Ch. 5 Flashcards

(45 cards)

1
Q

dynamic systems theory

A

a theory proposed by Esther Thelen

-seeks to explain how motor behavior are assembled for perceiving and acting

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2
Q

reflexes

A

involuntary movements or responses to actions, spontaneous

-identify normal brain and nerve activity, some occur only in specific developmental periods

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3
Q

root reflex

A

side of mouth is stroked or touched

-infant turns head, opens mouth to follow/root in direction of sucking

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4
Q

suck reflex

A

roof of baby’s mouth touched, baby sucks

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5
Q

Moro reflex

A

baby startled by loud sound, throws back head, extends limbs, and draws them back in

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6
Q

tonic neck reflex

A

baby’s head turned to one side, arm on that side stretches out and opposite arm bends up at elbow

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7
Q

grasp reflex

A

stroke baby’s palm, baby closes fingers in grasp

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8
Q

Babinski reflex

A

sole of foot is stroked, big toe bends back to top of foot, other toe fans out

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9
Q

step reflex

A

baby held upright with feet touching solid surface

-baby appears to take steps/dance

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10
Q

2-3 yr. old gross motor skills

A

rhythmic walks, hurried walk changes to run, jumps

-throws, catches, pushes riding toy with feet, little steering

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11
Q

3-4 yr. old gross motor skills

A

-walk up/down stairs, alternate feet, lead with one foot

-flex upper body, catch ball by trapping against chest, pedal and steer tricycle

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12
Q

4-5 yr. old gross motor skills

A

smooth run, skips with one foot, throws ball with increased body rotation

-rides tricycle rapidly, steers smoothly

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13
Q

5-6 yr. old gross motor skills

A

increase running speed to 12 ft/sec., smooth gallop, true skipping

-sideways stepping, mature, whole-body throwing, increased throwing speed

-rides bicycle with trained wheels

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14
Q

7-12 yr. old gross motor skills

A

increases running speed to 18+ ft/sec., continuous, fluid skipping

-increased vertical and broad jump, increased throwing and kicking speed, distance and accuracy

-increased ability to catch small balls over greater distances

-involves whole body in batting ball, continuous, relaxed hand dribbling

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15
Q

organized sports

A

half of U.S. kids participate in organized sports at some point between 5-18 yrs.

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16
Q

benefits of organized sports

A

increased self-esteem and social skills, increased confidence

-decline in social anxiety, continue playing into adolescence and adulthood

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17
Q

drawbacks of organized sports

A

overemphasis on competition, adult control substitutes children’s natural experimentation w/ rules and strategies

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18
Q

fine motor skills

A

achieved when kids learn to use smaller muscles

-hands, fingers, wrists

-requires precision and coordination

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19
Q

0-6 mth. fine motor skills

A

reflexive grasp, controlled reach

20
Q

6-12 mth. fine motor skills

A

reaches, grasps, puts object in mouth, controlled release of objects

-picks things up with pincer grasp (thumb and forefinger)

-transfers objects from one hand to the other, drops and picks up toys

21
Q

1-2 yrs. fine motor skills

A

build towers of 3 small blocks, scribbles, turns knobs

-self-feeds with minimal assistance, paints with whole arm movement

22
Q

2-3 yrs. fine motor skills

A

strings beads, turns single pages of a book, snips with scissors

-holds crayon with thumbs and fingers (not fist), paints with wrist action

23
Q

4-5 yrs. fine motor skills

A

cuts on the line, writes name and numbers 1-5, well-established handiness

24
Q

5-6 yrs. fine motor skills

A

grasps pencil with 3 fingers and colors within lines, pastes and glues appropriately

-draw basic pictures

25
6-7 yrs. fine motor skills
writes consistently on lines, good writing endurance, ties shoelaces independently
26
helping children develop fine motor skills
pop bubbles on wrap and use eyedropper to add food coloring to batter w/ index finger and thumb -finger painting, puzzles, video games, trace shapes or letters -legos or building blocks
27
sensation
reaction that occurs when info contacts sensory receptors -e.g., eyes, nose, tongue, skin, ears
28
perception
how we interpret sensations
29
ecological view
Gibson -we directly perceive information that exists in the world around us
30
affordances
opportunities for interaction offered by objects that fit within our capabilities to perform activities
31
birth vision
spend more time looking at mother's face as early as 12 hrs. after being born
32
infancy vision
nerves, muscles and lens of eye are developing -can't see small things far away, 20/240, interest in faces -4-8 weeks: discriminate between some colors -2 mths: don't see occluded objects as complete, only seeing what's visible --develop ability to see occluded objects are whole -at 4 mths., match voices to faces, distinguish between male and female faces --color preferences that mirror those of adults, preferring saturated colors -discriminate between faces of their own facial and ethnic group vs. others
33
5-8 mth. vision
track briefly occluded moving objects, 20/40
34
perceptual constancy
sensory stimulation is changing but perception of physical world stays the same
35
size constancy
recognition that object stays the same even though retinal image of object changes as you move toward or away from object -3 mths.
36
shape constancy
recognition that an object remains the same shape even though the orientation to us changes -3 mths.
37
depth perception
Gibson & Walk (1960)'s Visual Cliff Test --most infants stayed on shallow side, depth perception or fear of heights and social referencing
38
birth-3 mths. hearing
2 mths: fetus hear sounds
39
What kind of changes take place during infancy?
perceptions of sound's loudness, pitch (infants are less sensitive to low pitched sounds but are distinguished at 2 yrs.), and localization
40
pitch
perception of the frequency of a sound
41
localizing
detecting origins
42
otitis media
middle-ear infection that can impair hearing temporarily -birth-3 yrs.
43
intermodal perception
integrating info. from 2+ sensory modalities (i.e., vision and hearing)
44
touch and pain
infants respond to touch and pain, in the past there was surgery w/o anesthesia for infants
45
smell and taste
newborns can differentiate odors, sensitive to taste