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Neuroscience > Audition > Flashcards

Audition Flashcards

1
Q

What layer is thick in A1?

A

Granular layer

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2
Q

What area makes up A1?

A

41

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3
Q

Where is A1 found?

A

Inside the lateral sulcus

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4
Q

What will a lesion to A1 cause?

A

Loss of ability to localize sound of specific frequency that was lesioned

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5
Q

What streams travel along the dorsal pathway of A1?

A
  • Where

- How

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6
Q

What is the function of the dorsal pathway of A1?

A

Localizes sound sources and references them for movement

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7
Q

What stream travels along the ventral pathway of A1?

A

What stream

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8
Q

What is the function of the ventral stream?

A

Linguistic functions

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9
Q

Where is the ventral stream found?

A
  • Uncinate fasciculus
  • Arcuate fasciculus
  • Temporal and frontal lobe
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10
Q

What are the 2 language centers?

A
  • Broca’s

- Wernicke’s

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11
Q

What areas make up Broca’s area?

A

44 and 45

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12
Q

What areas make up Wernicke’s area?

A

22

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13
Q

What is the function of Broca’s area?

A

Compiles final imprint to be expressed as speech

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14
Q

Where does Broca’s area send its “final imprint”?

A

To the motor cortex

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15
Q

What is the function of Wernicke’s area?

A

Comprehends written/ verbal language

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16
Q

Which lobe tends to be dominant for language centers?

A

The left

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17
Q

What structure connects the 2 language centers?

A

Arcuate fasciculus

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18
Q

Which language center cannot function without input from the other?

A

Broca’s

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19
Q

What is the pathway for repeating a spoken word according to the Wernicke - Geschwind model?

A

Auditory complex –> Wernicke –> Associative/ Broca –> Motor

20
Q

What is the pathway for repeating a written word according to the Wernicke- Geschwind model?

A

Primary visual –> Angular –> Wernicke –> Broca –> Motor

21
Q

What is aphasia?

A

Loss of language abilities (cognitive and motor control often still present)

22
Q

What is anomia?

A

Can’t find the right word

23
Q

What is alexia?

A

Inability to read

24
Q

What is agraphia?

A

Can’t write

25
Q

What is dysarthria?

A

Can’t use muscles of speech

26
Q

What is destroyed in Pure Word Deafness?

A
  • A1 bilaterally
27
Q

What is Wernicke’s area disconnected from in Pure Word Deafness?

A
  • Auditory input
28
Q

How can the individual still hear with destruction of A1?

A

Through thalamus and subcortical centers (amygdala

29
Q

Which language center is affected in Motor Aphasia?

A

Broca’s

30
Q

Which language center is affected in Sensory Aphasia?

A

Wernicke’s

31
Q

In which aphasia can the individual understand speech, but can’t produce it?

A

Broca’s

32
Q

Which aphasia produces a flat melodic intonation?

A

Broca’s

33
Q

Which aphasia produces neoligistic jargon?

A

Wernicke’s

34
Q

Which aphasia produces short senteces with pauses?

A

Broca’s

35
Q

Which aphasia produces perfect speech does not make any sense/

A

Wernicke’s

36
Q

Which aphasia produces fluent speech with substitutions that are phonetically similar?

A

Conduction aphasia

37
Q

Which aphasia produces impaired sequencing?

A

Conduction aphasia

38
Q

What is lesioned in Alexia without Agraphia?

A

Splenium of corpus callosum

- Left occipital lobe

39
Q

What other symptom accompanies alexia without agraphia?

A

Visual field loss on right side

40
Q

What is lesioned in Agraphia?

A
  • Parietal lobe
41
Q

What language area does the parietal lobe communicate with to form graphemes (coordinates of written language)?

A

Wernicke’s

42
Q

What is lesioned in Alexia with Agraphia?

A
  • Angular cortex
43
Q

What is performed by the precentral gyrus of the insula?

A

Articulatory planning

44
Q

What is the function of the middle temporal gyrus and fibers?

A

Semantics

45
Q

What is the function of Anterior Area 22?

A

Comprehension of complex grammer

Neuroscience (33 decks)

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