Cognitive Skills Flashcards

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1
Q

infants look at their mom more

A
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2
Q

Review: Infants’
understanding of
the world

A
  • object: they are continious,cohisive
  • space
  • numbers: they can estimate two different arraways of objects with ratios-?
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3
Q

Where infants’
knowledge of the
world comes from ?

and many theoretical perspectives

A

corn knowledge?
information processing?

This week, we explore the basic skills that infants use to add to this knowledge

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4
Q

cognitive skills

A
  • attetion >
  • memory >
  • categorization
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5
Q

Methods of examining
cognitive skills

A

Eye movements
* Habituation/dishabituation
* Preferential looking
* Eye tracking

  • ERP (event-related potentials) -checking eletroc information in babys brain and other neural techniques, (FMIR,FNIRS)
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6
Q

Attention

A

Attention is a
gatekeeper for
further cognitive
processing

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7
Q

convert atteition

A

attetion without looking at it

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8
Q

attention

A

orienting > selecting > maintaining

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9
Q

a studis done about orienting

A

where an infant would look at a screen, where there was a stimuli and then a nother stimuli would appear in their peripheral

showed that 1 months would take longer to disingage from the central stimuli and orient to the peripheral stimuli then 3 or 6 months old infants would

also the stimuli mattered if the central stimuli was a face they would take longer to disingage with it

these findings were univeral

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10
Q

maintaining attetion

A
  • low ses infants maintain less attetion
  • younger children are more easily distracted
  • younge infants look longer on the stimuli then older infants
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11
Q

Selective
attention

A

Infants attend selectively to
biologically relevant stimuli from birth

ex: pay more attation to face then a scrambled face or blank space

ex: prefer simmilar to their ethinicity vs not-their ethinicity

ex: pay more attention their languague vs other languagues/or other sounds

-maybe because it would allow them to survive the world they are in

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12
Q

Selective attention

A
  • Infants also selectively attend to stimuli that violate their expectations
  • …which in turn can teach us more about what infants understand
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13
Q

Joint attention

A

By around 9-12 months of age, infants attend selectively to a specific type of biologically and socially relevant stimuli

threat/food sorces attetion

better joiner attention also have bigger vocabulary

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14
Q

Peripheral attention

A
  • Infants appear to be able to disengage their attention and reorient it to a new stimulus
  • But it’s harder when the original
    stimulus is biologically relevant

for example: when looking at a face (biologically relevent) they will not pay peripheral attetion otherwise they will

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15
Q

Memory

A

when infants attend to stimuli(and even sometimes when they do not),they may be enconded in memory

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16
Q

Memory structure

A

Hardware:

  • sensory memory (nerves continue to fire for a short period of time) - ex : u hit your head and continue hurting or turn on the light after it was turned off and u can feel that weir sensation>
  • short-term memory/working memory: processed >
  • long-term: can recall it >

Softwear: put short-term memory into long-term

  • strategies
    -rehearsal
    -categorizing
  • content knowledge
17
Q

short term memory study

A

they show a circle multiple times and later shows it in a different color

5 and 10 months old will look longer at the change iteam

18
Q

Long-term memory

A
  • Declarative memory:
    things u can talk about (declare)

-Semantic:facts,knowledge
,languague

-Episodic: unique personal experiences that occur in daily life

Procedural memory:

Essentially, it is the memory of how to do certain things.

ex:riding a bike

19
Q

episodic memory in infants

A

not very adavanced.

the hiccampuses is used

20
Q

infantile amnesia

A

Our early memories are
often vague or non-existent

21
Q

why?

A

deleting during synactic pruning

not sensing the senses

infants are not enconding

infants dont recall

22
Q

Infantile amnesia and memory development

A
  • Infants as young as 6 months of age exhibit immediate imitation
  • …suggesting that stimuli are encoded and recalled at this age
  • By 12 months of age(1old), infants imitate actions observed the previous day
  • By 14 months of age(1year and 2 months), infants imitate actions observed a week or even
    months earlier

american remenber event that were emotional and specific.chinese remenber general and generic

23
Q

first memories

A
  • come with strong emotions
    (a lot of times sadness)
  • things that are outside of the mundained
24
Q

categorizing

A

as memory grows,infants organize information into categories

25
Q

categorization*

A
  • super-ordinate classes: less specific - infants know this

ex: animal

  • basic classes: basic nouns ex:dog - infants can differate
  • sub-ordinate clasess: more specific
    ex:labrador -older children
26
Q

how to do we know kids categorize?

A
  • when shown images of dogs or cats and they look longer at the animal they dont categorize the other in it and thus should be in another category
  • sequential touching tesk - u test categorazation in children by looking at what they touch. they tend to touch similar things one after another (they will touch a dog,a horse then bird before touching a plane)
  • using EEG : infants are presented a sequence of people and throwed a random animal sometimes. the way it works is that our brain acts different when there is an oddball(infrequent) and so infants would show evidence that the iteam from the infrequently presented category was different

7 months passed the test, 4 months didnt pass the test

27
Q

How do infants learn
categories?

Linguistic information (by 12-13 months)

A
  • lingustic information, ‘‘look that is a….’’

-repepetive exposere + linguistic information (together) = in infants categorizing animal/object

toma= they chose a dinosser over the fish

28
Q

Statistical learning

A
  • Statistical learning—detecting statistically predictable patterns in stimuli
  • one stimulus is adjescent with another stimuli
  • Simple example: when Mom puts her hat and mitts on, it’s time to go outside
  • But the learning can be much more powerful than that:
  • Speech
  • Music (what notes will follow)
  • Visual perception
29
Q

Statistical learning

A

Visual feature
correlations (by 4-7 months)

schemas

-one feature, they can categorize with past category

30
Q

Statistical learning

A
  • Word segmentation

how they figure it out what words are ?
(statistical learning)

they learn that certain silabas are followed by other silabas

31
Q

Statistical learning

A
  • There are no consistent pauses
  • How do infants learn what individual words are?

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