Language Acquisition The Development of Children (5 th ed.) Cole, Cole & Lightfoot Chapter 8.
The End of Infancy Chapter 6 The Development of Children (5 th ed.) Cole, Cole & Lightfoot.
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Transcript of The End of Infancy Chapter 6 The Development of Children (5 th ed.) Cole, Cole & Lightfoot.
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The End of Infancy
Chapter 6
The Development of Children (5th ed.)
Cole, Cole & Lightfoot
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Overview of the Journey
Biological Maturation Perceptual-Motor
Coordination New Modes
of Thought Child-Caregiver
Relations A New Sense of Self The End of Infancy
Biological Maturation Perceptual-Motor
Coordination New Modes
of Thought Child-Caregiver
Relations A New Sense of Self The End of Infancy
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Biological Maturation Rate of growth is slower
than during the first year Height: 29 38 inches
Weight: 20 33 lbs. Accelerated myelination
Within cerebral cortex and between brain stem and cortex Leads to new self-awareness, emotional responses, better problem solving, voluntary control of behavior,
enhanced analysis of visual and auditory input, and language acquisition Neuron branching close to adult magnitudes
Each neuron has multiple connections with others, usually numbering in the thousands
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Perceptual-Motor Coordination
Locomotion
Manual dexterity
Control of elimination
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Perceptual Motor: Locomotion
Walking by about 12 months old: Development, integration, coordination and practice Upright posture and Leg alternation
Weight shifting and Sense of balance Enhanced ability to perceive conditions
in the environment
Experience crawling up down slopes does not seem to carry over to walking.
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Increasing Ability due to practice and experience
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Perceptual Motor: Fine Motor Skill
Coordination and movement increases significantly from 12 to 30 months Throw a ball, turn pages
of a book, string beads Snip paper with
scissors, build a 6 block tower
Hold a cup of liquid without spilling
Dress themselves (but not buttons or laces)
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Perceptual Motor: Control of EliminationRequirements
Must be ready, willing and able Sensory pathways from
bladder and bowels must mature enough to transmit signals to the cortex
Learn to associate signals with need to eliminate
Learn to tighten sphincters to prevent elimination, and loosen them to permit it
Toilet training Toddler learns to eliminate when placed on the potty Can stay dry during the day by the age of 2 (with adult watchfulness) Do not typically stay dry at night until the age of 4
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New Modes of ThoughtSymbolic Representation
Object Permanence
Pretend Play
Ability to Categorize
Pictures and Models
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Evidence of Symbolic Representation
Imagines an object not physically present Shown by systematic search for hidden objects
Systematic problem-solving Trial and error to reach a goal
Begins imaginary play Imitates events after they have
occurred Understands visual models Begins to draw Begins imitation of writing Begins to “read” familiar stories
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Object Permanence: Substage 5
12 - 18 months old
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Mastery of Object Permanence
Substage 6 (18-24 months) “Well it wasn’t where I expected it to be, but it must be
here somewhere.” Able to anticipate the trajectory of a moving object that
has disappeared behind a barrier Pictures a series of events in her mind before acting
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Pretend or Symbolic Play Toward end of 2nd year, “imitate” actions that adults do Ability to represent the mental states of other people One object stands for another (banana for a telephone) Children perform actions more advanced than what they can do on their
own Lasts longer and is more sophisticated with mother or older sibling than
when alone
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Ability to Categorize 18 months: Create a small
workspace in front of them and put 2 or 3 objects of the same kind in it
24 months: Divide objects into two distinct categories, working on one category at a time
30 months: Simultaneously work on two major categories and create sub-categories in which the objects are grouped according to color as well
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Pictures and Models
2 years: Can rarely use pictorial information to find an object hidden in the room
2 ½ years: Can use a picture, but not a model of the room to find the object
3 years: Can use the model as a representation of the room to find the hidden object
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Development ofChild-Caregiver Relations
AttachmentAttachment
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Attachment An emotional bond most prominent in infants from 6-18 months of age,
evidenced by separation anxiety
Explanations
Erikson: Become attached to people who reliably attend to their needs and who otherwise foster a sense of trust
Bowlby: Provides a balance between an infant’s need for safety and a variety of learning experiences
Mary Ainsworth: Research on the “strange
situation”
Three Types of Attachment Secure
Anxious/avoidant Anxious/resistant
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Types of Attachment Secure
Child reacts positively to a stranger as long as mother is present Becomes upset when mother leaves and is unlikely to be
consoled by a stranger Calms down as soon as mother reappears
Anxious/avoidant Child is indifferent to where mother is sitting May or may not cry when mother leaves Is as likely to be comforted by a stranger as by mother Is indifferent when mother returns
Anxious/resistant Child stays close to mother and appears anxious even when
mother is near Becomes very upset when mother leaves but is not comforted
by her return Simultaneously seeks renewed contact with mother and resists
her efforts to comfort
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Harlow’s Monkeys The cloth mother, which does
not provide nourishment, is seen as a secure base
The wire mother, which does provide nourishment, is not seen as a secure base
This contradicts drive-reduction theories of attachment by Freud, that children are attached to mother because she provides food
Soothing tactile sensations provide a baby with a sense of security that is more important to the formation of attachment than food
Social interactions seem to be necessary for healthy emotional development
Harlow, 1959
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Causes of Variation in Patterns of Attachment
Parental behaviors Mothers’ sensitivity to their infants’ signals of need seems
to be related to higher levels of secure attachment Characteristics of the child
Infants who had spent more time playing with objects than interacting sociably with their mothers were more likely to display signs of insecure attachment later on
Family influences Maternal depression and marital discord appear to be
related to lower levels of secure attachment Cultural influences
Children who slept at home displayed a significantly higher level of secure attachments
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Developing a Sense of Self
Self-recognition
Secondary emotions
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Self-Recognition 3 months: Little interest at all 4 months: Reach out and touch mirror image 10 months: Reach behind them if a toy is slowly lowered
behind their back while they are looking in the mirror 18 months: Will reach for their own nose when they see the
red spot on it; when asked, “Who’s that?” will answer “Me” 18-24 months (begins 2-word utterances) “I do it!” “Becky all done” 24 months old Upset if something is missing or dirty “Yucky” & “Fix it” Goal to use all available blocks or put every doll into
baby carriage Actively seeks adult help in reaching goals and
standards
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Primary & Secondary Emotions
By 12 months - primary Joy, fear, anger, surprise, sadness,
disgust By 24 months - secondary
Embarrassment, pride, shame, guilt, envy, etc. (e.g., self-satisfied smile, hang head, cover face, try to hide) depends on toddler’s new abilities
to recognize, talk about, and think about themselves in relation to other people or in terms of a rule or desired goal
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The 24-month-old’s Bio-Social-Behavioral Shift
Biological Myelination of connections among brain areas Leveling off of brain growth Maturation of brain areas in roughly equal degrees
Social No longer showing signs of distress at separation Distinctive sense of self Emerging acceptance of adult standards and rules Emergence and display of secondary emotions
Behavioral Walking becomes more coordinated Fine motor skill enables infant to pick up small objects Emerging control over bladder and bowels More complex and planned problem solving Symbolic play with expression of basic words & phrases Symbolic representations and complex categorization Smile when child experiences mastery