Chapter 4 Flashcards

1
Q

What is the defining characteristic of dyslexia?

A

difficulty in phonological processing

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2
Q

Dyslexia is a _________.

A

developmental language disorder

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3
Q

Dyslexia is present at _____ and continues through _____.

A

birth; adulthood

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4
Q

What are the deficits seen in those with dyslexia?

A
  1. storing, retrieving, and using phonological codes in memory
  2. phonological awareness and speech production
  3. learning to decode and spell printed words
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5
Q

Later deficits in ___ and ___ can be seen in those with dyslexia.

A

reading comprehension; written language

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6
Q

Children need ____, ____, and ______.

A

exposure to print; instruction in how print works; opportunities to practice

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7
Q

What is joint book reading?

A

when a parent reads to their child, and both are focusing on the pictures and words

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8
Q

Joint book reading accounts for ____ of variance in reading outcomes.

A

8%

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9
Q

Are children at a higher risk or lower risk with less exposure to print?

A

higher risk

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10
Q

What is used to rule out lack of instruction as a cause of reading disorders?

A

Response to intervention

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11
Q

_____ of instruction makes a difference in reading disorders.

A

intensity

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12
Q

____ identification is needed for reading.

A

letter

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13
Q

What is the Matthew Effect?

A

Children who have poor readers have fewer opportunities for practice, less desire to read, and if teachers have low expectations, do not feel motivated to succeed.

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14
Q

What chromosomes are impacted in those with dyslexia?

A

1, 6, and 15

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15
Q

Is there a genetic basis for reading disorders?

A

Yes

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16
Q

___% chance of siblings to have reading disorders.

A

40

17
Q

___% chance of identical twins to have reading disorders.

A

68

18
Q

___% chance of fraternal twins having reading disorders.

A

40

19
Q

What is the planum temporale?

A

structure in the temporal lobe involved in language processing

20
Q

What other areas of the brain are useful for reading?

A

corpus callosum, inferior parietal lobe, and cerebellum

21
Q

What are the three neural systems used for reading?

A

Dorsal, Ventral, and Frontal

22
Q

Where is the dorsal neural system for reading?

A

temporoparietal

23
Q

What is impacted if there is an infarction in the dorsal neural system?

A

phonological processing and mapping of letters and sounds

24
Q

Where is the ventral neural system for reading?

A

occipitotemporal

25
Q

What is impacted if there is an infarction in the ventral neural system?

A

processing visual word forms

26
Q

Where is the frontal neural system for reading?

A

inferior frontal gyrus

27
Q

What is impacted if there is an infarction in the frontal neural system?

A

effortful phonological processing

28
Q

Children with dyslexia have ____ activation of the dorsal route and ____ frontal route activation.

A

less; more

29
Q

Infants that have a lack of neural response to sound are ____ at risk for dyslexia.

A

more

30
Q

Reversals are typical until age ____.

A

7