1Piaget's theory of cognitive development theory points
Schema
Child = scientist
Motivation to learn
Assimilation
Accommodation
Biological maturation
2Define schema
Mental framework of beliefs and expectations that influence cognitive processing
Developed from experience and learning
3Why is the child seen as a scientist?
Learn by interacting with the environment
4What does Piaget suggests motivates us to learn?
When we are in disequilibrium (existing schemas can't explain something new)
We adapt our knowledge to enter equilibrium
5Define assimilation
Add new info to existing schema
6Define accommodation
Radically modify existing schema or form new ones
7Define biological maturation
Depending on age, we are capable of different cognitive skills
8Piaget cognitive development eval points
+ Evidence for discovery learning
+ Application to education
- Chinese teaching
- Underestimated role of others
- Overemphasised disequilibrium
9Evidence for discovery learning (Piaget eval)
Howe
Groups of 4
9-12y
Investigate how objects move down a slope
All showed improved understanding and cam to their own conclusions
10Application to education (Piaget eval)
Less copying and dictated teaching
Activity orientated so children explore the curriculum
- Chinese students 50+ and dictated with low discovery but achieve highly
11Underestimated role of others (Piaget eval)
Vygotsky
MKO
Piaget suggest learning is an individual process
Implies teachers are useless
12Overemphasised disequilibrium (Piaget eval)
Piaget sample = clever middle class
Deci + Ryan suggest equilibrium and feeling competent leads to motivation to learn
13Piaget's stages of development and ages
Sensorimotor = 0-2y
Pre-operational = 2-7y
Concrete operational = 7-11y
Formal operation = 11y+
14Sensorimotor
Object permanence @8m - objects still exist when out of sight
Learn via circular reactions - repeat to test sensorimotor relationships
15Pre-operational
Egocentric
No conservation
No class inclusion
16Define conservation
Knowledge that quantity remains the same even when the appearance of an object changes
17Define class inclusion
Recognising classes of objects have subsets and are subsets of larger classes
18Who researched class inclusion and what did they do?
Piaget and Inhelder
"Are there more dogs than animals?"
5 dogs and 2 cats
19Concrete operational
Conservation
Decentration
Class inclusion
20Formal operational
Formal reasoning
Hypothetico deductive thinking
Abstract logic
21Evaluate Piaget stages of development
+ Application to school curriculum
- Autism
+ Egocentricity support
- Hughes' policeman doll study
- Underestimated object permanence
- Underestimated conservation
22Application to school curriculum (Piaget stages eval)
Based on age
- Autistic develop language, reasoning and egocentrism separately
23Egocentricity support (Piaget stages eval)
Piaget and Inhelder
Only 7/8y complete 3 mountain task
- Hughes' policeman doll study found 90% pre-schoolers could do it
24Underestimated object permanence (Piaget stages eval)
Bower
4m surprised when toy hidden behind screen no longer there when screen removed
25Underestimated conservation (Piaget stages eval)
McGarrigle and Donaldson
Naughty Teddy study
62% 6y showed conservation
Compared to 16% in Piaget study
26Vygostky key theory points
Knowledge is intermental then intramental
Cultural differences
MKO
Zone of proximal development
Scaffolding
27How does culture affect development?
What we learn depends on our culture because of MKOs etc.
28Define zone of proximal development
Space between present level of development and potential level of development
29Who investigated scaffolding and when?
Wood, Bruner and Ross (1976)
305 parts to scaffolding
General prompt
Specific verbal instruction
Indication of materials
Preparation for child
Demonstration
31Vygotsky evals
+ Culture support
+ MKO evidence
+ Scaffolding evidence
- Chinese teaching
- Low generalisability
32Culture support (Vygotsky eval)
Gredler
Papua New Guinea children count 1-29 using body
Adults struggle with large numbers
33MKO evidence (Vygotsky eval)
Roazi and Bryant
4-5y estimate no. sweets in jar
Increased accuracy when given prompts by older student
34Scaffolding evidence (Vygotsky eval)
Vankeer and Verhaege
7y tutored by 10y and classroom teaching = more reading progress than control
- Chinese teaching = 50+ students and low interaction
35Low generalisability (Vygotsky eval)
Only applies to collectivism
Counter with Piaget
36Baillargeon key theory points
Criticism of Piaget object permanence (babies struggle to lift heads)
Violation of expectation
Experiment
Infant physical reasoning
37What was the experiment into violation of expectation?
Baillargeon and Graber 1987
24 babies
5-6m
Familiarisation event
Then expected and then unexpected (big bunny not seen in screen)
Looked 7.96s longer at unexpected (OP)
38What are the different aspects of infant physical reasoning?
Physical reasoning system
Object persistence
Event categories developed
39What is a physical reasoning system?
Innate ability to learn
40Define object persistence
Object remains in existence and doesn't spontaneously change shape
41Define event categories
Ways in which object interact (occlusion)
42Baillargeon evals
+ High control
+ Physical reasoning system support
- Low internal validity
- Support Piaget
43High control (Baillargeon eval)
Children on parent's knees
Parents blindfolded
2 observers who didn't know design
Double blind
44Physical reasoning system support (Baillargeon eval)
All infants = good understanding of object properties regardless of culture
45Low internal validity (Baillargeon eval)
Don't know how babies react to violation of expectation
Looked longer at big rabbit because it's more interesting
46Supports Piaget (Baillargeon eval)
Surprise doesn't equal object permanence
Bremner = difference between acting and understanding in accordance with a principle
47Who investigated perspective taking?
Selman
48Selman perspective taking key theory points
Disagrees with Piaget
Selman (1971)
Stages of development
49Why does Selman disagree with Piaget?
Disagrees with domain general approach
Perspective taking doesn't happen at same time as cognition and language
50What did Selman do in 1971?
60pps
4-6y
Asked about perspective situation
Holly, tree, cat etc.
51What are the name and ages for stages of perspective taking
Egocentric = 3-6y
Social informational = 6-8y
Self reflective = 8-10y
Mutual = 10-12y
Social and conventional systems = 12y+
52Egocentric (Selman stages)
Recognise self and others have different thoughts and feelings
Frequently confuse the 2
53Social informational (Selman stages)
Understand different perspectives are due to access to different info
54Self reflective (Selman stages)
Fully understand other's perspectives
Know that others can do the same
55Mutual (Selman stages)
Look at situation from own and other's perspective at same time
56Social and conventional system (Selman stages)
Understanding other's viewpoints is not enough to reach agreement
Social conventions needed to keep order
57Selma evals
+ Support for stages
+ Support for importance of perspective taking
- Ignores social factors
- Cultural differences
58Support for stages (Selman eval)
Selman
+ive correlation for age and perspective
Gurucharri and Selman
Same Correlation for longitudinal study
59Support for importance of perspective taking (Selman eval)
Buijzen and Valkenburg
-ive correlation between age/perspective and coercive behaviour
Child persuades parent to buy something
Link between perspective and healthy social behaviour
60Ignores social factors (Selman eval)
Fitzgerald and White
More growth in perspective when parents encourage child to take perspective of someone they hurt
Empathy and family important
61Cultural differences (Selman eval)
Wu and Kysar
American and Chinese children
Chinese more advanced perspective
Selman suggested it was universal
62Define ToM
Personal understanding of what other ppl are thinking and feeling
63Theory of mind (ToM) key points
ASD
Meltzoff 1988
Sally Anne 1985 - Baron Cohen
Eye task 1997 - Baron Cohen
64Define ASD
Impairments in Empathy, social communication and social imagination
65What did Meltzoff do in 1988?
A = adult tries to open jar to add beads
B = adult opens jar and adds beads
18m added beads in both conditions
Understood intentions
66What did Baron Cohen do in 1985?
Sally Anne task
20 = ASD
14 = Downs Syndrome
ASD = 20%
DS = 85%
ToM déficit explains ASD
67What did Baron Cohen do in 1997?
Eye task
Compare eye pics to emotions
Non ASD accuracy = 20.3
ASD = 16.3
Suggests bio basis for ASD
68ToM evals
+ Application to understanding ASD
- Not all ASD have ToM issues and some non ASD have ToM issues
- Relies on Sally Anne task
- Low eco validity
- Perspective taking is not ToM
69Application to understanding ASD (ToM eval)
Sally Anne task may explain ASD
Provides explanation for difficulty in social communication
- Not all ASD have ToM issues and some non ASD have ToM issues
70Relies on Sally Anne task (ToM eval)
Bloom and German = False belief tasks have low validity
Some children can role play but not SAT
SAT tests visual memory, not ToM
71Low eco validity (ToM eval)
No mouths / body language
72Perspective taking does not mean Tom (ToM eval)
Switching perspective = see from another viewpoint
ToM= understanding why perspective is different
Separate cognitive abilities
73Mirror neurons key theory
Rizzolatti
Gallese and Goldman 1998
Evolution - Ramachandran 2011
Autism - Ramachandran and Oberman 2006
Broken mirror theory
74How were mirror neurons discovered?
Rizzolatti
Electrical in monkey motor cortex increased when reaching for something
Same when watching someone else reach for something
75What did Gallese and Goldman say about mirror neurons?
1998
MN respond to observed actions and to intentions behind behaviour
Involved in perspective and ToM
76What did Ramachandran say about evolution?
2011
Humans need to be able to understand other's intentions, emotions and perspectives to be able to live in large groups
77What did Ramachandran and Oberman say about ASD?
2006
Broken mirror theory
78What is broken mirror theory?
Neurological deficits in MN system prevent child imitating and understanding social behaviour in others
Causes difficulty in social communication
79MN evals
+ Supprt
+ Explains ASD
- ASD MN link is inconsistent
+ Support for MN perspective link
- weak evidence
- Hard to research
80Support (MN eval)
Haker
Increased activity in Brodmann's Area 9 when yawning in response to yawns
BA9 = high MN
Yawning linked to empathy
81Explains ASD (MN eval)
Hadjikhani
Evidence for link between ASD and MN dysfunction
Reduced thickness of pars opercularis
PO = high MN
- Hamilton. Systematic review of 25 studies found ASD MN link inconsistent
82MN perspective link supported (MN eval)
Maranesi
MN in motor cortex fired according to position and angle of experimenters gesture
Physical perspective
- Bekkali. MN Social cognition link only has weak evidence
83Hard to research (MN eval)
Scanning measures brain areas and not individual neurons
Implanted electrodes useful but unethical for humans