Language Flashcards

1
Q

Confirmation of hemispheric specialization for language

A

split brain patients percieve the left visual information but cannot identify it using language. They percieve right visual information and can identify is using language because the BRoca’s area is on the same side?

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2
Q

Broca’s area

A

region essential for language production

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3
Q

Brain regions of the language in the left hemisphere

A

Auditory cortex, Wenicke’s area, * Angular gyrus (Geschwind’s area), Broca’s area, Arcuate fasiculus, and Motor cortex

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4
Q

Auditory cortex

A

temporal lobe, identify pitch and loudness of sounds

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5
Q

Wernicke’s area

A

Temporal lobe, comprehension of language

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6
Q

Angular gyrus

A

Parietal lobe, number and semantic processing, working memory

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7
Q

Broca’s area

A

Frontal lobe, production of language

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8
Q

Arcuate fasiculus

A

Axons connecting Broca’s an Wernicke’s areas

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9
Q

Motor cortex

A

Frontal lobe, motor control of mouth and lips

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10
Q

Wernicke’s Aphasia

A

Fluent speech but poor comprehension of language

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11
Q

Broca’s Aphasia

A

Speech is non-fluent, agrammatical, but can understand language

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12
Q

Conduction Aphasia

A

Lesion of arcuate fasiculus -> both expression and comprehension remain intact, but with an impairment to repeat words

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13
Q

Wernicke-Deschwind Model of Language: repeating a spoken word

A

Auditory cortex -> Wernicke’s Area -> Angular Gyrus -> Broca’s Area -> Motor Cortex

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14
Q

Wernicke-Deschwind Model of Language: repeating a written word

A

Visual Cortex -> Wernicke’s Area -> Angular Gyrus -> Broca’s Area -> Motor CortexVisual cortex ->

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15
Q

Dual-stream Model of language

A

Bi-directional transfer of information between ventral stream and dorsal stream

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16
Q

ventral stream

A

processes speech signals for comprehension

largely bilaterally organized

17
Q

dorsal stream

A

maps acoustic speech signals to frontal lobe articulator networks for production

strongly left-hemisphere dominant

18
Q

A Universal language network

A

The language network in the brain shows similar properties across 45 languages. The language areas are lateralized to the left hemisphere, selective for language, and strongly functionally inter-connected.

19
Q

phonological development

A

the acquisition of knowledge about the sounds that distinguish meaning

20
Q

Semantic development

A

Learning the system for expressing meaning in a language

21
Q

Syntactic development

A

Learning the rules for combining words

22
Q

Pragmatic development

A

Acquiring knowledge of how language is used, including conversational conventions

23
Q

Structural Basis of Early Language Acquisition

A

Listening to speech activates extensive areas in the temporal lobe, with the activation strongly biased to the left hemisphere especially in infants

24
Q

Social Impact on Language Acquisition

A

Infants learn more easily from interactions with human beings speaking another language than from audiovisual exposure to the same language material

25
Q

The Critical Period for Language Acquisition

A

7 years

26
Q

Difference in brain region activation between adults and children

A

Different brain areas are active during language-based tasks between children and adults.

27
Q

Native and Second Languages

A

Second languages acquired in adulthood (‘late’ bilingual subjects) are spatially separated from
native languages (’early’ bilingual subjects) in the Broca’s area.

28
Q

The Neurobiology of Sign Language

A

The neural systems supporting signed and spoken language are very similar.

29
Q

Language and perception

A
  • Russian speakers were faster to discriminate two colors when they fell into different linguistic
    categories in Russian
  • Language and perception are two central cognitive systems that constantly interact and rely on
    each other.