3'1 Physical, Perceptual, and Language Development - PowerPoint PPT Presentation

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3'1 Physical, Perceptual, and Language Development

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Grasping reflex: an infant's clinging response to a touch on the palm of his or her hand. ... Chimps use words as symbols but cannot apply grammatical rules. Genie ... – PowerPoint PPT presentation

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Title: 3'1 Physical, Perceptual, and Language Development


1
3.1 Physical, Perceptual, and Language Development
  • Developmental Psychology the study of
    changes that occur as an individual matures.

2
I. Newborns
  • Grasping reflex an infants clinging response to
    a touch on the palm of his or her hand.
  • Rooting Reflex an infants response in turning
    toward the source of touching that occurs
    anywhere around his or her mouth.

3
II. Physical Development
  • 95 of infants are between 5.5 and 10 pounds and
    are 18-22 inches in length.
  • Maturation the internally programmed growth of a
    child.

4
III. Perceptual Development
  • 3 or 4 month old infants show a strong preference
    for faces and patterns, suggesting that infants
    are born with and develop visual preferences.
  • Visual Cliff

5
IV. Language
  • 1 year Babbling begins and increases. Usually
    says his or her first word like baba or mama.
    Babbles begin to sound more like the langauge
    they are brought up in.
  • 2 years Begins to speak in paired words. No
    ball.
  • 3 years acquires more grammatical knowledge.
    Average size of vocabulary over 5000 words.
  • 4 years more grammatical rules. EX Why is Jenny
    crying? Average vocabulary about 9000 words.

6
Animal and Language
  • Chimps Can acquire language skill equivalent to
    that of a two year old. The can learn ASL.
    Washoe by age 5, knew more than 160 signs.
    Chimps use words as symbols but cannot apply
    grammatical rules.

7
Genie
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