Genetic Epidemiology, Translational Neurogenomics, Psychiatric Genetics and Statistical Genetics Laboratories investigate the pattern of disease in families, particularly identical and non-identical twins, to assess the relative importance of genes and environment in a variety of important health problems.
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PMID
24521694
TITLE
The "Alzheimer's type" profile of semantic clustering in amnestic mild cognitive impairment.
ABSTRACT
Impairments in learning and recall have been well established in amnestic mild cognitive impairment (aMCI). However, a relative dearth of studies has examined the profiles of memory strategy use in persons with aMCI relative to those with Alzheimer's disease (AD). Participants with aMCI, nonamnestic MCI, AD, and healthy older adults were administered the California Verbal Learning Test-II (CVLT-II). Measures of semantic clustering and recall were obtained across learning and delayed recall trials. In addition, we investigated whether deficits in semantic clustering were related to progression from healthy aging to aMCI and from aMCI to AD. The aMCI group displayed similar semantic clustering performance as the AD participants, whereas the AD group showed greater impairments on recall relative to the aMCI participants. Control participants who progressed to aMCI showed reduced semantic clustering at the short delay at baseline compared to individuals who remained diagnostically stable across follow-up visits. These findings show that the ability to engage in an effective memory strategy is compromised in aMCI, before AD has developed, suggesting that disruptions in semantic networks are an early marker of the disease. (JINS, 2014, 20, 1-11).
DATE PUBLISHED
2014 Apr
HISTORY
PUBSTATUS PUBSTATUSDATE
aheadofprint 2014/02/13
entrez 2014/02/14 06:00
pubmed 2014/02/14 06:00
medline 2014/02/14 06:00
AUTHORS
NAME COLLECTIVENAME LASTNAME FORENAME INITIALS AFFILIATION AFFILIATIONINFO
McLaughlin PM McLaughlin Paula M PM 1 Department of Neurology, University of California, Los Angeles, Los Angeles, California.
Wright MJ Wright Matthew J MJ 2 Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California.
Larocca M Larocca Michael M 4 Department of Psychology, University of Alabama, Birmingham, Alabama.
Nguyen PT Nguyen Peter T PT 5 Department of Clinical and Health Psychology, University of Florida, Gainesville, Florida.
Teng E Teng Edmond E 1 Department of Neurology, University of California, Los Angeles, Los Angeles, California.
Apostolova LG Apostolova Liana G LG 1 Department of Neurology, University of California, Los Angeles, Los Angeles, California.
Ringman JM Ringman John M JM 1 Department of Neurology, University of California, Los Angeles, Los Angeles, California.
Zhou Y Zhou Yan Y 1 Department of Neurology, University of California, Los Angeles, Los Angeles, California.
Cummings JL Cummings Jeffrey L JL 7 Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, Nevada.
Woo E Woo Ellen E 1 Department of Neurology, University of California, Los Angeles, Los Angeles, California.
INVESTIGATORS
JOURNAL
VOLUME: 20
ISSUE: 4
TITLE: Journal of the International Neuropsychological Society : JINS
ISOABBREVIATION: J Int Neuropsychol Soc
YEAR: 2014
MONTH: Apr
DAY:
MEDLINEDATE:
SEASON:
CITEDMEDIUM: Internet
ISSN: 1469-7661
ISSNTYPE: Electronic
MEDLINE JOURNAL
MEDLINETA: J Int Neuropsychol Soc
COUNTRY: England
ISSNLINKING: 1355-6177
NLMUNIQUEID: 9503760
PUBLICATION TYPE
PUBLICATIONTYPE TEXT
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
COMMENTS AND CORRECTIONS
REFTYPE REFSOURCE REFPMID NOTE
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GRANTS
GRANTID AGENCY COUNTRY
P50 AG016570 NIA NIH HHS United States
P50AG016570 NIA NIH HHS United States
R01 AG040770 NIA NIH HHS United States
GENERAL NOTE
KEYWORDS
MESH HEADINGS
SUPPLEMENTARY MESH
GENE SYMBOLS
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OTHER ID's
OTHERID SOURCE
NIHMS591417 NLM
PMC4086918 NLM