Principal component analysis of language performances in Alzheimer's disease.
This report analyzes the performances of a group of 104 mildly to moderately impaired probable Alzheimer's disease patients (Mini Mental Examination 10 to 23) on linguistic tasks exploring written and oral language. A principal component analysis showed a two-factor solution including 14 out of the 15 linguistic tasks. Each factor is characterized by a type of operation required to process language material: "operativeness factor," where verbal material receives a transformation; "transcoding factor," where verbal material is processed without any structural modification. Oral verbal repetition remained isolated from the solution.
Marcie
P
P
INSERM U 324, Centre Paul-Broca, Paris.
Roudier
M
M
Goldblum
M C
MC
Boller
F
F
D000368:Aged; D000544:Alzheimer Disease / Q000150:complications* / Q000175:diagnosis; D005260:Female; D006801:Humans; D007802:Language; D007806:Language Disorders / Q000150:complications*; D007807:Language Tests; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D011932:Reading; D013060:Speech; D014705:Verbal Behavior; D014956:Writing