Type

Journal Article

Authors

Brian Lawlor
Ian Robertson
Brendan Bunting
Jochen Kaiser
Paul Dockree
Leigh Carolan
Michael Hogan
Richard Roche

Subjects

Psychology

Topics
psychology information processing event related potentials information age cognitive processing older adults alzheimer s disease ad models theoretical

Electrophysiological and information processing variability predicts memory decrements associated with normal age-related cognitive decline and Alzheimer's disease (AD) (2006)

Abstract Recent theoretical models of cognitive aging have implicated increased intra-individualvariability as a critical marker of decline. The current study examined electrophysiologicaland information processing variability and memory performance in normal younger andolder controls, and older adults with Alzheimer's disease (AD). It was hypothesized thathigher levels of variability would be indicative of age-related and disease-related memorydeficits. Results indicated both implicit and explicit memory deficits associated with AD.Consistent with previous research, behavioral speed and variability emerged as sensitive toage- and disease-related change. Amplitude variability of P3 event-related potentials was aunique component of electrophysiological activity and accounted for significant variance inreaction time (RT) mean and RT standard deviation, which in turn accounted for significantvariance in memory function. Results are discussed in light of theoretical and applied issuesin the field of cognitive aging.
Collections Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Psychology
Ireland -> Maynooth University -> Subject = Science & Engineering
Ireland -> Maynooth University -> Subject = Science & Engineering: Psychology
Ireland -> Maynooth University -> Type = Article
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering
Ireland -> Maynooth University -> Status = Published
Ireland -> Maynooth University -> Open Access DRIVERset

Full list of authors on original publication

Brian Lawlor, Ian Robertson, Brendan Bunting, Jochen Kaiser, Paul Dockree, Leigh Carolan, Michael Hogan, Richard Roche

Experts in our system

1
Brian A. Lawlor
National College Ireland
Total Publications: 125
 
2
Ian H Robertson
Trinity College Dublin
Total Publications: 162
 
3
Paul M Dockree
Trinity College Dublin
Total Publications: 35
 
4
Michael J. Hogan
National University of Ireland Galway
Total Publications: 35
 
5
Richard Roche
Maynooth University
Total Publications: 42