• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/38

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

38 Cards in this Set

  • Front
  • Back
Pathology of Frontal temporal degneration
1) neuronal loss, gliosis, and sometinmes spongiosis and psick bodies
2) absense of neurofibrillary tangles and amyloid plaques seen in AD
3 subtypes of Frontal temporal degneration
1) frontotemporal dementia (symetric or assymetrci frontal lobe or anterior lobe degeneration)
2) sematic dementia (left temporal degeneration)
3) progressive nonaffluent aphasia (left inferior frontal degeneration)
Progressive non-affluent aphasia
marked dysfunction in expressive language (aggramatism, anomia)

tests:
-Low word generation FAS
-poor repetition
-poor comprehension of grammatical structures (word sequencing)
-variable decline in word retieval (Boston Naming)
Semantic Dementia
loss in accumulated information stores (vocab., object identity, surface dyslexia)

Tests:
Poor word retrieval (bostom naming)
lower fund of knowledge (IN)
reduced word knowledge (VC)
poor catergory fluency (Catergory naming)
Relatively preserved recent memory as compared to remote memory
Dementia of frontal type
decline in personlaity and behavior
Tests:
Executive functioning disturbances
Constructional ability

AD vs. left and right FTLD
AD<L and R FTD
contructional ability (Rey-Osterrieth copy, Berry)
Left FTLD<AD
-word-retrieval (Boston Naming Test)
-Verbal semantic memory (IN, VC, catergory generation)
-verbal executive ability (FAS)
Right FTLD<AD
more perseverative behavior
AD and FTLD did not differ in
memory perfomrance (verbal or visual)
IQ subtest other than VC and IN
Neuropsychology characteristics of Alzheihmers
1) Prominent declines in memory (verbal and nonverbal)
2) At least mild declines in:
----Language (word-retrieval, word generation)
----Visual Perceptual-spatial Skills
----Executive/Problem-solving Skills
---Mental Speed
3) Overall intelligence (PIQ<VIQ)
4) Intact basic attention, remote memory, vocabulary range, motor dexterity
Dysfunction in Temporal lobes
Verbal and nonverbal memory, word-retrieval
Parietal lobes
Visual perceptual/spatial skills
IQ
Math
Frontal lobes
Executive Tasks
MRI
scans found....
Hippocampal atrophy
SPECT/PET
found...
Primary
Bitemporal-
Biparietal
hypoperfusion
AD fibers
neurofibrilly tangles
Best measures for initial diagnosis of AD
Learning and recall scores (Logical Memory, RAVLT) because they decline precipitously at onset of disease)
Best measures of staging disease
Word-retrieval (Boston Naming Test), word generation (FAS), visual spatial skills (Block Design, Rey Figure), and recognition memory (because they decline gradually from onset to middle stages of the illness)
Cognitive differences between young and old AD patients
--After correction for age, very old AD patients (>80) outperformed “young” AD patients (<70) on tests of executive functions, visuospatial skills, and delayed memory
---Very old AD patients do not show the focal, disproportionate losses in memory and executive function seen in younger AD patients
Transitional state between AD and age-related cognitive changes
1) Show more extensive memory loss than normal aging, but do not meet criteria for dementia
1) Progresses to AD at rate of 10% to 15% per year (as compared to 1% to 2% of normal controls)
2) Up to 80% meet criteria for AD within 6 years
Frontal variant subgroup of AD
Display frontal dysfunction in addition to posterior disturbance
----Memory, language, and visual-spatial skills comparable to AD
----More executive deficits, neuropsychiatric symptoms, impairment of daily living, and caregiver distress than AD
Vascular Dementia
---Multiple infarcts in cerebral gray matter (cortical vascular dementia), and/or
---Lesions in subcortical white matter (subcortical vascular dementia or subcortical ischemic vascular dementia)
Cognitive findings in AD versus Vascular Dementia
1) Both exhibit generalized cognitive dysfunction involving multiple cognitive domains:
a) Semantic memory/naming, psychomotor speed, memory, executive function, visuospatial ability, and language

2) Despite the differences in brain pathology, many studies have failed to detect differences in cognition between the two groups
a) However, in some studies memory loss is more prominent in AD, while frontal and subcortical dysfunction is the most characteristic aspect of vascular dementia leading to worse executive function
volume of subcoritcal intensities related to
decline in attention
processing speed
executive skills
whole brain atrophy
language
memory
visual perceptual skills
Frontal variant subgroup of AD
Display frontal dysfunction in addition to posterior disturbance
----Memory, language, and visual-spatial skills comparable to AD
----More executive deficits, neuropsychiatric symptoms, impairment of daily living, and caregiver distress than AD
Vascular Dementia
---Multiple infarcts in cerebral gray matter (cortical vascular dementia), and/or
---Lesions in subcortical white matter (subcortical vascular dementia or subcortical ischemic vascular dementia)
Cognitive findings in AD versus Vascular Dementia
1) Both exhibit generalized cognitive dysfunction involving multiple cognitive domains:
a) Semantic memory/naming, psychomotor speed, memory, executive function, visuospatial ability, and language

2) Despite the differences in brain pathology, many studies have failed to detect differences in cognition between the two groups
a) However, in some studies memory loss is more prominent in AD, while frontal and subcortical dysfunction is the most characteristic aspect of vascular dementia leading to worse executive function
volume of subcoritcal intensities related to
decline in attention
processing speed
executive skills
whole brain atrophy
language
memory
visual perceptual skills
2 mechanism for cognitive loss in VD
specific lesions in subcortical pathways
tissue loss accompany brain atrophy due ot inafarction or cerebro vascular disease
SPECT depression showed
decreased frontal and right hemisphere
Depression =
decline in nonverbal skills (PIC/nonverbal memory)
severity of depression=decline in mental speed/executive
State versus trait depressive pattern
trait (right hemishpehere) :
-- does not vary with severity
--present before onset of sx
--remains after treatment
--permance suggest structural brain abnormalites
State:
-- varies with symptom severity
--improve with treatment
--non permant alterations
Right versuis left
Right: neural substrate for emotion
LEft: control of emotional expression
2 condition necessary for depression
1) abnormal structural of right hemishphere
2) interuption of the regulatory control of affect by the abterior subcortical dominant hemiphere
after left hemishpere injury depression
disrupts inhibtion of preexisting cereberal abnormality
cognition in depressive subtypes
vegtative symptoms = cognitive abnotmalities