look longer if the box is an asymmetrical object which remains stable on a support that’s much smaller
What happens at 5 months according to Baillargeon’s experiment testing for the understanding of support relations?
An infant understands that in order for a box to remain stable, it must make contact with the support
An infant looks longer if the box makes contact with the support sideways rather than on top and does not fall
What happens at 125 months according to Baillargeon’s experiment testing for the understanding of support relations?
An infant looks longer if an asymmetric object does not fall despite a substantial part of it being above and in contact with the support
What happens at 3 months according to Baillargeon’s experiment testing for the understanding of support relations?
An infant looks longer if the box is not in contact with the support and does not fall
What happens at 6.5 months according to Baillargeon’s experiment testing for the understanding of support relations?
An infant looks longer if only a small portion of the box makes contact with the support and does not fall
Define social knowledge
- Knowledge about people and their behaviour
- Distinguishing animate and inanimate entities
- Knowing that the behaviour of others is purposeful and goal-directed
Who thought of the experiment which involves infants who see a human arm repeatedly reach for an object in the same location assume that the action is directed toward the object, not the place?
(Woodward, 1998)
What did Woodward discover in his experiment to test for understanding of intentions in infants?
1) Infants who see a human arm repeatedly reach for an object in the same location assume that the action is directed toward the object, not the place
2) When the object is swapped with another object in the opposite location and the arm reaches for the 2nd object in the previous location, the infant was surprised
3) 6-month olds looked longer when the hand went to the new object in the old place rather than the old object in the new place
What was the experiment performed to test for knowledge on attributing dispositional states?
Kuhlmeier et al.
Infants watched a film that adults interpret as a ball “trying and failing” to get up a hill as it is being “helped” by a triangle and being “blocked” by a square
Infants looking behaviour indicated that they expected the ball to approach the “helpful” triangle while avoiding the “hindering” square