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Flashcards in Cortical Lesions Deck (63)
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31

What is executive function?

a critical domain that involves the capacity to plan, carry out, and monitor a sequential goal-directed action

32

What is visual agnosia?

ability to see an image but can't recognize it

33

This is located in in the L frontal lobe and is Brodmann's area 45.

Broca's area

34

This is a failure of recognition through one sensory modality; visual, auditory, and tactile agnosias have been described.

Agnosia

35

This is the failure to alter one's actions in response to changing environmental stimuli.

perseveration

36

What happens with bilateral hippocampal resection?

permanent amnesia

37

How many layers are in the allocortex? What does it consist of? What are these brain areas important for?

  • 3
  • the hippocampus and temporal lobe
  • memory

38

This is inattention to one side of the body or extrapersonal space.

hemineglect

39

What is Agnosia?

A failure of recognition through one sensory modality; visual, auditory, and tactile agnosias have been described.

40

How thick is the cerebral cortex? How many layers does it consist of?

3mm; 6 layers

41

What is mediated by the limbic system?

the 4 Fs:

  • fighting
  • fleeing
  • feeding
  • F-ing

42

This is a loss of motivation and erosion of initiative .

apathy

43

Apathy is caused by _____ lesions.

medial frontal

44

What do dorsolateral prefrontal lesions sometimes cause?

executive dysfunction

45

Name the lobe:

  • vision
  • vision perception
  • visual recognition

occipital lobe

46

This is the inability to inflect speech with emotion.

motor aprosody

47

What does a medial frontal lesion cause?

apathy

48

A lesion in the left occipital lobe and splenium of the corpus callosum can cause?

pure alexia

49

This is the impaired ability to identify objects by name; a synonym is dysnomia.

anomia

50

What is Agraphia?

An acquired disorder of writing, often seen with aphasia and other neurobehavioral syndromes.

51

This is a pt can write but can not read due to a lesion in the left occipital lobe and splenium of the corpus callosum.

pure alexia

52

What is anomia?

Impaired ability to identify objects by name; a synonym is dysnomia

53

This is the inability to maintain a coherent line of thought despite adequate arousal and language function.

confusion

54

What is Wernicke's aphasia?

impaired auditory comprehension due to a lesion in the posterior region of the L superior temporal gyrus

55

What are the functions of the temporal lobe?

  • language comprehension (L)
  • sensory prosody (R)
  • memory
  • emotion

56

What is apathy?

loss of motivation and erosion of initiative

57

What are the functions of the occipital lobe?

  • vision
  • vision perception
  • visual recognition

58

What is an acute confusional state?

A rapidly evolving disorder of attention

59

Where is Broca's area? Which Brodmann's area is it?

  • in the L frontal lobe
  • Brodmann's area 45

60

What is the ability to see an image but can't recognize it called?

visual agnosia