CH 6: Cognition in Infants and Toddlers Flashcards
Schemas
psychological structures that organize experience through mental categories and conceptual models of knowledge
- build as they gain experience with situations, people and objects around them
- sometimes lead to functional fixidness (stuck in a rut of thinking)
- don’t notice things that don’t fit in our schemas
- takes a while to organize in infancy
Basic Principles of Piaget’s Theory
• Children construct their understanding of the world by creating schemas
- change constrantly
- infants’ schemas based on actions
> need to learn that they can move their bodies and control how those movements occur
- older children’s and adolescents’ schemas are based on functional, conceptual and abstract properties
i.e. math formulas
• Assimilation
• Accommodation
Piaget’s Sensorimotor Stage
0-2 years
Infant’s knowledge of the world is based on senses and motor skills
- infant progresses from developing schemas based on simple, reflex actions to symbolic processing of orderly sequence
• six substages
• by 8-12 months, one sensorimotor schema is used in the service of another
• by 8-12 months, infants experiment with sensorimotor schemas
• 18-24 months, infants begin to engage in symbolic processing
Evaluating Piaget’s Account of Sensorimotor Thought
• Children’s performance on tasks, such as object permanence, is sometimes better explained by ideas that are not part of Piaget’s theory
- infants who are unsuccessful in an object permanence task might be showing poor memory rather than inadequate understanding of the nature of objects
- other investigators have shown that babies understand objects much earlier than Piaget claimed
> shows that theory needs some revision to include important constructs that Piaget overlooked
• Children do what Piaget said they would do, but much more is happening in their brain than he said did
• Child moves through the four stages of cognitive development much faster than Piaget thought
Current view of child cognition
Children are specialists who generate naive theories in particular domains, such as physics and biology
Basic Features of the Information-Processing Approach
Cognitive development involves changes in mental hardware and mental software
• People and computers are both symbol processors.
• Hardware: sensory, working, and long-term memory.
• Software is task specific.
• Neo-Piagetian approach
Mental Hardware
Mental Hardware includes sensory, working and long-term memory
i.e. procedural, semantic and autobiographical or episodic memory
Mental Software
Mental Software refers to mental programs that allow people to perform specific tasks
Learning
- as stimulus becomes more familiar, infants habituate or respond to it less
- infants are capable of learning through classical conditioning, operant conditioning, and imitation
Memory
Studies of kicking show that infants can remember, forget, and be reminded of events that occurred in the past
• Young babies remember events for days and weeks.
• Babies forget events over time.
• Infantile amnesia
Infantile Amnesia
Children’s and adult’s inability to remember events from early in life
• infantile amnesia might reflect the acquisition of language, infants’ lack of an organized sense of self, or culture differences relating to sense of self and elaborative memory talk
Infants Understanding the World
• Infants can distinguish quantities probably by means of basic perceptual processes
• By 12 months, infants are more likely to know positions of objects relative to other objects (objective frame of reference)
- Infants have an egocentric frame of reference but will develop and objective frame of reference later.
Infant Intelligence Tests
• Individual differences are measured in mental tests for infants and toddlers.
- Bayley Scales of Infant Development
- Infant intelligence tests include mental and motor scales
- Scores on infant intelligence tests are not highly correlated with adult IQ
- Useful for determining whether development is progressing normally
- Habituation predicts later IQ more accurately than infant intelligence tests
Perceiving Speech
• phonemes
• before they speak, infants can recognize words by noticing stress and syllables that go together
• early speech sound detection leads to development of a vocabulary, which supports later literacy
• infants prefer infant-directed speech because it provides them with important language clues
- may help children learn language
• infants also pay attention to linguistic stress to decipher begin and end of conversation
Phonemes
basic units of sound that make up words
• infants can hear phonemes from foreign languages, but this ability is lost by their first birthday
First Words
Onset of language is due to a child’s ability to interpret and use symbols.
• children’s first words represent a cognitive accomplishment that is not specific to language but extends to other areas, including gestures
• the onset of language is due to a child’s ability to interpret and use symbols
• symbols represent actions and objects
- gestures are symbols that children start to use around the time they begin to talk.
First Steps to Speaking
- babies coo at about 3 months, followed by babbling of a single syllable
- 5 or 6 months - babbling turns into loner syllables and develops intonation over several months (around 7 or 8 months)
- deaf children babble later than children with normal hearing, but they make partial signs that are thought to be analogous with babbling
Fast Mapping Meanings to Words
• Children experience a naming explosion around 18 months of age, rapidly acquiring new words.
• children use several fast-mappings of new words
- joint attention
- constraints on word names
- sentence cues
• fast-mapping rules don’t always lead to correct word meanings
• underextension and overextension
Underextension
occurs when a child’s meaning of a word is narrower than an adult’s meaning
i.e. only Snoopy is a dog
Overextension
occurs when a child’s meaning of a word is broader than an adult’s meaning
i.e. all four-legged animals are dogs
Referential Style
a child’s initial tendency to learn primarily words that name objects, persons, or actions instead of social phrases
- uses language as an intellectual tool
i. e. cat, tree, book
Expressive Style
a child’s initial tendency to learn primarily social phrases in language rather than naming objects
- uses language as a social tool
i. e. “what’s that?”
Assimilation
cognitively incorporating new experiences into existing schemas
- children find they can readily assimilate most experiences into their existing schemas, but occasionally they need to accommodate their schemas to adjust to new experiences
Accommodation
Cognitive modification of schemas as a result of experience
- when becomes more frequent than assimilation, children reorganize their schemas, produces four different stages of mental development from uinfancy through adulthood
Equilibration
Piaget
The process of reorganizing schemas to incorporate new info or experience
• returning to equilibrium between assimilation and accommodation
- outmoded ways of thinking are replaced by quantitively different, more advanced schemas
• Piaget thought this caused children to move to the next stage of thinking
Piaget’s Four Stages of Cognitive Development
(1) Sensorimotor
(2) Preoperational thought
(3) Concrete operational thought
(4) Formal operational thought
- believed that revolutionary changes in though occur three times over the lifespan (stage 2-4)
Preoperational Thought
2-6 years
Child learns how to use symbols, such as words and numbers, to represent aspects of the world
Concrete Operational Thought
7-11 years
Child understands and applies logical operations to experiences
Formal Operational Thought
Adolescence and beyond
Adolescent or adult thinks abstractly
Piagetian Sensorimotor Stage: Substages
(1) Exercising Reflexes
(2) Learning to Adapt
(3) Making Interesting Events
(4) Using Means to Achieve Ends
(5) Experimenting
(6) Mental Representation