CHAPTER 4

NOTES AND TEST

 

The Emergence of Language and Thought

 

The Onset of Thinking:  Piaget’s Theory

1.     Basic Principles of Cognitive Development

a.     Thought is always adaptive and organized

b.    Assimilation – experiences are incorporated into existing schemes

c.     Accomodation – schemes have to be modified

d.    Periodically a child’s cognitive structures undergo changes.  The result of these changes are different phases of mental development which begin in infancy and continue through adulthood

 

2.     Sensorimotor thinking

Occurs during the first two years of life.  The schemes are developed through changes in perceptual and motor skills.

 

3.     Preoperational Thinking

a.     Occurs from 2 to 7 years of age.  Thought at this stage is characterized by the use of mental symbols such a language.

b.    Thinking is egocentric,  the child is unable to see the world from another’s point of view.

c.     Children can not reverse mental operations and sometimes confuse appearance with reality.

 

 

4.     Evaluating Piaget’s Theory

a.     His theory has be faulted because children’s performance on task is sometimes explained by ideas that are not part of Piaget’s theory

b.    Children’s performance is not constant from one task to the next, as the theory predicts

c.     Piaget’s account of thinking underemphasizes sociocultural influences

 

Information-Processing During Infancy and Early Childhood

1.     General Information Processing Principles

Mental development involves changes in mental hardware and in mental software

 

2.     Attention

Preschoolers are less able to pay attention to task-relevant information.

 

3.     Memory

a.     Infants are able to remember and can also be reminded of events that seem to have forgotten

b.    Preschoolers are able to remember events they experienced more than a year ago

c.     Common activities that are consisting of events are stored in memory as a script.  d.Eyewitness testimony – when questioned repeatedly preschoolers have trouble distinguishing what they experienced from what other suggest they have experienced.

 

4.     Quantitative Knowledge

a.     Infants are able to disstinguish small quantities, such as one from three

b.    By three years old, children are able to count small set of objects

c.     Learning to count larger numbers involves learning rules about unit and decade name.

 

Mind and Culture:  Vygotsky’s Theory

The Zone of Proximal Development

Vygotsky believed that cognition develops first in a social setting and gradually comes under the child’s independent control.  The zone of proximal development  defines what children can do with assistance and what they can do alone.

1.     Scaffolding

A teaching style in which teachers let children take on more and more of a task as they master the different components

 

2.     Private Speech

When a task is difficult or after they have made a mistake children often talk to themselves.  This is type of speech is one way that children regulate their own behavior, and it represents a step in the transfer of control of thinking from others to the self

 

Language

 

1.     The Road to Speech

a.     Phonemes – basic unit of sound from which words are constructed.  Infants are able to hear phonemes soon after birth.

b.    Caregiver speech – adult’s speech to infants that is slower and has greater variation in pitch and loudness.  Infants prefer caregiver speech, because it provides them with additional language

c.     Newborns in the beginning are limited to crying, but by about 3 months of age they start to coo.  Then babbling follows, and it consists of a single syllable; over time the babbling includes longer syllables and intonation.

 

2.     First Words

a.     Most infants will begin to speak, after their first birthday.  This is the time that infants realize that words are symbols.  Soon, after their vocabulary expands rapidly.

b.    Some children use a referential style that emphasizes words as names and that views language as an intellectual tool

c.     Other children prefer to use an expressive style that emphasizes phrases and that views language as a social tool.

d.    Children’s vocabulary is stimulated by experience.  It is very important to actively involve children in language related activities.

 

3.     Speaking in Sentences

a.     Soon after children begin to speak, they start to use two-word sentences that are derived from their own experiences.  This movement from two-word sentences to more complex ones involves adding grammatical morphemes.  The first grammatical morphemes express simple relations.  Mastery of grammatical morphemes involves learning rules as well as the exceptions to the rules.

b.    Some linguists claim that grammar is too complex to learn only from experiences, and the brain must be pre-wired to simplify the task.  However, language experience is very important and parent’s speech serves as a model for their children.

 

4.     Communicating with Others

a.     Parents should encourage turn-taking even before their child starts to talk.  By age 3, children start to spontaneously take turns.

b.    Preschool age children start to adjust their speech to fit the listener’s needs.