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Neurosci Exam 3 > Cortical Localization of Function II > Flashcards

Cortical Localization of Function II Flashcards

1
Q

What system is located on the banks of the calcarine fissure?

A

Primary visual cortex

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2
Q

The left visual field is represented on _
The lower visual field is represented on _
Central vision is represented on _

A

the right visual cortex
the dorsal bank
occipital pole

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3
Q

Small lesions of the primary visual cortex produce _ on where?

A

Scotomas

Opposite visual field

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4
Q

Large lesions of the primary visual field lead to _ or _

A

Quadrantopsia

Hemianopsia

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5
Q

The peristriate cortex forms the _, which consists of _ (2)

A

Secondary visual cortex

V2 and V3

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6
Q

The function of the V2 neurons of the secondary visual cortex is _

A

Respond to complex patterns

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7
Q

The funtion of the dorsal V3 is _

The function of the ventral V3 is _

A

Large scale motion

Object recognition

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8
Q

Visual perception and visuomotor functions are dependent on each other, true or false

A

False

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9
Q

At what point in the visual pathway do the ventral and dorsal stream develop

A

V3

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10
Q

The function of the ventral stream is _ (2)

A

Pattern / object recognition

Storage of visual information

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11
Q

The function of the dorsal stream is _ (2)

A

Placing objects in external space

Saccadic eye movements

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12
Q

The components of the secondary visual areas are _

A

V2 and V3

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13
Q

The visual association areas are _

A

V4 and V5

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14
Q

V4 projects to the posterior inferior temporal lobe. Its functions are split left and right. Its function on the left is _. Its function on the right is _

A

Left function is processing data associated with language (writing)
Right function is holistic, non-verbal recognition (e.g. faces)

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15
Q

Alexia and Agraphia are associated with lesions of _

A

Left posterior inferior temporal lobe

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16
Q

Visual form agnosia is associated with lesions of

A

occipito-temporal cortex

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17
Q

The visual ventral stream is associated with what association area?

A

V4

18
Q

The dorsal stream is associated with what association area?

A

V5

19
Q

The major function of V5 is

A

Assemblage of objects in visual space

20
Q

The major symptom of Balint’s syndrome is _. It results in _

A

Simultanagnosia

Inability to focus on more than one thing at a time

21
Q

Balint’s syndrome is caused by a lesion of . An example of an injury that can cause Balint’s syndrome is

A

Posterior parietal cortex (temporal-parietal-occipital junction)
Watershed stroke between MCA and PCA

22
Q

The location of the primary auditory cortex is _. What lobe is it found on?

A

Heschl’s gyrus

Temporal lobe

23
Q

The belt cortex functions as _ relative to the auditory cortex

A

Association cortex

24
Q

The function of function of the left and right belt cortices are _

A

Left - decode temporal components of sound (sequence)

Right - decode spectral components (harmonics, pitch)

25
Q

The location of Wernicke’s are is _

A

left posterior superior temporal gyrus

26
Q

Damage to Wernicke’s area results in _

A

Sensory aphasia (inability to understand speech)

27
Q

The corresponding area to Wernicke’s on the right is concerned with _

A

Prosody (humor, sarcasm)

28
Q

The medial temporal lobe (parahippompus, amygdala, hippocampus) are critical for _

A

Memory formation
Emotion
Sexual behavior

29
Q

The primary somatosensory cortex is located on what lobe?

A

Parietal lobe

30
Q

The major thalamic inputs to the somatosensory cortex are from _

A

VPM

VPL

31
Q

The locations of the detailed somatotopic map of the body is located on _. What side of the body does it represent?

A

Post central gyrus

Contralateral

32
Q

Lesions of the post central gyrus result in _ (2)

A

Agraphesthesia (recog. writing on skin)

Asterognosis (know where being touched)

33
Q

A characteristic of the _ somatosensory association areas is _

A

5

Contain crude homonculus

34
Q

Damage to the dorsomedial association area leads to _

A

Construction apraxia (inability to draw, assemble blocks)

35
Q

Damage to the ventromedial association area lead to _

A

Tactile agnosia (cannot recognize objects by touch)

36
Q

The right inferior parietal lobe is involved with _

A

Self perception, position of body in external space

37
Q

Damage to the right inferior parietal lobe leads to _

A

Hemispatial neglect (neglect of left side of body, neglect of left visual field)

38
Q

The left inferior parietal lobe is involved with _

A

Language functions, verbal working memory

39
Q

Damage to the left inferior parietal lobe results in _ (3)

A

Agraphia
Acalculia
Finger agnosia

40
Q

A name for the medial parietal lobe is _. It is the last region to fully myelinate

A

Precuneus

Neurosci Exam 3 (10 decks)

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