Rachael L.
2017-03-27 22:11:48 0 举报Characteristics of semantic dementia, progressive nonfluent aphasia, and alzheimer's disease
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Behavior: Appropriate until very late
General Neurologic Findings: Buccofacial apraxia and unilateral limb signs commonly seen
Frontal Executive Functions: Intact in Early Stages
Visuospatial and Perceptual Skills: Intact
Frontal Executive Functions: Might be impaired
paraphasias: Phonological
MRI Findings: Hippocampal + - medial temporal atrophy
Alzheimer'type Dementia
Disease Progression: Variable
General Neurologic Findings: Normal until late stage
Age of Onset: 65
Progressive Nonfluent Aphasia
Episodic memory: Preserved for recent events
Frontal Executive Functions: Intact
General neurologic findings: None usually
Syntax: intact
Comprehension of single words: imparied
Semantic Dementia
Episodic memory: intact
Spontaneous Speech: Initially normal in most instances
Episodic memory: Severely impaired early in course
Repetition: Normal for single words
Comprehension of single words: intact
Syntax: impaired
Disease Progression: Rapid
paraphasias: semantic
MRI Findings: Left perisylvian atrophy
Repetition: Phonemic errors
Repetition: generally intact
Disease Progression: Slow
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