Neuroanatomical correlates of unawareness of memory deficits in early Alzheimer's disease.

Abstract:

BACKGROUND/AIMS:To investigate neuroanatomical substrates of unawareness of memory deficits in patients with early Alzheimer's disease (AD). METHODS:We compared regional perfusion deficits between AD patients with awareness (n = 19) and unawareness (n = 19). SPECT data were analyzed by statistical brain imaging method. RESULTS:Statistical maps demonstrated a more extensive and severe reduction in perfusion in the unaware group than in the aware group. Quantitative analysis demonstrated a significant difference between the groups in the right subcallosal, anterior cingulate and cingulate gyri and left orbital, subcallosal, and anterior cingulate gyri. CONCLUSION:Functional damage to the inferior, medial and orbital frontal lobes as well as the anterior cingulate gyri may be associated with the lack of awareness in patients with early AD.

authors

Hanyu H,Sato T,Akai T,Shimizu S,Hirao K,Kanetaka H,Iwamoto T,Koizumi K

doi

10.1159/000119594

subject

Has Abstract

pub_date

2008-01-01 00:00:00

pages

347-53

issue

4

eissn

1420-8008

issn

1421-9824

pii

000119594

journal_volume

25

pub_type

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